Computed tomography in radiation therapy treatment planning of hepatic metastases

Robert A. Rostock, Elliot K. Fishman, Eva S. Zinreich, Ding Jen Lee

Research output: Contribution to journalArticle

Abstract

Forty-four patients with symptomatic hepatic metastases from a colon primary had CT prior to radiation therapy treatment planning. A control group of 44 patients with no evidence of liver metastases 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 one kidney or more than one-half of both kidneys. Conventional anteroposterior/posteroanterior portals were found to be inadequate for the treatment of 60% of patients with metastases and 10% of patients with no liver involvement. Among the metastatic group, 50% required oblique planning, 40% anteroposterior/posteroanterior and 9% posteroanterior and left lateral portals to meet the treatment planning objectives. Among the control group of patients with no liver metastases, only 9% required oblique portals and 8% could not be treated because of left hydronephrosis or a solitary right kidney. It is concluded that all patients receiving radiation therapy to the liver for symptoms or prophylaxis require CT for optimum radiation therapy treatment planning.

Original languageEnglish (US)
Pages (from-to)755-759
Number of pages5
JournalJournal of computer assisted tomography
Volume9
Issue number4
DOIs
StatePublished - Jul 1985

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Keywords

  • Carcinoma
  • Computed tomography
  • Liver
  • Metastatic
  • Neoplasms
  • Treatment planning

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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