在薄层及后处理CT图像上观察肺叶间裂的影像表现

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Abstract Objective: To analyze the imaging manifestations of interlobar fissures on thin-section and reconstructed CT images. Methods: Three hundred and thirty-three patients were scanned by thin-section CT. Interlobar fissures were observed on axial CT images and reconstructed CT images by multiplanar reformat(MPR) and maximal intensity projection(MIP). The interlobar fissures were characterized by lines, bands, avascular zones, and mixed imaging on the axial CT. The incomplete interlobar fissures were categorized into four types, and the locations of incompleteness were confirmed. Results: Only 20.72% showed fully complete interlobar fissures in all the three types of interlobar fissures. The cases with incomplete fissures included 42.94% of left oblique fissures(LOFs), 38.74% of right oblique fissures(ROFs), and 56.46% of horizontal fissures(HFs). The incomplete parts of interlobar fissures were most likely near the hilar or mediastinal region. On the axial CT, no interlobar fissures with avascular zones, 94.29% of LOFs appeared as lines, 71.47% of ROFs appeared as lines, and 82.58% of HFs appeared as bands. All the interlobar fissures appeared as lines on the coronal and sagittal CT. In classifications of incomplete interlobar fissures, types Ⅰ and Ⅱ were the most frequently observed in LOFs, types Ⅰ and Ⅲ in ROFs, and types Ⅰ and Ⅳ in HFs. Conclusion: Incomplete interlobar fissures are common manifestation on thin-section CT. The techniques of thin-section CT and post-processing techniques can assist in the recognition for interlobar fissures and their variations.

Key words： Lung Tomography, X-ray computed

PACS:	Ｒ563
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	Articles by authors
	GUAN Chun-shuang
	CUI Dun
	CUI Ping
	GAO Peng

Cite this article:

GUAN Chun-shuang,CUI Dun,CUI Ping, et al. Pulmonary fissures presented on thin-section and reconstructed CT images[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(6): 403-406.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2016/V27/I6/403

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