Retroperitoneal low-flow vascular malformations: characteristic MRI findings correlated with histopathological findings
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| 008 | 210128e20150801xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1007/s00261-014-0319-2 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00261-014-0319-2 | ||
| 245 | 0 | 0 | |a Retroperitoneal low-flow vascular malformations: characteristic MRI findings correlated with histopathological findings |h [Elektronische Daten] |c [Hirotaka Akita, Yoshitake Yamada, Yoshiaki Ito, Shuji Mikami, Hiroaki Sugiura, Shigeo Okuda, Masahiro Jinzaki] |
| 520 | 3 | |a Purpose: To evaluate the MRI findings of retroperitoneal low-flow vascular malformations (RLVMs) correlated with histopathological findings. Methods: Two radiologists reviewed the MRI findings of 4 RLVMs (3 with capillary malformations and 1 with a venous malformation). First, they evaluated the visibility, signal intensities, and signal homogeneity of each lesion on non-fat-suppressed breath-hold T2-weighted single-shot fast spin-echo (non-FS SSFSE) images and fat-suppressed T2-weighted fast spin-echo (FS T2-weighted FSE) images. Second, the kinetic patterns and the internal enhancement patterns were analyzed for each lesion on multi-phasic contrast-enhanced (CE) images. After these image analyses, the MRI findings were correlated with the histopathological findings. Result: Histopathologically, the 4 RLVMs did not exhibit remarkable degeneration and were present in the retroperitoneal fat tissue without clear capsules. On the non-FS SSFSE images, 3 of the 4 RLVMs could not be discriminated from the surrounding retroperitoneal fat tissue (invisible), and the remaining lesion was barely visible with an indistinct margin. On the FS T2-weighted FSE images, however, all the RLVMs were clearly visualized as homogeneous high-signal intensities. On the multi-phasic CE images, all the capillary malformations exhibited fast enhancement, while a venous malformation showed slow enhancement. Furthermore, the RLVMs tended to exhibit a centripetal filling pattern. Conclusion: The RLVMs blended in with the surrounding retroperitoneal fat tissue on non-FS SSFSE images, like phantoms, whereas they were clearly visualized on FS T2-weighted FSE images. On multi-phasic CE images, the RLVMs tended to exhibit a centripetal filling pattern. These imaging features may be useful diagnostic clues for RLVMs. | |
| 540 | |a Springer Science+Business Media New York, 2014 | ||
| 690 | 7 | |a Retroperitoneal low-flow vascular malformation |2 nationallicence | |
| 690 | 7 | |a Breath-hold T2-weighted single-shot fast spin-echo image |2 nationallicence | |
| 690 | 7 | |a Phantom sign |2 nationallicence | |
| 690 | 7 | |a Centripetal filling pattern |2 nationallicence | |
| 700 | 1 | |a Akita |D Hirotaka |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Yamada |D Yoshitake |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Ito |D Yoshiaki |u Department of Radiology, National Hospital Organization Tokyo Medical Center, 2-5-1, Higashigaoka, Meguro-ku, 152-8902, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Mikami |D Shuji |u Division of Diagnostic Pathology, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Sugiura |D Hiroaki |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Okuda |D Shigeo |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 700 | 1 | |a Jinzaki |D Masahiro |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | |
| 773 | 0 | |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1713-1720 |x 0942-8925 |q 40:6<1713 |1 2015 |2 40 |o 261 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00261-014-0319-2 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s00261-014-0319-2 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Akita |D Hirotaka |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Yamada |D Yoshitake |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Ito |D Yoshiaki |u Department of Radiology, National Hospital Organization Tokyo Medical Center, 2-5-1, Higashigaoka, Meguro-ku, 152-8902, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Mikami |D Shuji |u Division of Diagnostic Pathology, Keio University Hospital, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Sugiura |D Hiroaki |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Okuda |D Shigeo |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Jinzaki |D Masahiro |u Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, 160-8582, Tokyo, Japan |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/6(2015-08-01), 1713-1720 |x 0942-8925 |q 40:6<1713 |1 2015 |2 40 |o 261 | ||