Abstract:
RATIONALE AND OBJECTIVES:Rotator cuff disorders are prevalent and can cause pain and reduced range of motion and strength. Accurate, noninvasive diagnosis of rotator cuff disorders is therefore important. In this work, we study the relationship between several three-dimensional (3D) shape measurements of the supraspinatus and its pathologic conditions. The objective is to explore the utility of 3D shape descriptors in distinguishing supraspinatus pathologies, leading to computer-aided diagnosis of rotator cuff disorders. MATERIALS AND METHODS:We acquired magnetic resonance images of the shoulder from 73 patients, separated into five pathology groups: normal (14), tear (20), tear and atrophy (13), tear and retraction (15), and tear and atrophy and retraction (11). We segmented the 3D surface of the supraspinatus from each magnetic resonance image, and computed 11 3D shape characteristics for each. We performed an analysis of variance (ANOVA) test for each measurement to test the null hypothesis that the means of the pathology groups were equal. The most promising of the measurements, as determined by the ANOVA test, were used to train a support vector machine classifier to automatically assign new supraspinata to the correct pathology groups. RESULTS:The ANOVA test results rejected the null hypothesis (p < .0045) for 7 of our 11 measurements. Highlights of the results from the support vector machine classifier were 79% accuracy in distinguishing normals from abnormals, and 82% accuracy in distinguishing atrophy from retraction, our main clinical motivation. These scores were tabulated based on leave-one-out cross-validation. CONCLUSION:From the results, we draw the conclusion that 3D shape analysis may be helpful in the diagnosis of rotator cuff disorders, but further investigation is required to develop a 3D shape descriptor that yields ideal pathology group separation. The results of this study suggest several promising avenues of future research to meet this goal.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Ward AD,Hamarneh G,Ashry R,Schweitzer MEdoi
10.1016/j.acra.2007.06.014subject
Has Abstractpub_date
2007-10-01 00:00:00pages
1229-41issue
10eissn
1076-6332issn
1878-4046pii
S1076-6332(07)00337-6journal_volume
14pub_type
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(03)80517-2
更新日期:2002-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The authors performed this study to determine the optimum threshold for performing computed tomographic (CT) angiography with shaded surface display (SSD). MATERIALS AND METHODS:A dedicated phantom was developed with an 8-mm luminal diameter. Each of 19 vessels had stenoses ranging from 0% to ...
journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:2001-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:We sought to evaluate the diagnostic performance of high-resolution magnetic resonance imaging (MRI) and conventional MRI of the knee on a standard-field-strength MRI system compared to arthroscopic findings in patients with suspected meniscal tears. MATERIALS AND METHODS:Forty-two patients (2...
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更新日期:2008-07-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2018.03.007
更新日期:2018-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Cellulitis is a common cause for emergency department (ED) presentation and subsequent hospital admission. Underlying fracture, osteomyelitis, or foreign body is often considered in the clinical evaluation of these patients. Accordingly, plain radiographs (XRs) of the affected extremity are oft...
journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:2015-11-01 00:00:00
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doi:10.1016/j.acra.2006.02.040
更新日期:2006-06-01 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: 杂志文章
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更新日期:2020-05-11 00:00:00
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pub_type: 杂志文章
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更新日期:2015-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2017-07-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2008.02.009
更新日期:2008-08-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2004.06.009
更新日期:2005-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:1997-08-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:2011-07-01 00:00:00
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更新日期:2017-06-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2008.09.015
更新日期:2009-03-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章,meta分析,评审
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更新日期:2015-08-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
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journal_title:Academic radiology
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更新日期:2011-07-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/s1076-6332(05)80340-x
更新日期:1995-05-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:1996-08-01 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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更新日期:2006-07-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
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更新日期:1995-01-01 00:00:00
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journal_title:Academic radiology
pub_type: 杂志文章
doi:10.1016/j.acra.2006.05.004
更新日期:2006-09-01 00:00:00