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Why is it important that the patient remain in the same position during each treatment?

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User-Submitted Answers

Why is it important that the patient remain in the same position during each treatment?
The patients treatment plan is based on the original CT and positioning that went along with it. For best results it is crucial that the patient remain in the same position daily to target the tumor area and deliver the full dose to maximize chance of survival.
So that they get appropriate dose in the target area where treatment is required.
To make sure that the radiation is going to the exact spot where it needs to be going which was measured accordingly in their treatment plan and must be consistent throughout treatments.
Radiation therapy is a field that focuses on very precise and accurate treatments. Thinking back to the process of how the patient goes from the CT Simulation to their treatments, it is important to remember that the treatment we deliver and the plan that is approved to deliver the treatment is based on the CT Scan and all the doses and calculations are based on that position from their scan. If they were treated not in the same position, we would not be able to deliver the treatment as per treatment plan.
We want to make sure we are treating the target as accurately as possible and part of doing that is ensuring the patient is in the same poistion. A difference in positon could mean potential underdosing of the target and/or overdosing of critical structures.
Radiation therapy is usually a local treatment. In order for the radiation to be delivered in the most accurate way, the patient has to stay still and the beam has to go to the exact place of where the target tumor is in order for the patient to receive the best dose in an unhealthy cell and not in a healthy cell.
Radiation therapy is location specific, and once the patient is line up with the beams and slight movement or shifts could cause the treatment to be administered on healthy tissue rather than the area of need.
So that the treatment can be given precisely to the cancer whilst avoiding healthy tissues.
The tumor is in a certain location within the patient and the treatment needs to be directed at the cancerous cells every dose, not surrounding healthy tissue.
Because radiation therapy involves targeting specific cells and in order to maintain accuracy, the exact position needs to be reproduced in every therapy session.
To make sure we are treating the correct volume such as the ptv, we are not underdosing the ptv or overdosing surrounding critical organs. To achieve good local control and minimising side effects by irradiating less healthy tissue.
Because the accuracy of the treatment is dependent on the duplication of the exact position the patient was in for their initial treatment.
Radiotherapy is planned very precisely. Movement from the patient could mean healthy structures are radiated and the target volume missed.
Reproducibility of treatment, accurate treatment delivered and no geographical miss.
To reproduce treatment delivery ensuring accuracy and effectiveness.
To limit dose to normal tissue and get proper dose of radiation to desired area.
It is important for patients to remain in the same position because we want to be treating only the position that is planned and nothing more.
It is important for the patient to remain in the same position during treatment. This ensures that the treatment is reproducible and that the radiation is targeted at the treatment volume. If the patient moves during treatment, this could jeopardize the treatment by possibly causing a geographical miss.
To ensure that you are treating the same location each time. If the patient is not in the same position each time you have no idea where exactly you are treating.
Having the patient in the same position is vital to delivering the most accurate treatment.
So that the patient receives the same exact treatment in the same exact spot everyday as it is important to deliver the total radiation dose in a precise location.
Reproducibility due to close margins required, as high doses need to be delivered to the PTV whilst minimising dose to organs at risk. If the patient is in a different position, this leads to geometric uncertainty.
To make sure the same area is being treated each day. It needs to be correct to the millimetre.
For the success of radiotherapy with much or unneccessary associated morbidity,
Reproduction is very important in radiation therapy as the patients treatment is planned with a high degree of accuracy and therefore their position needs to be the same to keep the same degree of accuracy. It will ensure the treatment is delivered how the radiation oncologist has planned it to be delivered with maximum dose to the tumor and minimum dose to the surrounding structures. With the advancement in technology, stabilization has also advanced and with treatments like stereotactic body radiotherapy sub mm accuracy is crucial.
It is important so that the beam is able to hit directly on the targeted area and not any area of the body that is not diseased with cancer.
Because we are using such high energy x-rays that damage any cells along the primary beam. Each patients planned is created specifically for the position they were in simulation, thats where we collected the data of their tumour and their contours and this is used to create their plan. They need to be in the same position every day so that we are treating exactly what we planned from their CT scans. If they are not in the same position everyday, healthy normal tissue and specific organs surrounding the treatment site may receive unneccessay dose. This can cause in later years secondary malignancies.
It is crucial so that the treatment is targeted at the area it needs to be aimed at and so does to healthy tissue is reduced.
The patient was simulated in one position, and the treatment plan was based around this patient positioning. The patient must remain still because the set up relies on remaining consistent from the start of the setup to end of treatment, each day. This will guarantee the Treatment site volumes are as accurate as possible.
