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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-1195
DTSTART:20080512T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260423T023726Z
LAST-MODIFIED:20080509T141801Z
LOCATION:1335 Health Sciences Learning Center (HSLC) (refreshments at 
 3:30)
SUMMARY:Radiation Therapy of Moving & Deforming Patients\, Medical Phy
 sics Seminar\, Katja M. Langen\, Ph.D.\, M.D. Anderson Cancer Center-O
 rlando\, Orlando\, Florida
DESCRIPTION:The patient anatomy that is used for treatment planning pu
 rposes is not necessarily identical to the patient's anatomy during tr
 eatment. Organs move in between treatment fractions and during the tre
 atment itself. Patients are non-rigid bodies and deform randomly or sy
 stematically. An understanding of the dosimetric impact of motion and 
 deformation is desired but challenging.<br>
\n<br>
\nRepeat in-room im
 aging such as Tomotherapy's megavoltage CT imaging can be used to gain
  an understanding of the impact of patient deformation. However\, an a
 ssessment of the impact on the cumulative dose distribution requires d
 eformable image registration techniques. To quantify the dosimetric im
 pact of target motion during radiation delivery requires real time mot
 ion data and a technique to synchronize the dose calculation with this
  data. <br>
\n<br>
\nIn this presentation current research efforts at 
 MD Anderson Orlando to assess the dosimetric uncertainties due to moti
 on and deformation will be discussed. 
URL:https://www.physics.wisc.edu/events/?id=1195
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