Evaluation of the Accuracy of Gadobenate Dimeglumine-Enhanced MR Imaging in the Detection and Characterization of Focal Liver Lesions
Gianpaolo Pirovano1,
Angelo Vanzulli2,
Luis Marti-Bonmati3,
Luigi Grazioli4,
Riccardo Manfredi5,
Alina Greco6,
Nicolaus Holzknecht7,
Heike E. Daldrup-Link8,
Ernst Rummeny8,
Bernd Hamm9,
Valerie Arneson1,
Luigi Imperatori1,
Miles A. Kirchin1 and
Alberto Spinazzi1
1
Bracco, Medical and Regulatory Affairs, Via Egidio Folli 50, 20134 Milan,
Italy.
2
Department of Radiology, Scientific Institute S. Raffaele, University
Hospital, Via Olgettina 60, 20132 Milan, Italy.
3
Department of Radiology, Hospital Universitario Dr. Peset, Valencia,
Spain.
4
Il Servizio di Radiologia, Ente Ospedaliero «Spedali Civili»,
Piazzale Ospedale 1, 25100 Brescia, Italy.
5
Instituto di Radiologia, Policlinico «A. Gemelli», Largo A.
Gemelli 8, 00168 Roma, Italy.
6
MR Imaging Centre, Princess Grace Hospital, Ave. Pasteur, 98000 Monaco,
Principaute de Monaco.
7
Ludwig-Maximilians-Universität-München,
Institut für Radiologische Klinik, Klinikum
Marchioninistr. 15, 81377 München,
Germany.
8
Westfälische
Wilhelms-Universität
Münster, Institut
für Klinische Radiologie,
Röntgendiagnostik, A.-Schweitzer-Str. 33, 48129
Münster, Germany.
9
Institut für
Röntgendiagnostik, Medizinische
Fakultät der
Humboldt-Universität,
Charité, Schumannstr. 20/21, 10098 Berlin,
Germany.

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Fig. 1A. 68-year-old man with hepatic metastasis from pancreatic carcinoma.
Axial unenhanced breath-hold T1-weighted two-dimensional (2D) fast low-angle
shot (FLASH) image shows small hypointense lesion (arrow) in segment
VI of liver.
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Fig. 1B. 68-year-old man with hepatic metastasis from pancreatic carcinoma.
Axial unenhanced T2-weighted turbo spin-echo image reveals lesion as mildly
hyperintense mass (arrowhead).
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Fig. 1C. 68-year-old man with hepatic metastasis from pancreatic carcinoma.
On dynamic scanning, breath-hold T1-weighted 2D FLASH images obtained at 30
(C) and 90 sec (D) after contrast injection show lesion as
markedly hypointense. Hyperintense thin rim (small arrow, C)
has faded by 90-sec acquisition (D). Note large mass in tail of
pancreas (large arrow, C).
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Fig. 1D. 68-year-old man with hepatic metastasis from pancreatic carcinoma.
On dynamic scanning, breath-hold T1-weighted 2D FLASH images obtained at 30
(C) and 90 sec (D) after contrast injection show lesion as
markedly hypointense. Hyperintense thin rim (small arrow, C)
has faded by 90-sec acquisition (D). Note large mass in tail of
pancreas (large arrow, C).
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Fig. 1E. 68-year-old man with hepatic metastasis from pancreatic carcinoma.
Axial contrast-enhanced breath-hold T1-weighted 2D FLASH image obtained 90 min
after initiation of contrast administration reveals good delineation of lesion
against strongly enhanced normal liver parenchyma. Note target appearance of
lesion with hyperintense center, which is typical of metastasis.
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Fig. 2A. 66-year-old woman with hepatocellular carcinoma in cirrhotic liver.
Axial unenhanced breath-hold T1-weighted two-dimensional (2D) fast low-angle
shot (FLASH) image reveals 2.5-cm slightly hyperintense mass in segment VI of
liver (large arrow). Note thin hypointense rim corresponding to
histologically proven pseudocapsule and tiny hyperintense satellite lesion
(small arrow).
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Fig. 2B. 66-year-old woman with hepatocellular carcinoma in cirrhotic liver.
Axial unenhanced T2-weighted spin-echo image fails to reveal lesions.
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Fig. 2C. 66-year-old woman with hepatocellular carcinoma in cirrhotic liver.
On dynamic scanning, breath-hold T1-weighted 2D FLASH images obtained at 25
sec (C) and 90 sec (D) after contrast injection show larger
lesion as homogeneously hyperintense in C (arrow) but as
hypointense to liver in D (arrow).
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Fig. 2D. 66-year-old woman with hepatocellular carcinoma in cirrhotic liver.
On dynamic scanning, breath-hold T1-weighted 2D FLASH images obtained at 25
sec (C) and 90 sec (D) after contrast injection show larger
lesion as homogeneously hyperintense in C (arrow) but as
hypointense to liver in D (arrow).
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Fig. 2E. 66-year-old woman with hepatocellular carcinoma in cirrhotic liver.
Axial contrast-enhanced T1-weighted breath-hold 2D FLASH image obtained 90 min
after initiation of contrast administration reveals lesion as isointense to
enhanced normal liver parenchyma. Histologic analysis revealed extensive
intralesional fatty metaplasia.
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Fig. 3A. 55-year-old man with cavernous hemangioma. Axial unenhanced
T1-weighted spin-echo image shows large hypointense lesion in lateral part of
left lobe of liver (arrow).
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Fig. 3B. 55-year-old man with cavernous hemangioma. Axial unenhanced
T2-weighted spin-echo image reveals markedly homogeneous, hyperintense
lesion.
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Fig. 3C. 55-year-old man with cavernous hemangioma. On dynamic scanning,
breath-hold two-dimensional fast field echo images obtained at 30 sec
(C) and 7 min (D) after contrast injection reveal intense
peripheral nodular enhancement of lesion. By 7 min after injection almost
complete filling-in has occurred. Note only central portion of lesion remains
hypointense (arrow, D). Enhancement pattern is typical for
cavernous hemangioma.
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Fig. 3D. 55-year-old man with cavernous hemangioma. On dynamic scanning,
breath-hold two-dimensional fast field echo images obtained at 30 sec
(C) and 7 min (D) after contrast injection reveal intense
peripheral nodular enhancement of lesion. By 7 min after injection almost
complete filling-in has occurred. Note only central portion of lesion remains
hypointense (arrow, D). Enhancement pattern is typical for
cavernous hemangioma.
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Fig. 3E. 55-year-old man with cavernous hemangioma. Axial contrast-enhanced
T1-weighted spin-echo image obtained 60 min after initiation of contrast
administration reveals lesion as isointense or slightly hyperintense with
hypointense central portion against enhanced normal liver parenchyma
(arrow).
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