You want to give focal radiotherapy - you want to give the treatment to the tumour only and not any other organ.
The patient must be positioned in the same position each treatment to ensure that the treatment that was planned from simulation is as close as clinically possible to the patient for every treatment, and we are in fact treating the target volume are reducing the risk to normal tissue. It is also important that the patient understands this importance.
As treatment irradiates healthy tissue as well as the mass or area it is designed for. The healthy tissue around the mass can be organs that are sensitive and can be damaged by radiation easily. If the patient isnt in exactly the same position as the initial CT then the treatment will not be the same as the plan and will not be as affective.
To ensure that the high doses of radiation are delivered within the clinical treatment field that the doctor has prescribed.
So that you can treat them in exactly the same position every day. Any change in position might mean we have a geographical miss.
Under IRMER the aim of our treatment is to keep dose to normal structures and the the patient as low as reasonably practicable. With the patient in the same position this ensures we are covering our ptv with an accurate dose and keeping the dose to our organs at risk to a minimum. This is beneficial to patients as it means the ptv is recieving the dose intended and that the liklihood and severity of side effects is reduced and ept to a minimum.
It is important so that no unnecessary healthy cells are given a high dose of radiation, and so that the tumour is given the full and effective dose of radiation that has been prescribed by the radiation oncologist. Treatment side effects may increase in severity if the patient moves, whilst the tumour would be receiving a lower dose than planned.
The treatment delievered each day was tailored to the specific position the patient was in when they had their CT. In order to make sure we are treating the correct area and avoiding OARS patients must be in a reproducible position for every treatment.
It is crucial that patients remain in the same position during each treatment to ensure as much accuracy as possible. By maintaining the single position which the treatment is planned around, therapists are able to minimize treating normal healthy tissue surrounding the intended target. If the patient moves however, there is a greater likelihood that normal tissue will be receiving a higher radiation dose than originally accounted for, and the target volume may consequently receive less than prescribed.
Reproducibility goes hand and hand with accuracy. Same daily prosition assures we are treating the correct volume everyday.
Reproducibility is important as we have to treat what was planned. If we dont, we could treat healthy tissues or not treat the tumour with the dose that was prescribed.
Because if the patient moves you would know longer be hitting the tumor and would instead destroy healthy cells and tissue.
It is vital a patient remain in the same position during each treatment so the xrays are given to the same correct place each time.
Immobilisation is important to create a reproducible position to limit dose to the surrounding tissues and structures which in turn will cause less side effects.
To be most effective, radiation therapy must be aimed precisely at the same target or targets each and every time treatment is given. The process of measuring your body and marking your skin to help your team direct the beams of radiation safely and exactly to their intended locations is called simulation.
So that the correct area receives the radiation. Before their treatment begins, radiotherapists make a plan to deduce how much radiation to give and also try their best to make sure that the normal cells receive little radiation.
Due to the movement of the beams the patient has to remain in the same place as to minimize the radiation to organs at risk, and to ensure that the tumor receives the planned and recorded dose.
When the linear accelerator, rotates around the patient it aims to deliver radiation to the area that needs to be treated.However, from the research ive done it has been emphasized tha surronding tissue can be negatively affected by the radiation dose.
Because plannig is being done in one postion, if the patient is moved during treatment then it will lose its target, and normal tissue will be exposed to radiation.
It is important for patients remain in the same position during each treatment to ensure that radiation is delivered with pinpoint accuracy and that other organs do not get exposed to radiation that they are not meant to be delivered to. It prevents the risk of tumour spreading or developing in other parts of the body.
Patient treatment based on positioning from planning scan. Target localisation and organ at risk avoidance dependant on accurate positioning.
In order to precisely treat the cancer area with the same dose every time. Also it can disburse radiation in the wrong area which can be lethal to a patients health.
It is important so we can localize the tumor and make sure we are treating the same target area during each treatment.
Because we are attempting to replicate a plan which was created for this patient in a specific position. If this position is not maintained, this may alter the dose distribution within the patient.
This allows for the radiation to be applied to the same area each time.
If a patient were to move during treatment, good cells would be damaged and the targeted location that is to be treated will not be able to receive proper treatment.
It is important because you have fixed spots that the radiation is being distributed to and if a patient moves the radiation will be distributed to the wrong areas. The treatment will have be redistributed.
To ensure that the beams are targeting the tumour everday and not the healthy tissues.
