Document Detail

Fractal dimension analysis of MDCT images for quantifying the morphological changes of the pulmonary artery tree in patients with pulmonary hypertension.
MedLine Citation:
PMID:  21603288     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The aim of this study was to use fractal dimension (FD) analysis on multidetector CT (MDCT) images for quantifying the morphological changes of the pulmonary artery tree in patients with pulmonary hypertension (PH).
MATERIALS AND METHODS: Fourteen patients with PH and 17 patients without PH as controls were studied. All of the patients underwent contrast-enhanced helical CT and transthoracic echocardiography. The pulmonary artery trees were generated using post-processing software, and the FD and projected image area of the pulmonary artery trees were determined with ImageJ software in a personal computer. The FD, the projected image area and the pulmonary artery pressure (PAP) were statistically evaluated in the two groups.
RESULTS: The FD, the projected image area and the PAP of the patients with PH were higher than those values of the patients without PH (p < 0.05, t-test). There was a high correlation of FD with the PAP (r = 0.82, p < 0.05, partial correlation analysis). There was a moderate correlation of FD with the projected image area (r = 0.49, p < 0.05, partial correlation analysis). There was a correlation of the PAP with the projected image area (r = 0.65, p < 0.05, Pearson correlation analysis).
CONCLUSION: The FD of the pulmonary arteries in the PH patients was significantly higher than that of the controls. There is a high correlation of FD with the PAP.
Sun Haitao; Li Ning; Guo Lijun; Gao Fei; Liu Cheng
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Publication Detail:
Type:  Journal Article     Date:  2011-04-25
Journal Detail:
Title:  Korean journal of radiology : official journal of the Korean Radiological Society     Volume:  12     ISSN:  2005-8330     ISO Abbreviation:  Korean J Radiol     Publication Date:    2011 May-Jun
Date Detail:
Created Date:  2011-05-23     Completed Date:  2011-09-27     Revised Date:  2013-06-28    
Medline Journal Info:
Nlm Unique ID:  100956096     Medline TA:  Korean J Radiol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  289-96     Citation Subset:  IM    
Shandong University, Shandong Medical Imaging Research Institute, CT Room, Shandong, PR China.
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MeSH Terms
Case-Control Studies
Contrast Media / diagnostic use
Hypertension, Pulmonary / radiography*
Iohexol / analogs & derivatives,  diagnostic use
Middle Aged
Pulmonary Artery / radiography*
Radiographic Image Interpretation, Computer-Assisted / methods*
Tomography, Spiral Computed*
Reg. No./Substance:
0/Contrast Media; 66108-95-0/Iohexol; 73334-07-3/iopromide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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