PubMed Health⌕ Search

Biomedical subjects

L J Burhenne

Publications and source records attributed to L J Burhenne.

9 recordsLinked to original sources
PubMed1995

Quality-oriented mass mammography screening.

PURPOSE: To demonstrate the ability of a mass mammography screening program to provide consistently high-quality mammography screening, while at the same time sustain a large volume of patients to keep the cost of mammography low. MATERIALS AND METHODS: A public-funded, mass mammography screening program, begun in 1988, is currently being conducted in five Canadian provinces. For the Screening Mammography Program of British Columbia, complete follow-up data are available for the first 57 months of operation. During that time, the program expanded from one center with five radiologist screeners to 14 centers with 30 radiologist screeners. There were 201,937 examinations performed on 128,325 women, 35% of whom were younger than 50 years. RESULTS: There were 802 cancers detected at an overall rate of 6.2 per 1,000 women (2.8 per 1,000 in women younger than 50 years and 8.1 per 1,000 in women older than 50 years). In the women younger than 50 years, 90 (72%) of the cancers were stage 0 or stage I, and the axillary lymph nodes were involved in 14 (11%). In the women 50 years or older, 496 (73%) of the cancers were stage 0 or stage 1, and the axillary lymph nodes were involved in 97 (14%). CONCLUSION: If quality is carefully controlled, the results of a mass screening program can be either maintained or improved. For both age groups, the prognostic characteristics are similar.

Breast Neoplasms↗
PubMed1994

Screening mammography in British Columbia: 1988-1993.

Breast carcinoma continues to be the most common cause of death due to malignancy for women in Canada. The Screening Mammography Program of British Columbia, the first provincial screening program in Canada, was established in 1988 with funding from the Ministry of Health to diagnose the disease as early as possible. The program has grown rapidly, increasing from 7,100 examinations in a pilot project in 1988 to 89,390 examinations between April 1, 1992 and March 31, 1993 for a cumulative total of 201,937 examinations of 128,325 women, and it now offers free screening mammography throughout the province. The program has maintained quality control standards and low cost per mammogram while developing different operational models for the differing requirements of the various areas of the province. Similar proportions of women older or younger than age 50 have favourable characteristics such as small size of tumor (median: 15 to 16 mm) and negative lymph nodes (86% to 89%).

Breast Neoplasms↗
PubMed1993

The Canadian National Breast Screening Study: a Canadian critique.

The Canadian National Breast Screening Study (CNBSS) was the first study designed to determine the efficacy of screening for breast carcinoma in women 40-49 years old. Women were randomized to undergo either annual mammography and physical examination or usual care after an initial physical examination [1]. Women 50-59 years old were randomized to undergo either annual mammography and physical examination or annual physical examination only [2]. This study, published by epidemiologists on the efficacy of a radiologic examination, therefore, invites evaluation by radiologists.

Adult↗
PubMed1992

The British Columbia Mammography Screening Program: evaluation of the first 15 months.

We report our experiences in the first 15 months of a government-funded pilot project begun in 1988 to study the feasibility of rapid throughput, low-cost screening mammography in British Columbia. The primary goals of the project were (1) to determine the unit cost of screening mammography within the context of the program; (2) to design and put into operation a centralized system of data collection, analysis, and quality control to enable calculations of cancer detection rates, biopsy rates, biopsy yield ratios, staging, and other specific cancer characteristics; and (3) to study compliance in the community where the program was offered. A total of 11,824 women had mammography at a unit cost of U.S. $32.66. Computerized analysis revealed that (1) 11% of women had known primary risk factors; (2) findings on mammograms were interpreted as abnormal in 9% of screening examinations; (3) breast cancers were confirmed in 47 (22%) of 211 patients who had biopsies, and 87% of these were stage 0-1. The overall cancer detection rate was four per 1000, with five per 1000 for women who had not had mammography in the preceding 2 years and one per 1000 for women who had had mammography in the past 2 years. The results show that screening mammography can be conducted at low cost. Data collection and analysis and compliance were sufficiently convincing to initiate province-wide expansion.

Adult↗
PubMed1988

Ruptured breast implant: computed tomographic and mammographic findings.

We report the computed tomographic and mammographic findings in a patient with a ruptured breast implant. The diagnosis was made by recognition of alteration in prosthesis contour, collapse of the prosthesis envelope, and the presence of free silicone in the breast and axillary region.

Breast↗
PubMed1986

Xeroradiography in the diagnosis of the Haglund syndrome.

Xeroradiography is the radiographic method of choice for assessment of soft tissues and calcaneal detail in patients suffering from a painful swelling localized in the heel. The radiographic triad of retrocalcaneal bursitis, superficial tendo Achillis bursitis, and Achilles tendon thickening, in the presence of an intact posterior superior calcaneal margin, are readily evaluated with xeroradiography. The Haglund syndrome is a painful inflammation involving the two bursae which surround the Achilles tendon. It is associated with a prominent posterior superior calcaneal margin. Of the two objective measurements devised to assess this prominence, neither the posterior calcaneal angle of Philip and Fowler of greater than 75 degrees nor the parallel pitch line (PPL) has proved to be a reliable index. In the present study, we evaluated four patients with heel pain and swelling as well as 100 control patients. The findings suggest that the prominence of the posterior calcaneal angle should be assessed relative to the known normal range rather than by comparison to a single fixed angulation which is arbitrarily designated as being abnormal.

Achilles Tendon↗
PubMed1984

Radiology of the Angelchik prosthesis for gastroesophageal reflux.

The placement of a ring prosthesis around the esophagus above the gastric cardia for treatment of gastroesophageal reflux has been shown to give acceptable clinical results and is technically easier than procedures such as gastropexy and fundoplication. Radiologists should be familiar with this surgical technique because postoperative follow-up and complications are best evaluated by radiologic imaging. The normal and abnormal radiologic features of the Angelchik antireflux device are described. Of 38 patients who underwent surgical implantation of the Angelchik prosthesis, four required postoperative removal of the device because of its dislodgment.

Adult↗
PubMedDate not supplied

The Screening Mammography Program of British Columbia: pilot study.

A government-funded pilot project of high volume screening mammography was conducted in Vancouver, British Columbia. 7,100 women were screened over a 9-month period, averaging 43 women per day at a cost of $33.81 per woman screened. 722 (10%) had abnormal mammograms; 144 received breast biopsies; and 29 were diagnosed with cancer. The overall cancer detection rate was 4.1 per 1,000 (0.8 and 4.8 for incident and prevalent cases, respectively). The staging distribution for the 29 cancer cases was 5, 15, 8 and 1 for in situ, stage I, II and III, respectively.

Breast Neoplasms↗