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Terminology and its application to computer-aided data processing in digestive endoscopy.

Z Maratka·M Schapiro
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Abstract

Endoscopic word database systems are not standardized. An endoscopic word reference has been developed by the World Organization for Gastrointestinal Endoscopy. The suggestion is made to develop a standard software program for gastrointestinal endoscopy based on this system or one similar.

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Digestive SystemElectronic Data ProcessingEndoscopyHumansTerminology as TopicJournal Article

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Z Maratka, M Schapiro. 1990. Terminology and its application to computer-aided data processing in digestive endoscopy.. https://doi.org/10.1097/00004836-199004000-00003

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Late morbidity profiles in prostate cancer patients treated to 79-84 Gy by a simple four-field coplanar beam arrangement.

PURPOSE: To describe the frequency and magnitude of late GI and GU morbidity in prostate cancer patients treated to high dose levels with a simple three-dimensional conformal technique. METHODS AND MATERIALS: A total of 156 intermediate- and high-risk patients were treated between January 1, 1992 and February 28, 1999 with a simple four-field three-dimensional conformal technique to 79-84 Gy. All patients were treated with a four-field conformal technique; the prostate received 82 Gy and the seminal vesicles and periprostatic tissue 46 Gy. GI and GU toxicity was scored according to the Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer Late Morbidity Grading Scale and compared using Kaplan-Meier estimates. RESULTS: The late Grade 2 GI complication rate was 9% and 38% at 3 years for patients treated with and without rectal blocking, respectively (p = 0.0004). No Grade 3 late GI complications developed. The rate of Grade 2 late GU complications was 5%, 8%, and 12% at 12, 24, and 36 months, respectively. The Grade 3 late GU complication rate was 2% at 36 months. These differences were not statistically significant. CONCLUSION: The treatment method described is a simple four-field conformal technique that can be easily implemented in the general radiation community. A dose of 79-84 Gy can be safely delivered to the prostate, with a 9% rate of late Grade 2 GI, 12% rate of late Grade 2 GU, and 2% rate of late Grade 3 GU complications.

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