Anatomy of the minor fissure: assessment with high-resolution CT and classification

Macit Ariyürek; Nevzat Karabulut; Selçuk Yelgeç; Meltem Gülsün

doi:10.1007/s003300100907

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Anatomy of the minor fissure: assessment with high-resolution CT and classification

Journal article

Peer reviewed

Anatomy of the minor fissure: assessment with high-resolution CT and classification

Macit Ariyürek, Nevzat Karabulut, Selçuk Yelgeç and Meltem Gülsün

European radiology, Vol.12(1), pp.175-180

01/01/2002

DOI: 10.1007/s003300100907

PMID: 11868095

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Abstract

The aims of this study were to investigate the anatomy of the minor fissure and its variations on high-resolution CT (HRCT) sections and to propose a detailed classification. The prospective study included 67 patients who were referred to CT for various indications. High-resolution CT examinations (1.5-mm collimation) were obtained through the region of the minor fissure. The CT scans were assessed for the presence, completeness, and configuration of the minor fissure. Various configurations of the minor fissure were classified into four major types, based on whether the highest portion of the middle lobe upper surface was medial (type I), lateral (type II), posterior (type III), or central (type IV). Minor fissure was identified in 65 (97%) of 67 patients, and absent in 2 (3%) cases. The fissure was incomplete in 35 (54%) of 65 patients. Type-I minor fissure is seen in 28 (43%) patients, type II in 22 (34%), type III in 5 (8%), and type IV in 2 (3%) patients. Because the majority of the fissure was absent in 8 (12%) of 35 patients with incomplete fissure, they were considered indeterminate. Comprehensive knowledge of the various configurations of the minor fissure is helpful in correct localization of a lesion and its extension. In equivocal cases, limited thin-section CT scans through the fissure delineate the anatomy more clearly and provide greater degree of precision in localizing pulmonary lesions.

Medical Imaging

Thoracic Surgery

Classification

Investigations

Localization

Details

Title: Subtitle: Anatomy of the minor fissure: assessment with high-resolution CT and classification
Creators: Macit Ariyürek - Hacettepe University Hospital
Nevzat Karabulut
Selçuk Yelgeç
Meltem Gülsün
Resource Type: Journal article
Publication Details: European radiology, Vol.12(1), pp.175-180
Publisher: Springer Nature B.V
DOI: 10.1007/s003300100907
PMID: 11868095
ISSN: 0938-7994
eISSN: 1432-1084
Language: English
Date published: 01/01/2002
Academic Unit: Radiology
Record Identifier: 9984700239902771

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