Comparative Study of X-Ray Mammography and Xerography of Breast in Diagnosis of Breast Tumors-A Preliminary Report

放射線以及電子乳房攝影術對於乳房檢查的比較

徐劍耀(Jane Chieh-Yao Hsu)；施庭芳(Tiffany Ting-Fang Shih)

mammography ； xerography ； breast tumor

中華放射線醫學雜誌

13卷3期（1988 / 09 / 01）

225 - 234

英文

本文共統計了120位接受放射線或電子乳房攝影的病人。其中41位有病理結果。而對於乳房腫瘤的偵測率在放射線攝影為100%，在電子攝影為84%，。對於惡性腫瘤的辨別率在放射線檢查為60%，在電子攝影為54%，二者合為57%。對於良性腫瘤的辨別率在放射線攝影為45%，在電子攝影為60%，二者合為69%。對於受到癌細胞侵襲的腋下淋巴腺，以電子攝影術的診斷率(62%)略高於放射線攝影(33%)，但是假陽性率仍偏高。對於乳房腫瘤而言，有針狀的邊緣是為惡性腫瘤的表徵；而邊綠規則的圓或橢圓形腫瘤則偏向於良性。乳房的鈣化常以不規則的線狀或散栽狀表現於惡性腫瘤，良性腫瘤或異物肉芽瘤則有蛋殼狀的鈣化。所以放射線及電子乳房攝影術是一種方便而有效的乳房評估工具。為了早期診斷治療以及預防乳癌，建議婦女有乳房症狀，家屬之病史或40歲以上無乳房症狀者，每年至少做一次乳房攝影檢查。

One hundred and twenty patients were examined with x-ray mammography and/or xerography. Fourty-one patients had pathological results. The detection rates of breast lesions are 100% in mammography and 84% in xerography. The sensitivities for differentiation in the malignant disease are 60% for mammography, 54% for xerography and 57% for both; in the benign disease 45% for mammography, 60% for xerography and 69% for both. Spiculation of the, margin of breast nodules is a specific sign for malignant disease. The well-defined, round or ovoid mass usually favored a benign process. But occasionally the traditional ”well-defined” or ”ill-defined” lesion did not contribute much in differential diagnosis. Calcification is more often observed in carcinoma and distributed as irregular linear or scattered dusty shape. Foreign body granuloma usually had egg-shell calcification. The diagnostic accuracy of cancer-invaded axillary lymph node is higher in xerography (62%) than mammography (33%), but the false-positive rate is also high. Thus, the x-ray mammography and xerography are convenient, effective methods in breast evaluation and expose the patients with very low dose of X-ray.