Radiology

Rösch, Josef; Antonovic, Ruza; Trenouth, Roland S.; Rahimtoola, Shabudin H.; Sim, David N.; Dotter, Charles T.

doi: 10.1148/119.3.513pmid: 935382

Comparison of sequential large film coronary angiograms was performed for 58 patients with coronary artery disease, and no coronary surgery, to determine the relationship between the location, type, and degree of stenoses and their tendency to progress. Of 230 stenoses, 76 (33%) showed progression and 154 (67%) remained stable on the follow-up studies. Progression occurred in 38 (66%) patients. A statistically significant higher tendency to progress was found with tubular stenosis with ulcerating plaques (100%) and stenoses with collateral circulation (58%). A significant linear trend for progression was also found with the increasing number of risk factors of coronary disease. The above-average progression tendency of stenoses of the right coronary artery, tubular irregular stenoses, and Grade 2 stenoses, was not statistically significant. Index terms Coronary angiography Coronary arteries, stenosis Copyrighted 1976 by the Radiological Society of North America, Inc.

Higgins, Charles B.; Wexler, Lewis; Silverman, James F.; Hayden, William G.; Anderson, William L.; Schroeder, John H.

doi: 10.1148/119.3.521pmid: 935383

Eleven of 21 consecutive patients with Prinzmetal angina (PMA) exhibited no significant fixed stenoses of the coronary arteries. Spontaneous coronary arterial spasm was demonstrated in 3 patients. Ergonovine maleate produced near-total occlusion of a major vessel in 3 of 4 other patients with PMA, but did not provoke spasm in 10 without PMA. The current study documents spasm as the mechanism of myocardial ischemia in some patients with normal coronary arteries and provides initial and favorable diagnostic results with provocative pharmacoangiography in this entity. Index terms Angina pectoris Coronary angiography Coronary vessels Ergonovine Copyrighted 1976 by the Radiological Society of North America, Inc.

Berk, Robert N.; Loeb, Peter M.; Cobo-Frenkel, Adriana; Barnhart, James L.

doi: 10.1148/119.3.529pmid: 947095

The biliary excretion and choleretic effects of iodoxamate (Cholevue) and iodipamide (Cholografin) were compared in unanesthetized dogs with biliary fistulas in order to assess the potential of the two contrast agents for use in intravenous cholangiography. For any equimolar infusion rate, more iodoxamate was secreted in the bile than iodipamide. The volume of bile flow (choleresis) associated with the excretion of iodoxamate and iodipamide was the same. At the constant basal bile flow maintained in these studies, there was no difference in the maximum biliary concentration of the two compounds. With the presently recommended doses, it is unlikely that iodoxamate will offer a striking improvement over iodipamide for intravenous cholangiography in patients with normal liver function. Index Terms Cholangiography, contrast media Contrast Media, comparative studies

Michal, John A.; Nelson, James A.; Ruben Koehler, P.

doi: 10.1148/119.3.537pmid: 132679

Fractionated administration of iopanoic acid (Telepaque) has already been shown to resuit in superior visualization of the gallbladder. A similar study was undertaken to evaluate the effect of fractionation when iocetamic acid (Cholebrine) is employed. It was found that the gallbladder is opacified better if Cholebrine is given in a single dose. Index Terms Cholecystography, contrast media Contrast Media

Yune, Heun Y.; Klatte, Eugene C.

doi: 10.1148/119.3.539pmid: 935384

A review of 301 consecutive abdominal arteriograms given to patients suspected of having occlusive arterial diseases was conducted. In 99 patients, 35% or more stenosis of the renal artery was demonstrated; of these, 40 showed demonstrable collaterals to the ischemic kidney. The adrenal and lumbar arteries contributed four times more frequently than the periureteric arteries to the collateral circulation. Characteristic ureteral notching from the periureteric artery collateral was noted in only 50% of the cases. Intrarenal collaterals were observed and appeared to contribute to the preservation of the size and function of the affected kidney. Index Terms Kidneys, blood supply Kidneys, size Renal angiography Renal arteries, stenosis

Scott, Peter L.; Yune, Heun Y.; Weinberger, Myron H.

doi: 10.1148/119.3.547pmid: 935385

A case of classical Page kidney with emphasis on radiographic findings is presented. Onset of hypertension following trauma associated with angiographic findings of attenuation, splaying and stretching of the intrarenal vessels on the arterial phase with a definite delay in transit time through the parenchyma and a non-homogeneous nephrogram should make the diagnosis of Page kidney or constricting subcapsular mass the most logical consideration. Index Terms Hypertension Kidneys, hemorrhage Kidneys, wounds and injuries Veins, renal

Bonner Guilford, W.; Scatliff, James H.

doi: 10.1148/119.3.549pmid: 935386

Silicone spheres were used for the transcatheter arterial embolization of dogs. This material successfully stops splenic hemorrhage in the lacerated organ, and also reduces spleen size. Use of silicone emboli to produce in situ splenectomy is not associated with morbidity or mortality in dogs. The authors discuss the value of using these methods in treating the high-surgical-risk patient. Index Terms Embolism, therapeutic Spleen, hemorrhage Spleen, wounds and injuries Copyrighted 1976 by the Radiological Society of North America, Inc.

Park, Chan H.; Rothermel, Franklin J.; Judge, David M.

doi: 10.1148/119.3.554pmid: 935387

An unusual egg-shell calcification was found in the thyroid gland on a routine radiograph. The 99m Tc-pertechnetate thyroid image showed a cold nodule in the inferior pole of the left lobe which proved to be mixed papillary-follicular carcinoma. There was no characteristic pattern of calcification in the thyroid gland which would permit precise diagnosis of cancer; however, psammo-matous calcification frequently occurs in papillary carcinoma of the thyroid. Index Terms Thyroid, calcification Thyroid, neoplasms Thyroid, radionuclide studies

Ingemansson, Stig; Lunderquist, Anders; Holst, Jens

doi: 10.1148/119.3.555pmid: 935388

A glucagon-secreting tumor was seen in the tail of the pancreas in a 69-year-old man. The diagnosis was made by radioimmunoassay of the peripheral blood and the tumor was localized by pancreatic angiography and selective catheterization of the pancreatic veins followed by hormone assay. This technique may be a valuable adjunct in the study of endocrine tumors of the pancreas. Index Term Pancreas, neoplasms

Diaconis, John N.; Weiner, Charles I.; White, Dennis W.

doi: 10.1148/119.3.557pmid: 935389

Chylothorax secondary to trauma of the thoracic duct is uncommon. "Stress" thrombosis of the subclavian vein is a better recognized entity. The occurrence of both in the same patient is documented and their relationship discussed. Index Terms Pleura, fluid Thoracic duct Thrombosis, venous Veins, subclavian