CT treatment planning of the liver

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Medical Dosimetry; (USA)

OSTI ID:5468833

Lim, M ^[1]

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1. Tom Baker Cancer Centre, Calgary, Alberta (Canada)

The article deals with CT treatment planning of the liver to maximize the dose to the liver but minimize the dose to the right kidney, spinal cord, and bowels. (The left kidney is out of the field due to the oblique angles of the fields.) This is achieved by right kidney shielding reconstruction from multislice CT treatment planning and by the oblique angles of the fields. Without CT, it is not possible to utilize oblique fields to cover the liver. With conventional AP-PA fields, not only is the whole liver treated but also most of the right kidney, half of the left kidney, bowels and spinal cord. Tolerance dose to the kidneys is exceeded if adequate dose is delivered to the liver. Some new computer algorithms display a bird's eye view of the shielding but this paper presents for the first time, a technique for actual shielding reconstruction from multislice CT treatment planning for use by the radiation oncologist when shielding blocks are drawn on the simulator films.

• OSTI ID: 5468833
• Journal Information: Medical Dosimetry; (USA), Journal Name: Medical Dosimetry; (USA) Vol. 13:3; ISSN 0739-0211; ISSN MEDOE
• Country of Publication: United States
• Language: English

Related Subjects

550603* -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BODY
CENTRAL NERVOUS SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DIGESTIVE SYSTEM
DISEASES
DOSES
GASTROINTESTINAL TRACT
GLANDS
INTESTINES
KIDNEYS
LIVER
MEDICINE
NEOPLASMS
NERVOUS SYSTEM
NUCLEAR MEDICINE
ORGANS
PLANNING
RADIATION DOSES
RADIATION PROTECTION
RADIOLOGY
RADIOTHERAPY
SPINAL CORD
THERAPY
TOMOGRAPHY