Abstract:
RATIONALE AND OBJECTIVES:To evaluate the sensitivity of high-resolution breast-specific gamma imaging (BSGI) for the detection of ductal carcinoma in situ (DCIS) based on histopathology and to compare the sensitivity of BSGI with mammography and magnetic resonance imaging (MRI) for the detection of DCIS. MATERIALS AND METHODS:Twenty women, mean 55 years (range 34-76 years), with 22 biopsy-proven DCIS were retrospectively reviewed. After injection of 25-30 mCi (925-1,110 MBq) technetium 99m-sestamibi, patients had BSGI with a high-resolution, small-field-of-view gamma camera in craniocaudal and mediolateral oblique projections. BSGI studies were prospectively classified according to focal radiotracer uptake using a 1 to 5 scale, as normal 1), with no focal or diffuse uptake; benign 2), with minimal patchy uptake; probably benign 3), with scattered patchy uptake; probably abnormal 4), with mild focal radiotracer uptake; and abnormal 5), with marked focal radiotracer uptake. Imaging findings were compared to findings at biopsy or surgical excision. The sensitivity of BSGI, mammography, and when performed, MRI were determined for the detection of DCIS. Breast MRI was performed on seven patients with eight biopsy-proven foci. The sensitivities were compared using a two-tailed t-test and confidence intervals were determined. RESULTS:Pathologic tumor size of the DCIS ranged from 2 to 21 mm (mean 9.9 mm). Of 22 cases of biopsy-proven DCIS in 20 women, 91% were detected with BSGI, 82% were detected with mammography, and 88% were detected with magnetic resonance imaging. BSGI had the highest sensitivity for the detection of DCIS, although this small sample size did not demonstrate a statistically significant difference. Two cases of DCIS (9%) were diagnosed only after BSGI demonstrated an occult focus of radiotracer uptake in the contralateral breast, previously undetected by mammography. There were two false-negative BSGI studies CONCLUSIONS:BSGI has higher sensitivity for the detection of DCIS than mammography or MRI and can reliably detect small, subcentimeter lesions.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Brem RF,Fishman M,Rapelyea JAdoi
10.1016/j.acra.2007.04.004subject
Has Abstractpub_date
2007-08-01 00:00:00pages
945-50issue
8eissn
1076-6332issn
1878-4046pii
S1076-6332(07)00194-8journal_volume
14pub_type
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journal_title:Academic radiology
pub_type: 杂志文章
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journal_title:Academic radiology
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更新日期:1995-04-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Pulmonary vascular alteration is one of the characteristic features of chronic obstructive pulmonary disease (COPD). Recent studies suggest that vascular alteration is closely related to endothelial dysfunction and may be further influenced by emphysema. However, the relationship between morpho...
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pub_type: 临床试验,杂志文章
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journal_title:Academic radiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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更新日期:1999-01-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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journal_title:Academic radiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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doi:10.1016/j.acra.2008.07.015
更新日期:2008-12-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2004.01.005
更新日期:2004-06-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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pub_type: 杂志文章,多中心研究
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journal_title:Academic radiology
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doi:10.1016/j.acra.2005.09.085
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2007.02.005
更新日期:2007-05-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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journal_title:Academic radiology
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journal_title:Academic radiology
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journal_title:Academic radiology
pub_type: 杂志文章
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pub_type: 杂志文章
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