Journal
EUROPEAN RADIOLOGY
Volume 28, Issue 1, Pages 291-300Publisher
SPRINGER
DOI: 10.1007/s00330-017-4948-z
Keywords
Lower limb lymphoedema; Non-contrast MR lymphography; MR lymphography; Lymphatic vessels; Lymphoedema
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The purpose of the present study was to analyse the performance of non-contrast MR lymphography for the classification of primary lower limb lymphoedema in 121 consecutive patients with 187 primary lower limb lymphoedemas. 121 consecutive patients with clinically diagnosed primary lower limb lymphoedema underwent non-contrast MR lymphography with a free-breathing 3D fast spin-echo sequence with a very long TR/TE (4000/884 ms). MR examinations were retrospectively reviewed for severity of lymphoedema (absent, mild, moderate, severe) and characteristics of inguinal lymph nodes and iliac and inguinal lymphatic trunks graded as aplasic (no lymph nodes or lymphatic trunks), hypoplasic (less lymph nodes or lymphatic trunks), normal and hyperplasic (more lymph nodes or more and/or dilated trunks). There was an excellent correlation between clinical stage and severity of lymphoedema (Cramer's V of 0,73 (p < 0.001)). Differentiation was feasible between inguinal lymphatic vessel aplasia (21%), hypoplasia (15%), normal pattern (53%) and hyperplasia (11%). Severe lymphoedema was observed in 46% of aplasic patterns and in 37% of hyperplasic patterns, but in only 15% of hypoplasic patterns and never observed in normal patterns (p < 0.001). Non-contrast MR lymphography is able to classify primary lower limb lymphoedemas into hyperplasic, aplasic, hypoplasic and normal patterns. aEuro cent Non-contrast MR lymphography is able to classify primary lower limb lymphoedemas. aEuro cent Lymphoedema can be classified in hyperplasic, aplasic, hypoplasic and normal patterns. aEuro cent Non-contrast MR lymphography can optimize clinical management of primary lower limb lymphoedemas.
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