Spot Mammography of Breast Cancer.
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概要
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In order to evaluate spot mammography for specific application to secondary mass screening, we compared images of tumor mass, spicula and microcalcification with those of routine mammography. The patients examined were 98 women who underwent preoperative mammography, and from whom 20 specimens were removed between April 1993 and March 1996. The equipment used was an ATOM Scope-50M (MIKASA) and GE YOKOKAWA-MEDICAL Seno-graphe DMR. Images on spot mammography were enlarged by either 1.5 times or 1.9 times mostly on cranio-caudal view. On routine mammography, alomost no difference was seen in the detectability of tumor contours according to the size on palpation. However, the detectability of microcalcification was most favorable for tumor over 4 cm in size (51.9%). The detectability of microcalcification according to histological type was most favorable for scirrhous carcinoma (40.6%), followed by papillotubular carcinoma (34.2%) and solid-tubular carcinoma (27.3%).Spicules were most favorably depicted in scirrhous carcinoma (68.8%). On spot mammography, conspicuous improvement by tumor size was seen in 65% of 2.0-2.9cm tumors, but for tumors over 4 cm the improvement was unfavorable at 25%. With regard to tumor enlargement, tumors were more clearly visualized at 1.5 times than at 1.9 times (54.6% vs 25%). Microcalcifications were improved in all cases regardless of tumor size. Furthermore, spot specimen radiography revealed that detection of extensive extra-tumor calcification was improved by 1.9 times enlargement in all of 5 cases. <BR>In conclusion, spot mammography is considered useful for practical application to secondary mass screening.
- 日本乳癌検診学会の論文
日本乳癌検診学会 | 論文
- Characteristics of Patients with Interval Breast Carcinomas.
- Evaluation of Mass Screening for Breast Cancer Conducted under the Health and Medical Service Law for the Elderly and the Actual Conditions of Health Insurance Administration in Zentsuji City.
- Two Cases of Mucinous Carcinoma of the Breast Manifested as Interval Cancer.
- Breast-Conserving Therapy for Breast Cancer Patients Showing Mammographic Evidence of Calcification.
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