Reproducing the same position for each treatment fraction is important because radiotherapy fields are highly conformal nowadays with tight margins (about 2mm). Therefore, any change in patient positions could potentially lead to increased dose to organs at risk or a miss of the target volume.
Because the target volume used for the treatment planning will be the same and if there are large variations in patient setup there may be an increase dose to healthy tissue and/or vital organs.
To ensure that we are treating the correct area, covering the entire tumor volume and no overdosing surrounding health tissue.
Because the radiation treatment will be directed to specific area, target area. I would not want to use radiation on something that is not affected.
Because the radiation treatment will be directed to specific area, target area. I would not want to use radiation on something that is not affected.
TO ensure that we treating the cancer in the same way as prescribed in the treatment plan.
It is important that the patient remains in the same position during treatment so that the radiation is not delivered to healthy tissue instead. The radiation oncologist and dosimetrist work together to create an unique plan to deliver a prescribed dose to the tumor cells. If the patient were to move the radiation would be given to healthy tissue instead of the tumor.
To ensure the accuracy of the radiation beams and minimize surrounding normal tissue damage, thus ensuring the proper realization of the plan.
It is important as radiotherapy is targeted and precise to particular target volume to the milimetere. And if patient moves then normal tissue may also be exposed and goes againt ALARP optimisation as set by the IRMERE
To be able to capture a clear picture without distortion due to movements.
As rt is very precise and delivers to direct target site. Due to high energy if delivery to outside target can cause worsen of side effects and increase damage and chance of recurrence.
To ensure that you target the exact same area each time.
Fractionated treatment developed by physicists or dosimetrists who create treatment plan and dose histograms. Target the same area each time.
To reproduce the same set up is very important to help ensure that we are treating the correct area.
The patient is required to remain in the same position because we want to ensure that the beam trajectory covers the tumour completely while sparing the organs at risk.
So the same area is being treated every time which reduces the risk of killing healthy cells.
It is important because the treatment plan is based on the sim position. We want to ensure the patient can replicate that position so that the internal organs are as close to the position as the sim as possible. Radiation is targeting to where we wanted to increase therapeutic dose to target tissues and minimize dose to normal tissues.
A patients plan has been produced with them in an exact position that they were in when they were CT scanned. If we do to reproduce this position i. E. Because the patient is moving, the accuracy is reduced and the chance of missing the target volume and irradiating healthy tissue is increased.
To ensure the same area is being treated as per planned.
So that the treatment area can not be missed.
To ensure the set up is reproducible to facilitate accurate treatment delivery.
We need them in the same position so that we target the same area every treatment. We work in MM so a slight difference can make a large change in the dose distribution.
The treatment is planned based on the initial CT simulation. The patient is treated each day in the same position that they were in for the simulation. If the patient is not set up in the same position, then the treatment plan will be incorrect.
Reproducibility. Treatment stays within contours.
To make sure as much as possible that the treatment is going to the correct area everyday.
To make sure radiation treatment is being applied to tumor.
It is important that a patient remain in the same position during treatment because the plan is based off of the position of the patient, the immobilization devices used and the volumes that are drawn on the critical structures with the patient in the initial position. To deviate would change the accuracy of the treatment plan.
Because their cancer cells have to be targeted and there has to be a limit to their growth.
Because we plan the radiation treatment from the position they were in during their ct exam, it is important that they are in the exact same position everyday for treatment so the correct amount of radiation is being received to the tumor.
So that the radiation beam is only concentrated on the cancer it's treating. If they move, some vital organs may be permanently damaged.
To make sure the markers are aligned properly and only the specific area is targeted.
To make sure the markers are aligned properly and only the specific area is targeted.
To ensure that only the tumour/cancerous cells are being treated by the radiation. if the position is to change each session it is more likely that healthy tissue/skin will be affected by the radiation and the cancerous cells may be unaffected causing irrelevant radiation exposure.
So only the unhealthy tissue is aimed at from radiation and no other healthy tissue receives the high dose of radiotion.
To ensure that the area of interest is being treated the way the doctor intended it to be, and for exact replication.
In order for the radiation to be concentrated on the tumour which is in a particular position.
It is important for the patient to remain in the same position for each treatment so that the treatment is being delivered correctly and that the ptv, ctv and gtv are being covered.
It is important for patient to stay still during each treatment as it is design to focus on specific area. If patient is moving the treatment may reduce the outcome and put the patient under the health risk.
