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Erschienen in: Abdominal Radiology 5/2010

01.10.2010

Detection of colo-rectal liver metastases: prospective comparison of contrast enhanced US, multidetector CT, PET/CT, and 1.5 Tesla MR with extracellular and reticulo-endothelial cell specific contrast agents

verfasst von: Pier Paolo Mainenti, Marcello Mancini, Ciro Mainolfi, Luigi Camera, Simone Maurea, Antonietta Manchia, Michela Tanga, Francesco Persico, Pietro Addeo, Dario D’Antonio, Antonio Speranza, Luigi Bucci, Giovanni Persico, Leonardo Pace, Marco Salvatore

Erschienen in: Abdominal Radiology | Ausgabe 5/2010

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Abstract

Background

To compare contrast-enhanced US (CE-US), multidetector-CT (MDCT), 1.5 Tesla MR with extra-cellular (Gd-enhanced) and intracellular (SPIO-enhanced) contrast agents and PET/CT, in the detection of hepatic metastases from colorectal cancer.

Materials and methods

A total of 34 patients with colo-rectal adenocarcinoma underwent preoperatively CE-US, MDCT, Gd- and SPIO-enhanced MR imaging (MRI), and PET/CT. Each set of images was reviewed independently by two blinded observers. The ROC method was used to analyze the results, which were correlated with surgical findings, intraoperative US, histopathology, and MDCT follow-up.

Results

A total of 57 hepatic lesions were identified: 11 hemangiomas, 29 cysts, 1 focal fatty liver, 16 metastases (dimensional distribution: 5/16 < 5 mm; 3/16 between 5 mm and <10 mm; 8/16 ≥ 10 mm). Six of 34 patients were classified as positive for the presence of at least one metastasis. Considering all the metastases and those ≥10 mm, ROC areas showed no significant differences between Gd- and SPIO-enhanced MRI, which performed significantly better than the other modalities (P < 0.05). Considering the lesions <10 mm, ROC areas showed no significant differences between all modalities; however MRI presented a trend to perform better than the other techniques. Considering the patients, ROC areas showed no significant differences between all the modalities; however PET/CT seemed to perform better than the others.

Conclusions

Gd- and SPIO-enhanced MRI seem to be the most accurate modality in the identification of liver metastases from colo-rectal carcinoma. PET/CT shows a trend to perform better than the other modalities in the identification of patients with liver metastases.
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Metadaten
Titel
Detection of colo-rectal liver metastases: prospective comparison of contrast enhanced US, multidetector CT, PET/CT, and 1.5 Tesla MR with extracellular and reticulo-endothelial cell specific contrast agents
verfasst von
Pier Paolo Mainenti
Marcello Mancini
Ciro Mainolfi
Luigi Camera
Simone Maurea
Antonietta Manchia
Michela Tanga
Francesco Persico
Pietro Addeo
Dario D’Antonio
Antonio Speranza
Luigi Bucci
Giovanni Persico
Leonardo Pace
Marco Salvatore
Publikationsdatum
01.10.2010
Verlag
Springer-Verlag
Erschienen in
Abdominal Radiology / Ausgabe 5/2010
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-009-9555-2

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