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Biomedical subjects

E Korngold

Publications and source records attributed to E Korngold.

9 recordsLinked to original sources
PubMed1984

Sonographic assessment of renal length in normal children.

Renal length was measured from normal real-time sonograms of 203 pediatric patients and graphed to provide a "growth chart" of normal renal size vs. age. Mean renal lengths are reported for each year of age. For children older than 1 year, the regression equation is: renal length (cm) = 6.79 + 0.22 X age (years). For babies younger than 1 year, the equation is: renal length (cm) = 4.98 + 0.155 X age (months).

Adolescent↗
PubMed1979

The selection of patients for excretory urography.

Symptoms, signs, and laboratory findings that indicated excretory urography in 1,622 patients, were compared with the radiographs. The chance that an indication would be associated with demonstrable disease was calculated. No "low-likelihood" indications could be identified. Elimination of the urograms obtained for any of the indications would not have been possible without simultaneously precluding detection of many diseased patients. The monetary cost of case-finding was low, and the efficacy of patient referral high.

Boston↗
PubMed1979

The barium enema; evidence for proper utilization.

A group of 1,041 patients was studied in an attempt to identify symptoms, signs, or laboratory findings (disease indicators) associated with either a high or low yield of abnormal barium enemas. A specific search was undertaken for subgroups with one or more statistically significant indicators of large bowel disease. If enemas were performed only for statistically significant indicators (fever, positive stool benzidine, rectal or abdominal mass, low hematocrit) or indicators of clinical importance (weight loss, constipation, diarrhea, etc.) only 13% of examinations would be eliminated. At the same time, however, 10% of patients with gastrointestinal disease would be missed.

Adult↗
PubMed1976

Quantitative radionuclide angiocardiography: detection and quantitation of left to right shunts.

In 105 patients defection and quantitation of left to right shunts was performed using quantitative radionuclide angiocardiography. The radionuclide angiocardiograms were acquired and analyzed by a gamma camera interfaced to a digital computer system. Pulmonary to systemic flow (Qp/As) ratios were calculated by analysis of pulmonary time-activity histograms using a gamma variate model. All patients were studied with cardiac catheterization, left ventricular angiocardiography and radionuclide angiocardiography. The radionuclide method allowed precise detection and quantitation of left to right shunts with a Qp/Qs ratio of 1.2 to 3.0. There was good agreement between the Ap/As ratio calculated by oximetry at cardiac catheterization and radionuclide angiocardiography (r = 0.94). The information gathered with this nontraumatic method appears sufficiently reliable to be used in the management of patients.

Adult↗
PubMedDate not supplied

The composition of the radiologic report.

In order to understand and evaluate fully the composition of the radiologic report, an experiment was performed in which eight readers each read the same 100 chest radiographs. The reports were dissected into individual statements, each of which was analyzed for accuracy, statement type (descriptive or etiologic), confidence, and specificity. In addition, each report was evaluated for stylistic factors of succinctness, orderliness, and the use of supplemental comments. Detailed analysis showed the radiologic report to be a series of largely descriptive statements in which confidence level, specificity, and orderliness were associated with the presence of errors in film interpretation. These factors can serve as important markers for identifying error-laden films. The use of specific, etiologic diagnoses in these film readings was limited. The composition of the report was not related to the length of radiologic training beyond the first year of residency. The implications of these findings concerning report composition in light of present day radiologic practice and new, automated radiologic reporting systems were discussed.

Diagnostic Errors↗