Comparison of gadolinium chelates with manganese-DPDP for liver lesion detection and characterization: preliminary results.
Nonspecific extracellular gadolinium chelate (NEGd) was prospectively compared with managanese (Mn)-DPDP (Mn) for the detection and characterization of focal liver lesions of various histology. Seventeen patients with known or suspected focal liver lesions underwent NEGd and Mn-enhanced studies at 1.5 T. Study findings were correlated with histology (five patients), computed tomography (CT) examinations (17 patients), and 4- to 13-month imaging follow-up by CT and/or MR (five patients). NEGd studies were performed as serial postcontrast spoiled gradient echo (SGE) sequences, and Mn studies were performed as SGE sequences 15 and 30 min postocontrast and T1-weighted, fat-suppressed spin echo at 16 min. NEGd and Mn images were prospectively interpreted in a separate blinded fashion. Lesion detection and characterization were determined. NEGd and Mn-enhanced images demonstrated 61 and 49 lesions, respectively (p = .1, NS). A total of 60 and 33 lesions were characterized on NEGd and Mn images, respectively, which was significantly different (p = .008). No differences were observed for the detection and characterization of liver metastases; whereas there was a trend for superior detection and characterization for hepatocellular carcinoma with NEGA.
Kettritz
U
U
Department of Radiology, University of North Carolina at Chapel Hill 27599, USA.
Schlund
J F
JF
Wilbur
K
K
Eisenberg
L B
LB
Semelka
R C
RC
D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis; D003287:Contrast Media; D003560:Cysts / Q000175:diagnosis; D004492:Edetic Acid / Q000031:analogs & derivatives*; D005260:Female; D005682:Gadolinium; D019786:Gadolinium DTPA; D006391:Hemangioma / Q000175:diagnosis; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000556:secondary; D008279:Magnetic Resonance Imaging; D008297:Male; D008345:Manganese; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid / Q000031:analogs & derivatives; D011446:Prospective Studies; D011732:Pyridoxal Phosphate / Q000031:analogs & derivatives*; D014057:Tomography, X-Ray Computed
D003287:Contrast Media; D009942:Organometallic Compounds; D008345:Manganese; D011732:Pyridoxal Phosphate; D004369:Pentetic Acid; C064925:gadodiamide; D004492:Edetic Acid; D005682:Gadolinium; D019786:Gadolinium DTPA; C060076:N,N'-bis(pyridoxal-5-phosphate)ethylenediamine-N,N'-diacetic acid