조규란 교수

Diagnosis of non-calcified DCIS by mammography is not an easy task due to the lack of typical malignant calcifications or masses. High resolution ultrasound can be useful for detecting non-calcified DCIS, and ultrasound findings are correlated with histological features.

BACKGROUND: As both intravoxel incoherent motion (IVIM) modeling and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) provide perfusion parameters, IVIM-derived perfusion parameters might be expected to correlate with the kinetic features from DCE-MRI. PURPOSE: To investigate the association between IVIM parameters and prognostic factors and to evaluate the correlation between IVIM parameters and kinetic features in invasive breast cancer patients using computer-aided diagnosis (CA

The possibility of malignancy is strongly indicated when additional NME lesions show linear or segmental enhancement on preoperative 3T DCE-MRI in patients with recently diagnosed breast cancer.

The pre-operative use of the 3.0 Tesla DWI could provide information about the lymph node status and tumor proliferation for breast cancer patients, and could help determine the optimal treatment plan.

Purpose: To evaluate radiological findings of non-calcified ductal carcinoma in situ (DCIS) and to correlate those with histological features. Materials and Methods: From July 2002 to March 2006, 22 patients with histologically-proven non- calcified DCIS were included. Mammography was obtained in 19 patients, ultrasound in 18 patients, and both examinations in 15 patients. Radiological findings were evaluated according to the Breast Imaging Reporting and Data System by American College of Radiol

For breast cancer screening, breast US alone is satisfactory for all age groups, although FFDM+ CAD+US is the perfect screening method. Patient age, breast composition, and pathological tumor size and type may influence cancer detection during screening.

Purpose: We aimed to compare the detection of breast cancer using full-field digital mammography (FFDM), FFDM with computer-aided detection (FFDM+CAD), ultrasound (US), and FFDM+CAD plus US (FFDM+CAD+US), and to investigate the factors affecting cancer detection. Methods: In this retrospective study conducted from 2008 to 2012, 48,251 women underwent FFDM and US for cancer screening. One hundred seventy-one breast cancers were detected: 115 invasive cancers and 56 carcinomas in situ. Two radiolo

: Metastatic involvement of the breast from an extra-mammary tumor is rare. However, when a patient with a known primary malignancy complains of a palpable breast mass, both the primary breast cancer and the metastatic lesion must be considered as a differential diagnosis. Melanoma is one of the tumors that commonly metastasizes to the breast, but the characteristic imaging features are not well known. Therefore, an understanding of the characteristic image findings for melanoma would be advanta

Purpose: This study was designed to investigate differences in ultrasonographic findings between malignant and benign mammary duct ectasia. Methods: From January 2003 to June 2005, 54 surgically proven mammary duct ectasia lesions depicted on sonograms were included in this study. We evaluated the ultrasonographic (US) findings in terms of involved ductal location, size, margin, intraductal echogenicity, presence of an intraductal nodule, calcification, ductal wall thickening and echo changes of

Primary breast lymphoma is a rare disease entity, particularly the T-cell type. There have been many case reports of primary breast lymphomas; however, these are mostly pathologic reports, with only a few reports in radiology literature. To the best of our knowledge, this is the first report on the radiologic features of primary T-cell type breast lymphoma, including mammography, ultrasonography, MR imaging, and 18 fluorodeoxyglucose positron emission tomography/computed tomography scan. The rad

Purpose: To describe the spiral CT findings of CRCC and to correlate these with the pathologic features, nuclear grading, tumor staging, and prognosis. Materials and Methods: We encountered eleven cases of CRCC among 167 cases of histopathologically proven RCC, retrospectively evaluating the spiral CT findings of CRCC including tumor size, internal texture, attenuation, margin, and the involvement of veins or lymph nodes. In addition, the CT findings were correlated with the pathologic features,

Purpose: The aim of this study was to investigate any difference of ultrasound findings for palpable and nonpalpable breast cancers. Methods: Two hundred breast cancer patients that had undergone preoperative ultrasound and surgery were enrolled in the study. A total of 126 cancers were palpable, and the remaining 74 cancers were nonpalpable. We compared lesion characteristics using ultrasound images according to the BI-RADS� -Ultrasound guidelines of the American College of Radiology. A crude o