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Biomedical subjects

D W MacEwan

Publications and source records attributed to D W MacEwan.

At least 37 records · Page 2Linked to original sources

Canadian diagnostic radiology manpower 1982.

By accurate count there were 1 417 Canadian diagnostic radiologists in active practice in 1982 compared with 1 293 in 1977. Between 1966 and 1975 an average of 69 were certified each year by the Royal College of Physicians and Surgeons of Canada, while between 1970 and 1979 the number had fallen to an average of 59, with about four more entering practice following certification in Quebec or by recognition of American or British qualifications. The age of radiologists has risen and a larger proportion are women. Comparison with other data indicates that Canadian radiology manpower is now in balance. Continuation of manpower monitoring is necessary as a potential shortage of radiologists may occur because of the reduced number being trained, of physician immigration restrictions, of moderately less career-time in the work force on the part of women radiologists, of further advances in imaging technology, and of the demands of interventional radiology.

Canada↗

Radiology workload system for diagnostic radiology.

A unit measurement system for diagnostic radiology has been prepared. The basic data were collected in fifteen small, medium and large sized Canadian hospitals. Detailed measurements were made of the technologists' time for performing radiographic examinations. Analysis of work activity established the time contribution for each category of support staff. The basic data were tested in a field trial of 42 Canadian hospitals and found to be reliable. Comparisons with other systems, particularly in Finland and Scotland, revealed a great similarity of results. A method of productivity analysis was developed. The study will be likely to form the basis for national reporting of work in Canadian radiology departments.

Canada↗

Radiology workload system for diagnostic radiology. Productivity enhancement studies.

A unit measurement system for diagnostic radiology has been prepared. The basic data were collected in fifteen small, medium and large sized Canadian hospitals. Detailed measurements were made of the technologists' time for performing radiographic examinations. Analysis of work activity established the time contribution for each category of support staff. The basic data were tested in a field trial of forty-two Canadian hospitals and found to be reliable. Comparisons with other systems, particularly in Finland and Scotland, revealed a great similarity of results. A method of productivity analysis was developed. The study will be likely to form the basis for national reporting of work in Canadian radiology departments.

Efficiency↗

1979 diagnostic radiology services in the province of Manitoba.

This detailed study of a stable population compares the number and type of diagnostic radiology examinations, facilities, equipment, personnel and financial allocations for the years 1974 and 1979. The data have been obtained from $12.28 to $25.90. A computed tomography service began in 1977. The 1979 genetically significant radiation dose to the population is calculated to be 260 microgray. Continuing growth in computed tomography and diagnostic ultrasound with changing referrals for nuclear medicine are not yet ready for analysis.

Humans↗

Radiology services on a tight budget.

Radiology managers are caught in the economic squeeze between rising costs of salaries, equipment and services on one hand, and government fiscal restraint on the other. Diagnostic imaging expenditures of the Health Sciences Centre in Winnipeg, Manitoba are displayed and described to assist in the quest for effective solutions.

Capital Financing↗

A head holder for operative serial angiography.

An apparatus was developed to combine two functions--a versatile neurosurgical head clamp and a compact film changer for operative serial angiography. The construction costs were +15,000, and provided a programmer, six cassettes, and attachments to position the film changer over much of the skull surface. Exposures are obtained by a mobile x-ray machine.

Cerebral Angiography↗

Manitoba barium enema efficacy study.

Claims analysis and efficacy study are two new methods of evaluating medical services. In Manitoba, with a 1974 population of 1,053,382, approximately 100,000 patient-physician interfaces resulted in 16,594 barium enema examinations; 1,000 significant abnormalities were discovered, and the referring physician was unusally perceptive in predicting the likelihood of these abnormalities. It is estimated that a 10% reduction in the use of barium enemas could be achieved by referring physicians with no deterioration in the care of patients.

Adolescent↗

Education and practice location of Canadian diagnostic radiologist.

At the 1977 Annual Meeting of The Canadian Association of Radiologists, a survey of all practicing diagnostic radiologists was made. Information was also obtained from Royal College and Corporation Professionnelle records. The medical school, postgraduate program, and present location of practice were established for over 98% of active radiologists. This information has been collected to assist program directors, medical faculties, provincial governments, and radiologists in recognizing manpower needs.

Canada↗

Urography during pregnancy.

A review of 22,971 pregnancies from 1969-74 reveals that the reasons for requesting excretory urography were renal colic of pregnancy 11, pyelonephritis 8, renal contusion 2, threatened abortion 1, and suspected degeneration of fibroid 1. The final diagnoses were similar except that two patients with torsion of ovarian cysts and a renal calculus were discovered. The only intravenous pyelographic examination that was decisive for diagnosis was in a patient with a ureteric calculus. Careful clinical correlation should reduce excretory urography during pregnancy.

Adult↗