Differentiation of Malignant Omental Caking from Benign Omental Thickening using MRI
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| 024 | 7 | 0 | |a 10.1007/s00261-014-0259-x |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s00261-014-0259-x | ||
| 245 | 0 | 0 | |a Differentiation of Malignant Omental Caking from Benign Omental Thickening using MRI |h [Elektronische Daten] |c [Ankur Doshi, Naomi Campbell, Cristina Hajdu, Andrew Rosenkrantz] |
| 520 | 3 | |a Purpose: To determine multi-parametric MRI features that can help differentiate malignant omental caking from benign omental thickening in the setting of portal hypertension. Methods: We identified 19 patients with an abnormal omentum on MRI and an available reference standard: 11 patients with portal hypertension and benign omental thickening (9 male, 2 female, mean age 58±6years) and 8 patients with metastatic omental caking (4 male, 4 female, mean age 61±13years). Criteria for benign omental thickening were no evidence of malignancy for at least 24months of follow-up (n=7), negative ascites cytology (n=2), or absence of malignancy on pathologic analysis of liver explant (n=2). Criteria for omental malignancy were positive omental biopsy (n=6) or ascites cytology (n=2). Two radiologists (R1 and R2) evaluated characteristics of the thickened omentum on MRI. Results: Findings occurring with significantly higher frequency in malignant omental caking were hyperintensity on high b-value diffusion-weighted imaging (DWI) (R1 88% vs. 0%, R2 88% vs. 0%), hyperenhancement (R1 75% vs. 0%, R2 75% vs. 0%), and convex outer omental contour (R1 88% vs. 0%, R2 75% vs. 9%) (all p≤0.001); discrete omental nodules were significantly more frequent in malignant omental thickening for R1 (63% vs. 0%, p=0.005). Features not significantly different between groups included decreased ADC, T2 hyperintensity, vessels coursing through the omentum, moderate/large volume ascites, splenomegaly, and mesenteric edema (all p≥0.058). Conclusion: Abnormal signal on DWI, hyperenhancement, and convex outer contour are helpful MRI features to differentiate malignant from benign omental thickening. | |
| 540 | |a Springer Science+Business Media New York, 2014 | ||
| 690 | 7 | |a Cirrhosis |2 nationallicence | |
| 690 | 7 | |a Omental caking |2 nationallicence | |
| 690 | 7 | |a Portal hypertension |2 nationallicence | |
| 690 | 7 | |a Peritoneal carcinomatosis |2 nationallicence | |
| 700 | 1 | |a Doshi |D Ankur |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Campbell |D Naomi |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Hajdu |D Cristina |u Department of Pathology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 700 | 1 | |a Rosenkrantz |D Andrew |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | |
| 773 | 0 | |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/5(2015-06-01), 1157-1163 |x 0942-8925 |q 40:5<1157 |1 2015 |2 40 |o 261 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s00261-014-0259-x |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/s00261-014-0259-x |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Doshi |D Ankur |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Campbell |D Naomi |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Hajdu |D Cristina |u Department of Pathology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rosenkrantz |D Andrew |u Department of Radiology, NYU School of Medicine, NYU Langone Medical Center, 550 First Avenue, 10016, New York, NY, USA |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Abdominal Imaging |d Springer US; http://www.springer-ny.com |g 40/5(2015-06-01), 1157-1163 |x 0942-8925 |q 40:5<1157 |1 2015 |2 40 |o 261 | ||