So that the radiation is only treating the unhealthy tissue and sparing the healthy normal tissues.
Reproducible, treating target area, avoiding OAR
Because reproducibility is key to a successful treatment. The tumors are targeted with little margin to spare. Not been I the same position means not targeting the tumor which also means healthy tissues might be treated instead of the target which is the cancer cells.
To ensure accuracy of treatment delivery.
The patient should remain in the same position as the radiation has to be targeted in a specific area and if the patient moves the radiation would not target the cancerous cells however damage healthy cells.
To ensure correct amount of dose is getting to the tumours and dose to normal tissue is minimised.
The patient must stay in the same place so then the beam can be concentrated to the tumour and no surrounding tissue is effected which shouldn't be if they were still. If the patient is not still the beam may effect the other tissues around the tumour which can cause death of cells which shouldn't have been killed due to the radiation.
If the patient is still the beam can to directed to the tumour and cancer cells effectively with minimal effect to the other cells around the tumour. However, if the patient is unable to keep still then the beam may effect the cells around the tumour which could have been safe from the radiation. This will cause these cells to die and their DNA will be changed or killed.
When the patient is receiving radiation treatment the cancer cells are killed which can sometimes effect the cells around the tumour but if they are not still the chances which the surrounding cells are going to be effected is increased. Therefore, the patient has to be still to allow their surrounding cells to have the best chance to stay alive.
EXTREMELY important. A patient must remain still because of how the angles and the doses of radiation given. We wouldn't want to radiate the wrong area of the body and miss the cancer cells completely.
To make sure the radiation is only getting to certain spots.
To avoid dosing surrounding normal areas which could lead to increased side effects possibly induce secondary tumour, to avoid underdosing the tumour.
So that the treatment is hitting the same spot all the time and it doesn't hit any of the healthy tissue.
Because their treatment and scans are set up very specifically to a certain position as different parts of the body receive different levels of radiation.
So you can get a clear xray and the most precise radiation treatment.
Radiation can be very harmful to human tissue when administered, so it's important to make sure a patient is in the exact same position with no movement for each dosage because administration of radiation to areas other than the tumor and treatment site can cause harm and damage and patient safety is the top priority.
So the radiation is getting to the tissue it needs to while not hurting other tissues.
So that the rays will face the same part of the body, without causing damage to the healthy cells.
Any movement in the patients position can affect the position of the PTV and the fire compromise the treatment, patient may consequently be over, or underdosed which will lead to the patient receiving less than or more than what was prescribed for him/her leading, and also maybe more exposure to surrounding normal tissues and organs which could increase radiotherapy toxicity to those healthy tissues leading to more side effects.
It is important that the patient remain in the same position during treatment because the radiation can be dangerous and also because the radiation has to be directed to specific spots of the body.
It is important that the patient remain in the same position during treatment because the radiation can be dangerous and also because the radiation has to be directed to specific spots of the body.
Patients treatment is designed to small margins to treat localised area. For this to happen, the plan needs to be recreated exactly and so need to be in the same position as CT scan. If patients are in a different position, geographic miss can happen which may result in radiotherapy incidents such as underdosing tumour or overdosing surrounding tissue.
It is important that the patient remain in the same position during each treatment to make sure they are receiving the maximal dose of the treatment.
To ensure that all cancer cells are destroyed and that healthy tissue doesn't receive unnecessary radiation.
This is so the treatment can be as accurate as possible, and therefore more effective. The more movement the patient has, the more normal tissue can be irradiated and even geographical miss.
It is important for the patient to be in the same position to make sure the total amount of radiation is given to the treatment site.
Because of critical structures.
Improve precision & to replicate the treatment plan.
So that the radiation is aimed at the tumor or cancer whilst minimizing the dose to surround tissue and cells.
Because the treatment is very precise to the area we are treatment, we have small margins added however we do not want to treat the patients surrounding healthy tissues as this will cause side effects and potential secondary cancer.
To insure the accuracy of the treatment.
To ensure accuracy of the treatment and protect the OARs/ deliver as minimum dose as possible to them.
To reduce radiation exposure to healthy cells.
It is important that way we can reposition the patient every day and that way we can treat the same area everyday.
So the radiation can be focus on the correct spot of the tumor. The radiation is very strong on a human body, also very toxic.
Particularly with new IMRT and VMAT treatments, higher doses are being delivered to smaller areas. The patient plan is prepared with a specific position in mind. Variations in movement could result in target misses. Also, critical structures could be affected, which could cause adverse consequences.
