Gwynn Jelden

Computed tomography of the pancreas.

Computed tomography (CT) has proven useful in diagnosing inflammatory and neoplastic disease of the pancreas. Neoplasms of the pancreas produce enlargement of the gland and loss of surrounding fat planes. Acute pancreatitis also produces enlargement but correct diagnosis can be made with the clinical correlation. The usefulness of CT in chronic pancreatitis depends upon the state of the disease. Distinction between an inflammatory and a neoplastic mass is not possible on the basis of a CT scan alone. CT is also useful for needle guidance for aspiration biopsy of the pancreas.

Computed tomography of the thorax and abdomen; a preliminary report

The utility of computed tomography (CT) in the study of the anatomy, physiology, and pathology of the human body has been the subject of considerable interest since the introduction of CT scanning. The advent of a new prototype scanning device has made it possible to examine a variety of abnormalities in the abdomen and thorax in a manner not previously possible. This development permits a remarkable insight into the study of human disease in vivo.

The use of computed tomography for radiation therapy treatment planning.

In this treatment planning method, information from total body scans is fed into a radiation therapy treatment computer, the Artronix PC-12 system with 16K core. By providing an accurate profile of the patients anatomy, total body computed tomography may contribute greatly to the solution of complex treatment problems involving the head and neck, thorax and abdomen.

Half and Total Body Radiation for Carcinoma of the Prostate

Despite recent advances in the treatment of stage D carcinoma of the prostate many patients become refractory to all therapeutic modalities. Progressive and incapacitating pain is one of the most difficult symptoms to manage. Ten patients with severely symptomatic metastatic adenocarcinoma of the prostate have been treated with either single or sequential doses of half body radiation using 800 rad delivered by a Linac 10 mV linear accelerator. There were 15 courses of half body radiation delivered and a good to excellent response was noted in 11 instances. Results often were immediate and the duration of the response was variable. Treatment was well tolerated with no fatal complications. Half and total body radiation appears to offer significant palliation and its use with other forms of therapy warrants further investigation.

New Dimensions in Computed Tomography

Total body CT scanning may be utilized as a means of treatment planning for radiation therapy. Computer reconstruction of coronal and sagittal views from CT cross-sectional slices was accomplished by taking each of the cross-sectional images and placing them together in the specific order in the sequence in which they were scanned to form a cube. Once the cube is built, retrieving in the sagittal and coronal views is readily achieved.