Jerry P. Petasnick

Contributions of Computed Tomography in the Staging and Management of Malignant Lymphoma

Pretreatment staging is considered essential in the management of patients with malignant lymphoma, particularly nodular sclerosing Hodgkin disease. The results of CT examination of 33 patients with malignant lymphoma are correlated with the results of lymphangiography, nuclide images of the liver and spleen, gallium citrate57 images of lymphoid tissue, and nuclide bone images. CT is least effective in the early clinical stages of malignant lymphoma because normal or minimally enlarged nodes are difficult to detect; CT is probably reliable enough to replace lymphangiography of gallium57 imaging in patients with advanced disease.

Attenuation Values in Computed Tomography of the Abdomen

Attenuation values were obtained from 50 CT examinations of the upper abdomen. A normal range of values, obtained for the organs in the upper abdomen, was compared with patient size and age. Rank ordering according to the mean attenuation values was also performed. The most significant finding was that the liver normally had the highest attenuation value of any of the viscera measured. When another organ in the upper abdomen had a mean value greater than that of the liver, this reflected severe systemic disease.

DentaScan: a new diagnostic method for evaluating mandibular and maxillary pathology.

Although computerized tomography (CT) is valuable for evaluating head and neck pathology, it can be suboptimal when evaluating the presence or extent of mandibular and maxillary involvement by tumor, infection, or other pathology. The presence of dental restoration artifact, CT gantry positioning problems, and the inability to obtain cross‐sectional images will diminish the accuracy of standard CT images.

Endometriosis simulating a soft tissue tumor of the thigh: CT and MR evaluation.

A histologically documented case of endometriosis within the deep musculature of the thigh is presented. Although occurrence of endometriosis outside the abdomen is rare, characteristic periodic exacerbation of symptoms at the time of menstruation should suggest the correct diagnosis.

The relationship of computed tomography, gray-scale ultrasonography and radionuclide imaging in the evaluation of hepatic masses.

Hepatic scintigraphy, gray-scale ultrasonography, and computed tomography have proven to be useful in the initial detection and evaluation of hepatic masses. These studies appear to be complimentary since each provides information not available from the others. Hepatic scintigraphy is currently the method of choice for the initial evaluation of the liver for mass lesions as it is easily performed, relatively inexpensive, and affords detectability of intrahepatic mass lesions at least as great as that of ultrasonography or computed tomography. When a definite or suspected abnormality is seen by hepatic scintigraphy, computed tomography or ultrasonography may be helpful in providing better anatomic definition or clarification of the nature of the abnormality. The choice between these latter two modalities depends on the type of scanning equipment available and the observers experience with each method.

Hypernephromas with Parasitic Blood Supply Derived from the Superior and Inferior Mesenteric Arteries

Three cases of hypernephroma in which the tumor blood supply was obtained from the inferior or superior mesenteric artery are presented. In each case, the origin of the blood supply was demonstrated by selective arteriography. Correlation of arteriographic and surgical findings indicates that the demonstration of parasitic blood supply from the mesenteric arteries is a reliable sign that the hypernephroma has extended beyond the renal capsules and has invaded the mesentery of the colon.

Computed Tomography of the Abdomen: Initial Experience

Computed tomography has provided a new dimension in the roentgenologic evaluation of the abdomen. Normal structures not visible on conventional examinations are clearly identified. Abnormalities are recognized by their alterations in anatomic form or by their effect on tissue absorption values. Our early experience suggests that in the abdomen computed tomography will be most valuable in detecting lesions in those sites least accessible to conventional roentgenographic methods such as the liver, spleen, pancreas and retroperitoneum.

The Radiology of Joint Disease. Saunders Monographs in Clinical Radiology, Vol. 2

Read more and get great! Thats what the book enPDFd the radiology of joint disease saunders monographs in clinical radiology v will give for every reader to read this book. This is an on-line book provided in this website. Even this book becomes a choice of someone to read, many in the world also loves it so much. As what we talk, when you read more every page of this the radiology of joint disease saunders monographs in clinical radiology v , what you will obtain is something great.