Abstract:
RATIONALE AND OBJECTIVES:This study explores morphological relationships and structural variability of the corpus callosum (CC), fornix (Fo), anterior (AC), and posterior commissures (PC). MATERIALS AND METHODS:These structures are extracted automatically on the midsagittal plane. The CC and Fo are modeled using best-fit ellipses. The parameters characterizing these structures and relationships among them are points, distances, angles, and eccentricities. The minimum, maximum and mean values, standard deviations, and coefficients of variation for all parameters are calculated for 62 diversified MRI datasets. Subsequently, the regression analysis and parameter distribution study are performed. RESULTS:The parameters have at least 10% variations. The major axis of CC and eccentricities of CC and Fo vary much less than the other parameters The major axis of CC is approximately parallel to the AC-PC line. The mean eccentricity of each of CC and Fo is greater than 0.95. The most significant correlation (P < .05) is observed between various angles and the angle between the major axes of CC and Fo. The correlation is also significant between other angles and distances. The Weibull distribution characterizes the major axis of CC, and distance between the AC and the most superior point of CC. Distribution of angle between the major axes of CC and Fo is log (logistic), and normal for the AC-PC distance. CONCLUSIONS:The AC-PC distance, used prevalently for brain normalization, is not correlated with any parameters except with the distance between the AC and the most superior point on the body of the CC with P < .05.
journal_name
Acad Radioljournal_title
Academic radiologyauthors
Prakash KN,Nowinski WLdoi
10.1016/j.acra.2005.06.018keywords:
subject
Has Abstractpub_date
2006-01-01 00:00:00pages
24-35issue
1eissn
1076-6332issn
1878-4046pii
S1076-6332(05)00560-Xjournal_volume
13pub_type
杂志文章abstract:RATIONALE AND OBJECTIVES:The aims of this study were to review the role of a quality information program (QUIP) as a semiautomated educational feedback mechanism and to review common errors in cross-sectional abdominal and pelvic studies as an initiative for continuing medical education and improving patient care. MAT...
journal_title:Academic radiology
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journal_title:Academic radiology
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abstract:RATIONALE AND OBJECTIVES:We compared the performance of fast spin-echo (FSE) with conventional spin-echo (CSE) magnetic resonance (MR) imaging sequences in the detection of meniscal tears. METHODS:Seventy-three patients underwent MR examination of the knee for suspected internal derangement. Each patient was scanned w...
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pub_type: 传,历史文章,杂志文章,评审
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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:2004-03-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.acra.2007.01.027
更新日期:2007-04-01 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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更新日期:2006-11-01 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:2017-09-01 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:2018-12-01 00:00:00
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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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更新日期:2020-10-01 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:2012-10-01 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:2012-01-01 00:00:00