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Biomedical subjects

A Laugier

Publications and source records attributed to A Laugier.

At least 73 records · Page 4Linked to original sources
PubMed1977

[Technical record in radiotherapy (author's transl)].

The term "technical record in radiotherapy" is used to describe collected information relative to treatment using radiation. The subject of this session of the chapter of Radiotherapy of the Société Française de Radiologie was the intrinsic functions of this record and its extrinsic limitations. The extreme diversity of the current state of the record is a known fact. A majority of participants express the desire for uniformisation of the collection of data or even, as a second stage, to have a common record. A library of technical records was set up under the responsibility of the Centre Georges-François Leclerc at Dijon (J.C. Horiot). One broad conclusion was seen to emerge: the creation of a minimum common record including essential information to which could be added the more specific data of each radiotherapist and at each time of use. Prior agreement will be necessary with regard to the standardisation of apparatus and the expression of the dose. This session was of necessity merely a reflection of future needs and it is to be hoped that the good will which was obvious during the course of the discussion may produce concrete results in the months to come.

France↗
PubMed1975

[Use of photogrammetry for taking body contours in radiotherapy].

A photogrammetric method for taking outline of patients in radiotherapy is described in details. Using only one couple of photographs, this fast and very precise process may restitute a great deal of transversal or longitudinal cross-sections, even after a long time because photographic stocking of information. An automatic numeric lecture of the outline may directly enter a computer for dosimetry.

Humans↗
PubMedDate not supplied

[Locoregional recurrence of adenocarcinomas of the rectum treated with irradiation combined with or without excision surgery].

PURPOSE: Retrospective study to analyze the results of external beam radiation treatment with or without surgery for loco-regional recurrence of adenocarcinoma of the rectum following previous surgery without pre- or post-operative radiotherapy. PATIENTS AND METHODS: Between March 1973 and November 1991, 211 patients with loco-regional recurrence of rectum cancer were treated with external beam radiation treatment. Radical surgery was the only initial treatment modality. Surgical resection of local recurrence was done in 36 patients and only 17 patients could undergo complete resection. Forty-seven patients underwent radiotherapy (RT) combined with surgery and 164 received external beam radiation treatment alone to a mean total dose of 46 Gy. RESULTS: Among the 151 patients whose recurrence was revealed by pain, 64 (42%) were considered to have a complete symptomatic response after loco-regional treatment with radiosurgery or RT alone. The mean duration of response was 12 months. The 3-year overall survival rate was 16%. Five prognostic factors decreased the overall survival rate in multivariate analysis: high age, sex (male), concomitant distant metastasis, no tumor resection, and low total radiation dose with external beam radiation treatment alone. The 3-year overall survival rate for patients with completely resected recurrences was 39%. CONCLUSION: External beam RT treatment can only be considered a palliative symptomatic treatment. New techniques of early detection of local recurrence and new combined modalities approaches (radiation sensitizers or intra-operative radiotherapy) with surgical resection in some favorable cases should be studied.

Adenocarcinoma↗