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Biomedical subjects

J T Rhea

Publications and source records attributed to J T Rhea.

At least 73 records · Page 4Linked to original sources
PubMed1982

Determining the size of pneumothorax in the upright patient.

A simple measurement, the average interpleural distance (AID), which is obtained from three linear measurements, closely predicts true pneumothorax size as determined by radiographic thoracic gas volume measurement (mean variation -2.4 +/- 7.23 SD). The distribution of pneumothorax volume between the affected lung and the ipsilateral thoracic cage is variable and unpredictable. It was found that the average volume of pneumothorax that is accommodated by thoracic cage expansion (8%) is much less than previously reported. This appears to be the result of variable degrees of splinting and chest wall pain associated with pneumothorax.

Adolescent↗
PubMed1982

Radiographic evaluation of rib fractures.

A prospective study of 100 radiographs performed for possible rib fracture due to blunt trauma was conducted to determine if some of the films routinely obtained should be eliminated for medical or economic reasons. Of the 100 patients evaluated for fracture, 29 fractures were detected radiographically. The physical findings of fracture are seen to be nonspecific, and the clinical impression of the likelihood of fracture is unreliable. Therapy is symptomatic, aimed at relief of pain, and except for the complications of fractures, therapy does not differ significantly in patients with and without fractures. The complications of fractures that may influence therapy were seen in 13 of the 29 patients with fractures. All 13 complications were detected by the posteroanterior chest film while only three were seen on the rib films. Radiographs obtained solely to detect fractures are not warranted, but a posteroanterior chest film is necessary to assess pleural or pulmonary complication of chest trauma.

Costs and Cost Analysis↗
PubMed1982

Acute sinusitis.

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Acute Disease↗
PubMed1982

Colonic volvulus.

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Cecal Diseases↗
PubMed1982

Pulmonary edema.

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Heart Failure↗
PubMed1982

Appendicitis.

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Adult↗
PubMed1982

Croup.

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Croup↗
PubMed1981

An assessment of the contribution of chest radiography in outpatients with acute chest complaints: a prospective study.

The contribution of chest radiography to diagnosis was assessed in 1,102 consecutive patients with chest complaints at the Emergency Ward and Ambulatory Screening Clinic of a large hospital. The goal of this prospective study was to identify selective indications for chest radiography in this population with relation to the patient's age, the symptoms, and the results of physical examination. Although in patients over 40 years old chest symptoms are a sufficient indication for chest radiography, 96% of the patients below age 40 had a normal physical examination of the chest, no hemoptysis, and no acute radiographic abnormalities. If chest radiographs in the below-40 group had been limited to patients to patients with abnormal physical examinations and/or hemoptysis, 58% of the patients in that group would have been spared the examination. Under these conditions, 2.3% of the acute radiographic abnormalities in the entire population of patients under 40 would have gone undetected.

Adult↗
PubMed1981

The challenge of cost control.

Specific steps are suggested to cope with the variable costs of diagnostic examinations and film use. More importantly, fixed costs which constitute most of the expenses in radiology, should also be controlled. Since nonphysician salaries are a large part of fixed costs, factors which affect productivity must be investigated and understood. Unfortunately, current regulatory and reimbursement procedures thwart efforts to improve productivity and control expenses.

Cost Control↗
PubMed1980

The oblique view: an unnecessary component of the initial adult lumbar spine examination.

A retrospective study was undertaken to determine the diagnostic contribution of oblique views in 200 consecutive lumbar spine examinations done in adults. In four cases (two percent) there was a change in the radiographic interpretation when the oblique views were used for diagnosis. Considering the low diagnostic and therapeutic yield, as well as the gonadal radiation dose, the authors feel that the oblique view should not be a routine part of the initial lumbar spine examination in adults.

Adult↗