Life Sciences Commons^™

Digital Radiography: A Review, David J. Kastan, Laurens V. Ackerman, Peter J. Feczko, Gordon H. Beute

Henry Ford Hospital Medical Journal

The fully digital radiology department remains a radiologist's dream. The technology necessary for implementation does not yet exist other than in prototype form. When the technology catches up with the radiologist's ideas, many new capabilities will exist. Electronically stored images will be available for viewing wherever a computer terminal exists. The problem of film loss would be nonexistent. Images could be quickly transmitted for interpretation via microwave networks to sites far removed from where they are acquired. Patient radiation exposure would decrease. Computers would help decrease perception errors and would assist in image interpretation. It may be ten years before …

Preliminary Experience With Digital Subtraction Angiography In Cardiac Evaluation, Matthew W. Burke, P. C. Shetty, Rajinder Sharma, James F. Brymer, Fareed Khaja

Henry Ford Hospital Medical Journal

iVe report our initial experience using digital subtraction angiography (DSA) techniques for cardiac evaluation. DSA of the heart may be performed with intravenous or right atrial injection of contrast medium (IVDSA) and with left ventricular or aortic root contrast injection (lADSA). The right ventricle and the atria are best demonstrated by IVDSA, while the left ventricle and coronary arteries are best demonstrated by lADSA. The advantages and disadvantages of DSA ofthe bean are discussed. Present equipment limitations restrict the routine use of cardiac DSA, but these should be overcome with advances in technology.

Artificial Intelligence And Image Processing, Laurens V. Ackerman, Matthew W. Burke

Henry Ford Hospital Medical Journal

The evolution of artificial intelligence since the 1950s is discussed, especially as it is being applied in radiology to image processing. Developments in artificial intelligence are now being used to provide a new approach to image processing. Initially, the computer dealt with numeric representations using languages such as FORTRAN and BASIC. Now symbolic languages such as LISP and PROLOG have expanded the use of the computer into nonnumeric symbolic reasoning that is just being applied to image understanding. This paper explains the new languages and their application to image understanding.

Front Matter

Henry Ford Hospital Medical Journal

No abstract provided.

The Development Of Multispecialty Group Practice At Henry Ford Hospital Through The Years, Bruce W. Steinhauer

Henry Ford Hospital Medical Journal

No abstract provided.

Electron Microscopic Examination Of Various Types Of Ancient Specimens, Jeanne M. Riddle

Henry Ford Hospital Medical Journal

No abstract provided.

In Defense Of The Pickwickian Syndrome, Howard Markel

Henry Ford Hospital Medical Journal

No abstract provided.

Metastatic Bronchogenic Carcinoma Simulating Osteoarthritis, David Wendt, Paul Kvale

Henry Ford Hospital Medical Journal

No abstract provided.

Leiomyosarcoma Of The Heart: A Twenty-Year Cure, Gerald Fine, B. Usha Raju

Henry Ford Hospital Medical Journal

Excision of a predominantly intracavitary right atrial tumor, which mimicked a number ofother clinical disorders, effected a 20-year cure. Microscopic, ultrastructural, and immunocytochemical characteristics of the tumor were those of smooth muscle; cellular anaplasia, mitotic activity and tumor infiltration of the auricular myocardium indicated malignant neoplasia, a leiomyosarcoma. Distribution of the tumor was consistent with its origin from the auricular endocardium.

Central Pontine Myelinolysis In A Patient With Adrenal Insufficiency, John E. Brunner

Henry Ford Hospital Medical Journal

Central pontine myelinolysis is a demyelinating process that has occurred in association with rapid correction of hyponatremia. Presented here is the case of a patient who had adrenal insufficiency and who experienced signs of central pontine myelinolysis after rapid correction of severe hyponatremia (28 mEq/L of sodium administered in the first 24 hours, initial serum sodium level 97mEq/L). Sustained hyponatremia and the use of intravenous contrast material after hyponatremia correction are discussed as possible risk factors in the development of central pontine myelinolysis.

Diagnosis Of Hepatic Portal Venous Gas By Computed Tomography: Role Of Intravenous Contrast Material, Allan M. Haggar, Michael A. Sandler, Martin L. Gross, Beatrice L. Madrazo

Henry Ford Hospital Medical Journal

We describe a case of hepatic portal venous (HPV) gas. The diagnosis was assisted by findings of computed tomography (CT). The HPV gas resulted from a diverticular abscess in a patient who had a stable clinical course. If the possibility of HPV gas exists, scanning without intravenous administration of contrast material should be performed. If postcontrast scans alone are obtained, the opacified portal blood may mask small amounts of HPV gas, as was true in this case. Also, postcontrast scans can easily distinguish HPV gas from air within the biliary tree if findings of precontrast scans are equivocal.

Adverse Interactions Of Drugs In Critical Care Patients, Barbara Zarowitz, William Conway, John Popovich Jr.

Henry Ford Hospital Medical Journal

No abstract provided.

The Invalidity Of Monitoring Transcutaneous Oxygen Tension In Patients Who Have Chronic Renal Failure, John R. Armstrong, Thomas W. Kreps, William A. Conway, Francis Dumler, John Popovich Jr.

Henry Ford Hospital Medical Journal

We assessed accuracy of monitoring transcutaneous oxygen tension (PtcO2) in patients with chronic renal failure (CRF). Sixteen stable individuals undergoing chronic maintenance hemodialysis were studied. Correlations between simultaneously determined PtcO2 and arterial oxygen tension (PaO2) were made both before and during dialysis. Comparisons were made with a group of 22 consecutive patients in whom respiration was mechanically assisted, who were hemodynamically stable (urine output greater than 30 mL/hour, pulse less than 130 beats/min, and mean arterial blood pressure greater than 80 mm Hg in the absence of pressor agents), and who had normal renal function.

Among CRF patients, the correlation …

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Dr Frank J. Sladen: The Osler Connection, Richmond W. Smith Jr.

Henry Ford Hospital Medical Journal

No abstract provided.

The Strange Story Of Jay Mclean, The Discoverer Of Heparin, Conrad R. Lam

Henry Ford Hospital Medical Journal

Since 1939, the use of heparin has become widespread in the prevention of postoperative thrombosis and embolism and is the basis for modern open-heart surgery. What is not generally known is the story of Jay McLean, the second-year medical student at Johns Hopkins who is given credit for the original discovery. McLean's first scientific publication concerning the use of heparin does not contain the word "heparin," and not until 25 years later did McLean publish a short paper about heparin. Some personal letters and other research have indicated a checkered career. He was trained as a surgeon in the Halsted …

Playing With Medicine: A Historical Perspective, William H. Beierwaltes

Henry Ford Hospital Medical Journal

No abstract provided.

A Graphical Aid To Medical Decision Making, William A. Benish

Henry Ford Hospital Medical Journal

Given knowledge of a test's sensitivity and specificity, physicians may use Bayes' theorem to appropriately modify their initial assessment of the likelihood of disease subsequent to obtaining a positive or negative test result. A graphical representation of Bayes' theorem was constructed in order to provide a simple tool to aid in the selection and interpretation of diagnostic tests.

Editorial: In Defense Of Historians, Conrad R. Lam

Henry Ford Hospital Medical Journal

No abstract provided.