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Biomedical subjects

B L Carter

Publications and source records attributed to B L Carter.

27 records · Page 2Linked to original sources
PubMed1977

Use of body scanner in radiotherapy treatment planning.

CT body scans obtained on 98 patients before, during, and after radiotherapy were evaluated for their utility in radiotherapy treatment planning and in follow-up after radiotherapy. Twenty-two patients were studied after irradiation. Four received additional treatment, and continuing or planned treatment was withheld from another four on the basis of CT data. Tumor extent was clearly delineated on CT scan in 48/76 cases (63%), suggestive in 25/76 (33%), and not seen in only three (4%). Utilizing CT data relative to all other available tests, in 75 patients, total treatment volume was altered in 34 (45%), tumor coverage was marginal or inadequate in 35 (47%), and volume of normal tissue irradiated was changed in 34 (45%). CT scan data was judged essential for treatment planning in 41, or 55%, of patients studied. Unsuspected areas of tumor involvement were seen in 32 of 75 cases (43%). Use of the CT scan as a patient contour for radiotherapy treatment planning and alternative techniques for inputting the CT data to treatment planning computers are discussed. A simple inexpensive device to accomplish this is described. Speculations are made regarding the impact of CT scanners on transverse axial tomography units and treatment simulators as well as the potential application of the technique in brachytherapy dose computation.

Abdominal Neoplasms↗
PubMed1977

Computed tomography of the skull base.

By applying a wide window to computed tomography (CT) images, excellent detail of the skull base has been obtained. This technique has been apllied to lesions involving the sellar, parasellar, sphenoid wing, petrous bone, clival, and foramen magnum regions. Thus, CT has proved to have an additional dimension in the delineation of pathology.

Humans↗
PubMed1977

Neck and mediastinal angiography by computed tomography scan.

CT scanning of the neck and upper mediastinum is a valuable tool in the differential diagnosis of soft-tissue tumors. Visualization of the major vessels in the neck, which aids in the study, can be accomplished by a rapid intravenous drip infusion technique during the actual scanning, a new approach to contrast enhancement.

Angiography↗
PubMed1977

Computed tomography in spinal dysraphism.

Computed tomography of the spine has been used to evaluate patients with spinal dysraphism. With this technique, the nature of soft-tissue masses can often be correctly diagnosed and the underlying bony anomalies clarified.

Adult↗
PubMed1976

Computed coronal tomography.

A method for obtaining coronal scans of the cranium is described in which a scanner with a tilting gantry is used. Computed coronal tomography is especially useful in the high convexity area and in the suprasellar and foramen magnum regions.

Computers↗