Chronic lower extremity lymphedema: A comparative study of high-resolution interstitial MR lymphangiography and heavily 2-weighted MRI
Identifieur interne : 000268 ( PascalFrancis/Checkpoint ); précédent : 000267; suivant : 000269Chronic lower extremity lymphedema: A comparative study of high-resolution interstitial MR lymphangiography and heavily 2-weighted MRI
Auteurs : QINGLU [République populaire de Chine] ; JIANRONG XU [République populaire de Chine] ; NINGFEI LIU [République populaire de Chine]Source :
- European journal of radiology [ 0720-048X ] ; 2010.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Purpose: To assess the role of heavily T2-weighted image and interstitial MR lymphangiography (MRL) for the visualization of lymphatic vessels in patients with disorders of the lymphatic circulation. Methods: Forty lower extremities in 31 patients (9 bilateral and 22 unilateral) with primary lymphedema were examined by heavilyT2-weighted image and indirect MRL Maximum-intensity projection (MIP) was used to reconstruct the images of the lymphatic system. Two experienced radiologists analyzed the images with regard to the differences in image quality, number of lymphatic vessels, its maximum diameter and two other findings: accumulated lymph fluid in the tissue and honeycombing pattern. Results: The beaded appearance of the affected vessels in 73 leg segments of 40 lower extremities were present on both modalities 3D MIP. Larger amount of the dilated lymphatic vessels were visualized on heavily T2-weighted image than that on MRL (p=0.003) and the maximum diameter of it was 4.28 ± 1.53 mm on heavily T2-weighted image, whereas 3.41 ± 1.05 mm on MRL (p < 0.01). The dilated lymphatic vessels on MRL showed better image quality and greater SNR and CNR than that on heavily T2-weighted image (p < 0.01). The regions of accumulated lymph fluid and the honeycombing pattern extent were identified on heavily T2-weighted image scored statistically higher than that on MRL (p < 0.01). Conclusion: The heavily T2-weighted imaging has greater sensitivity and the MRL image has higher legibility for detecting the pathologically modified lymphatic vessels and accompanying complications non-invasively. Combining these two MR techniques can accurately access the pathological changes in the lower extremity with lymphedema.
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200127</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai 200127</wicri:noRegion></affiliation></author><author><name sortKey="Ningfei Liu" sort="Ningfei Liu" uniqKey="Ningfei Liu" last="Ningfei Liu">NINGFEI LIU</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Plastic & Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Second Medical University, 639 Zhi Zao Ju Rd</s1><s2>Shanghai 200011</s2><s3>CHN</s3><sZ>3 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai 200011</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">10-0181464</idno><date when="2010">2010</date><idno type="stanalyst">PASCAL 10-0181464 INIST</idno><idno type="RBID">Pascal:10-0181464</idno><idno 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sort="Jianrong Xu" uniqKey="Jianrong Xu" last="Jianrong Xu">JIANRONG XU</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Radiology, Shanghai Renji Hospital, Shanghai Jiao Tong University School of Medicine, 1630 Dong Fang Rd</s1><s2>Shanghai 200127</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai 200127</wicri:noRegion></affiliation></author><author><name sortKey="Ningfei Liu" sort="Ningfei Liu" uniqKey="Ningfei Liu" last="Ningfei Liu">NINGFEI LIU</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Plastic & Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Second Medical University, 639 Zhi Zao Ju Rd</s1><s2>Shanghai 200011</s2><s3>CHN</s3><sZ>3 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai 200011</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">European journal of radiology</title><title level="j" type="abbreviated">Eur. j. radiol.</title><idno type="ISSN">0720-048X</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">European journal of radiology</title><title level="j" type="abbreviated">Eur. j. radiol.