Treatment planned based on exact position. Must ensure the target is treated and to avoid treating critical structures. If the position in different, it will also change the attenuation of the beam depending on whether it is travelling through bone, tissue, or air and change the overall dose distribution.
Must be in the exact position as simulation in order to carry out plan and give the desired dose with minimal side effects.
Radiation therapy must be precisely aimed at the same area every time. In order to get the exact precision you need, having them in the same position every time is a necessity.
Each time the patient is treated, the same area must be treated in the same area. In order to get that precision, it helps that the patient be in the same position every time so we can get to that exact area each time.
So that the same dosage is distributed in the same area and place that it was done before. Also, we are only targeting that specific area, and therefore we do not want to hit any other area that does not need treatment.
As it improves the reproducibility and therefore accuracy of the treatment given.
To ensure that the planning target volume is sufficiently encompassed by the treatment field as planned and ensure healthy tissue is treated out of planned tolerances.
To ensure that the tumor receives the same amount of radiation from each angle and the whole tumor itself.
Patients have a radiotherapy plan created on the basis that the position the patient was in during their CT scan can be accurately reproduced each day for treatment. The radiation oncologist will create a target volume that is treated with radiation, and if the patient is not in the same position each day normal tissue can be treated which can cause radiation side effects. The target volume will also not receive the required dose, therefore not curing the patient.
Patients need to remain in the same position because the treatment process begins with the ct scan. Calculations and treatment plans are put together in accordance with the results. If the patient is not in the right position then the treatment process can not begin.
So as not to treat the wrong area which will harm the patient.
It is important for the patient to sit still during treatment because it is a safety precaution and can also mess up the treatment are.
To ensure that the tumor is receiving the correct dose of radiation according to the treatment plan while avoiding healthy tissue.
So the radiation does not affect areas that do not have cancer.
So the radiation is targeted to the affected area and protect the area that is not affected.
To ensure that the right area is being treated.
So they receive the treatment in exactly the same area each time.
As their are side effect after the treatment the person would feel vomiting, neasea and fatigue.
To get the same pattern of radiation along its path.
Planning is based on the position, so it is crucial for patients to remain in that position so adequate dose can be delivered to the target.
The radiation must reach the target.
It is critical for patients to be in the same position during each treatment as then the planned prescribed dose can be given to the patient accurately. If the position of the patient is not the same as planned, then unnecessary dose will be given to healthy surrounding tissues or even risk structures which could cause both short term and long term side effects. Dependent on the type of organs at risk (series or parallel) it could also cause permanent impairment.
So that the normal tissues doesn't receive the radiations.
Radiation therapy is highly localized modality of treatment. Using high doses of radiation to target specific areas where the disease is situated. It is very important for the patient to remain in the same position to decrease the variation of the area of dose deposition. We want to make sure that we are delivering dose to the same area each treatment and also sparing any critical structures or normal tissue that may be around the area of treatment.
As the treatment dose will be delivered according to the positiib of patient when inderwent simulation.
To ensure that the targetted tissues receive the correct dose and that the normal tissues do not receive excess dose.
So that the radiation dose hits the target area and not surrounding health tissue.
It is helpful for the patient to remain in the same position during treatment so we can accurately set them up with their xrays and pin point the tumor and target it.
Staying in the same position for each treatment really eliminates healthy tissue from being irradiated. Plans are drawn up specifically for each patient designed to treat a certain area. Holding very still during the treatment spares the surrounding tissue from getting in the field.
To target the same cells.
So that the same place is treated every time and the patient isn't exposed to unnecessary radiation.
To avoid healthy cells being dama by the radiation.
To ensure that the cancerous cells are being targeted and not healthy cells. Treating healthy tissue instead of of cancerous tissue negatively impacts normal tissue complications, which affects patients quality of life. It also negatively impacts the tumour control probability which affects the quantity of the patients life.
Therapy is done with movements made in millimeters. We have to have the patient in the exact same position every treatment so that we are radiating the tumor and not other healthy tissue.
So that we know we are accurately targeting the patient, the plan was based off the patient is a particular position and if the patient is not in that same position they will not correctly be treated based on their treatment plan.
Physics designed a plan for that specific reproducible set up and we want to limit dose to other structures that were contoured out of the BEV.
As the focus of the radiation beam is focused on the centre of the tumour mass. In order it ensure effective delivery and minimum damage to healthy tissues the patient needs to ensure they remain in the same position.
So that the receive the precise treatment each and every time.