Journal article
Visualization of normal pulmonary fissures on sagittal multiplanar reconstruction MDCT
American journal of roentgenology (1976), Vol.187(2), pp.389-397
2006
DOI: 10.2214/AJR.05.0147
PMID: 16861543
Abstract
Objective: Delineation of the interlobar fissures on multiplanar reconstruction (MPR) images is useful to assess masses at the fissures for invasion into adjacent lobes. We performed this study to determine the appropriate MDCT protocol to visualize the interlobar fissures on sagittal MPR images.
Materials and methods: For the phantom studies, radiographic film was used to replicate the interlobar fissures. For the clinical studies, we obtained MDCT scans of 130 patients with normal interlobar fissures. Visualization of the interlobar fissures on sagittal MPR was assessed using the following scanning parameters: scan collimations of 0.5, 1, 2, and 3 mm with helical pitches of 1 and 1.5 for the phantom studies; and scan collimations of 0.5, 1, 2, and 3 mm with a helical pitch of 1.5 and a scan collimation of 2 mm with a helical pitch of 1 for the clinical studies.
Results: To visualize fissures as a sharp line, a 0.5- or 1-mm collimation was required for the major fissure and 0.5 mm for the minor fissure in the phantom studies. In the clinical studies, 0.5-mm-collimation MPR images depicted interlobar fissures as a sharp line in all cases. Fissures on MPR images using 1-, 2-, and 3-mm collimations appeared as a sharp line in 77.5-95.0%, 0-43.3%, and 0% of cases, respectively.
Conclusion: Volume data obtained using a 1-mm collimation are required to visualize all the interlobar fissures as a sharp line on sagittal MPR images except the minor fissure and superior portion of the right major fissure, for which a 0.5-mm collimation is required.
Details
- Title: Subtitle
- Visualization of normal pulmonary fissures on sagittal multiplanar reconstruction MDCT
- Creators
- Koji TAKAHASHI - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, JapanBrad THOMPSON - Department of Radiology, University of Iowa College of Medicine, Iowa City, IA 52242, United StatesWilliam STANFORD - Department of Radiology, University of Iowa College of Medicine, Iowa City, IA 52242, United StatesYutaka SATO - Department of Radiology, University of Iowa College of Medicine, Iowa City, IA 52242, United StatesKenichi NAGASAWA - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, JapanHiroaki SATO - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, JapanMakoto KUBOTA - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, JapanAyako KASHIBA - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, JapanHiroyuki SUGIMORI - Department of Radiology, Asahikawa Medical College and Hospital, 2-1-1-1 Midorigaowa-higashi, Asahikawa, 078-8510, Japan
- Resource Type
- Journal article
- Publication Details
- American journal of roentgenology (1976), Vol.187(2), pp.389-397
- DOI
- 10.2214/AJR.05.0147
- PMID
- 16861543
- NLM abbreviation
- AJR Am J Roentgenol
- ISSN
- 0361-803X
- eISSN
- 1546-3141
- Publisher
- American Roentgen Ray Society; Leesburg, VA
- Language
- English
- Date published
- 2006
- Academic Unit
- Radiology; Stead Family Department of Pediatrics
- Record Identifier
- 9984051870602771
Metrics
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