CT scanning for radiation therapy treatment planning of hepatoma

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Int. J. Radiat. Oncol., Biol. Phys.; (United States)

DOI:https://doi.org/10.1016/0360-3016(85)90259-7· OSTI ID:5379392

Rostock, R A; Fishman, E K; Order, S E

One hundred forty-five patients with hepatoma had CT scanning for radiation therapy treatment planning. In order to demonstrate the anatomical distortions that occur with hepatoma and its effect on treatment planning, a control group of 50 colorectal cancer patients with normal livers was analyzed for comparison. The objectives of planning were to deliver as homogeneous a dose to the whole liver as possible and not to treat more than one of two functional kidneys or more than one-half of both functional kidneys. Conventional AP/PA portals were defined by physical examination, intravenous pyelogram, and bowel gas patterns at simulation and were found to be inadequate for the treatment of 76% of patients with hepatoma and 10% of patients with normal livers. Because the distortion of the liver in hepatoma in relationship to the kidneys required portal modification in 76% of hepatoma cases; 39% required oblique planning, 24% AP/PA, 20% PA and left lateral portals, and 17% required 4-field, 3-field or other plans in order to meet the treatment planning objectives. The authors concluded that all patients receiving radiation therapy to the liver for hepatoma require CT scanning for optimum radiation therapy treatment planning because of the hepatic distortion that occurs in hepatoma and the requirements of renal tolerance.

• Research Organization: Johns Hopkins Hospital, Baltimore, MD
• OSTI ID: 5379392
• Journal Information: Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 11:7; ISSN IOBPD
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
550603 -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ANATOMY
BODY
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DIGESTIVE SYSTEM
DISEASES
ELECTROMAGNETIC RADIATION
GLANDS
HEPATOMAS
IONIZING RADIATIONS
LIVER
MEDICINE
NEOPLASMS
NUCLEAR MEDICINE
ORGANS
PATIENTS
PLANNING
RADIATIONS
RADIOLOGY
RADIOTHERAPY
THERAPY
TOMOGRAPHY
X RADIATION