</title><idno type="ISSN">0720-048X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chronic</term><term>Comparative study</term><term>High resolution</term><term>Lymphedema</term><term>Lymphography</term><term>Nuclear magnetic resonance imaging</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Lymphoedème</term><term>Lymphographie</term><term>Imagerie RMN</term><term>Chronique</term><term>Etude comparative</term><term>Haute résolution</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose: To assess the role of heavily T2-weighted image and interstitial MR lymphangiography (MRL) for the visualization of lymphatic vessels in patients with disorders of the lymphatic circulation. Methods: Forty lower extremities in 31 patients (9 bilateral and 22 unilateral) with primary lymphedema were examined by heavilyT2-weighted image and indirect MRL Maximum-intensity projection (MIP) was used to reconstruct the images of the lymphatic system. Two experienced radiologists analyzed the images with regard to the differences in image quality, number of lymphatic vessels, its maximum diameter and two other findings: accumulated lymph fluid in the tissue and honeycombing pattern. Results: The beaded appearance of the affected vessels in 73 leg segments of 40 lower extremities were present on both modalities 3D MIP. Larger amount of the dilated lymphatic vessels were visualized on heavily T2-weighted image than that on MRL (p<sub>=</sub>0.003) and the maximum diameter of it was 4.28 ± 1.53 mm on heavily T2-weighted image, whereas 3.41 ± 1.05 mm on MRL (p < 0.01). The dilated lymphatic vessels on MRL showed better image quality and greater SNR and CNR than that on heavily T2-weighted image (p < 0.01). The regions of accumulated lymph fluid and the honeycombing pattern extent were identified on heavily T2-weighted image scored statistically higher than that on MRL (p < 0.01). Conclusion: The heavily T2-weighted imaging has greater sensitivity and the MRL image has higher legibility for detecting the pathologically modified lymphatic vessels and accompanying complications non-invasively. Combining these two MR techniques can accurately access the pathological changes in the lower extremity with lymphedema.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0720-048X</s0></fA01><fA02 i1="01"><s0>EJRADR</s0></fA02><fA03 i2="1"><s0>Eur. j. radiol.</s0></fA03><fA05><s2>73</s2></fA05><fA06><s2>2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Chronic lower extremity lymphedema: A comparative study of high-resolution interstitial MR lymphangiography and heavily 2-weighted MRI</s1></fA08><fA11 i1="01" i2="1"><s1>QINGLU</s1></fA11><fA11 i1="02" i2="1"><s1>JIANRONG XU</s1></fA11><fA11 i1="03" i2="1"><s1>NINGFEI LIU</s1></fA11><fA14 i1="01"><s1>Department of Radiology, Shanghai Renji Hospital, Shanghai Jiao Tong University School of Medicine, 1630 Dong Fang Rd</s1><s2>Shanghai 200127</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Plastic & Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Second Medical University, 639 Zhi Zao Ju Rd</s1><s2>Shanghai 200011</s2><s3>CHN</s3><sZ>3 aut.</sZ></fA14><fA20><s1>365-373</s1></fA20><fA21><s1>2010</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>18731</s2><s5>354000181874360280</s5></fA43><fA44><s0>0000</s0><s1>© 2010 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>33 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>10-0181464</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>European journal of radiology</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>Purpose: To assess the role of heavily T2-weighted image and interstitial MR lymphangiography (MRL) for the visualization of lymphatic vessels in patients with disorders of the lymphatic circulation. Methods: Forty lower extremities in 31 patients (9 bilateral and 22 unilateral) with primary lymphedema were examined by heavilyT2-weighted image and indirect MRL Maximum-intensity projection (MIP) was used to reconstruct the images of the lymphatic system. Two experienced radiologists analyzed the images with regard to the differences in image quality, number of lymphatic vessels, its maximum diameter and two other findings: accumulated lymph fluid in the tissue and honeycombing pattern. Results: The beaded appearance of the affected vessels in 73 leg segments of 40 lower extremities were present on both modalities 3D MIP. Larger amount of the dilated lymphatic vessels were visualized on heavily T2-weighted image than that on MRL (p<sub>=</sub>0.003) and the maximum diameter of it was 4.28 ± 1.53 mm on heavily T2-weighted image, whereas 3.41 ± 1.05 mm on MRL (p < 0.01). The dilated lymphatic vessels on MRL showed better image quality and greater SNR and CNR than that on heavily T2-weighted image (p < 0.01). The regions of accumulated lymph fluid and the honeycombing pattern extent were identified on heavily T2-weighted image scored statistically higher than that on MRL (p < 0.01). Conclusion: The heavily T2-weighted imaging has greater sensitivity and the MRL image has higher legibility for detecting the pathologically modified lymphatic vessels and accompanying complications non-invasively. 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