Radiotherapy Planning for

Esophageal CancersParag Sanghvi, MD, MSPH

9/12/07Esophageal Cancer Tumor Board

MLC & Varian Trilogy

Target

Organ-at-risk

Courtesy of M. Fuss

3D-CRT

Courtesy of M. Fuss

IMRTA highly simplified

graphic

Courtesy of M. Fuss

IMRT

These pencil beams “see” only the target

No organ-at-risk radiation exposure

High reward no/low penalty Courtesy of M. Fuss

IMRT

These pencil beams “see” more target than

organ-at-risk

Reward and penalty

Courtesy of M. Fuss

IMRT

This pencil beams “sees” less target than

organ-at-risk

Low reward/high penalty Courtesy of M. Fuss

IMRT

Courtesy of M. Fuss

IMRT

Courtesy of M. Fuss

3D-CRT IMRT

Improved tumor conformal dose planning and superior normal tissue sparing

Courtesy of M. Fuss

IMRT in Esophageal Cancer

3 D vs. IMRT

IMRT

IMRT

IMRT

IMRT