Haimerl, Michael and Waechtler, Max and Platzek, Ivan and Mueller-Wille, Rene and Niessen, Christoph and Hoffstetter, Patrick and Schreyer, Andreas Georg and Stroszczynski, Christian and Wiggermann, Philipp (2013) Added value of Gd-EOB-DTPA-enhanced Hepatobiliary phase MR imaging in evaluation of focal solid hepatic lesions. BMC MEDICAL IMAGING, 13: 41. ISSN 1471-2342,
Full text not available from this repository. (Request a copy)Abstract
Background: Correct characterization of focal solid hepatic lesions has always been a challenge and is of great diagnostic and therapeutic relevance. The purpose of this study was to determine the added value of hepatobiliary phase images in Gd-EOB-DTPA-enhanced magnetic resonance imaging (MRI) for differentiating focal solid hepatic lesions. Methods: In this retrospective trial 84 consecutive patients underwent Gd-EOB-DTPA-enhanced MR examinations. MRI was conducted for 64 patients with malignant focal hepatic lesions (34 hepatocellular carcinoma (HCC), 30 metastases) and for 20 patients with benign hepatic lesions (14 focal nodular hyperplasia (FNH), 3 adenoma, 3 hemangioma). Five radiologists independently reviewed three sets of MR images by means of a 5-point confidence scale from score 1 (definitely benign) to score 5 (definitely malignant): set 1: unenhanced images; set 2: unenhanced and Gd-EOB-DTPA-enhanced dynamic images; set 3: hepatobiliary phase images in addition to set 2. Accuracy was assessed by the alternative free-response receiver operating characteristic curve (A(z)) and the index of diagnostic performance was calculated. Results: Diagnostic accuracy was significantly improved by the addition of Gd-EOB-DTPA-enhanced dynamic images: A(z) in set 1 was 0.708 and 0.833 in set 2 (P = 0.0002). The addition of hepatobiliary phase images increased the A(z) value to 0.941 in set 3 (set 3 vs set 2, P < 0.0001; set 3 vs set 1, P < 0.0001). The index of diagnostic performance was lowest in set 1 (45%), improved in set 2 (71%), and highest in set 3 (94%). Conclusions: Hepatobiliary phase images obtained after Gd-EOB-DTPA-enhanced dynamic MRI improve the differentiation of focal solid hepatic lesions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SMALL HEPATOCELLULAR CARCINOMAS; LIVER-LESIONS; LESS-THAN-OR-EQUAL-TO-2 CM; NODULAR HYPERPLASIA; DIAGNOSTIC EFFICACY; CONTRAST AGENT; CT; METASTASES; CIRRHOSIS; SAFETY; Magnetic resonance imaging; Focal hepatic lesions; Gd-EOB-DTPA-enhanced MR imaging; Hepatobiliary; Diagnostic performance; Characterization |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Röntgendiagnostik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Mar 2020 10:18 |
| Last Modified: | 23 Mar 2020 10:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/15557 |
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