[General review of the value of hepatic MRI in the diagnosis and preoperative staging of liver metastasis from colon and rectum cancer].
Hepatic resection of secondary liver neoplasms is currently the only potentially curative therapy for patients with primary colorectal carcinoma. Long-term survival is closely related to stage, regardless of the number, size and distribution of liver lesions. Preoperative detection of liver metastases is crucial in patient staging and imaging techniques must be as accurate as possible to evaluate whether hepatic resection can be performed. Among the various strategies applied to the preoperative detection of liver metastases, CT with intra-arterial portography (CTAP) has been found to be the most sensitive technique. It is an invasive evaluation with a reported sensitivity ranging from 81 to 94% but with 6 to 15% of false-positive results. Recent studies demonstrate that MRI with superparamagnetic iron oxide has an equivalent sensitivity and specificity to CTAP. This paper reviews the technique of MRI, evaluates its sensitivity and specificity, and presents the advantages and draw backs of the technique.
Borson
O
O
Fédération des Spécialités Digestives, Hôpital Edouard-Herriot, Lyon.
Frering
V
V
Gaillard
C
C
Pellet
O
O
Barral
F G
FG
Valette
P J
PJ
D003110:Colonic Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D008279:Magnetic Resonance Imaging; D009367:Neoplasm Staging / Q000379:methods; D010347:Patient Care Planning; D012004:Rectal Neoplasms / Q000473:pathology*; D012680:Sensitivity and Specificity
Intérêt de l'IRM hépatique dans le diagnostic et le bilan préopératoire des métastases hépatiques des cancers colo-rectaux.