| Imaging of small hepatic metastases of colorectal carcinoma: how to use superparamagnetic iron oxide-enhanced magnetic resonance imaging in the multidetector-row computed tomography age? | |
| | |
MedLine Citation:
|
PMID: 19346857 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: To compare the accuracy of dynamic contrast-enhanced multidetector-row computed tomography (CT) and superparamagnetic iron oxide-enhanced magnetic resonance imaging (MRI) in the evaluation of small hepatic metastases of colorectal carcinoma. MATERIALS AND METHODS: Of 94 patients with colorectal carcinoma analyzed, 76 hepatic metastases (<2 cm) were diagnosed in 17 patients. Superparamagnetic iron oxide (SPIO)-magnetic resonance (precontrast and postcontrast MRI) and dynamic contrast-enhanced multidetector-row CT (dynamic CT [precontrast, arterial, portal-venous, and delayed phase]) were evaluated. The alternative free-response receiver operating characteristic analysis was performed, and the sensitivities and positive predictive values were analyzed. RESULTS: The Az values and sensitivities of portal-venous phase CT, dynamic CT, and SPIO-MRI (0.62/59%, 0.69/61%, and 0.67/61%) were identical. The mean positive predictive value of dynamic CT (82%) was inferior to that of SPIO-MRI (91%). CONCLUSIONS: The diagnostic ability of dynamic CT is identical to that of SPIO-MRI in Az value and sensitivity. Superparamagnetic iron oxide-MRI should be recommended only if an equivocal lesion is detected by dynamic CT. |
| | |
Authors:
|
Utaroh Motosugi; Tomoaki Ichikawa; Hiroto Nakajima; Hironobu Sou; Mika Sano; Katsuhiro Sano; Tsutomu Araki; Hiroshi Iino; Hideki Fujii; Tadao Nakazawa |
Related Documents
:
|
9059417 - Functioning islet cell tumor of the pancreas. localization with dynamic spiral ct. 11471617 - Comparison of dynamic contrast-enhanced mri with who tumor grading for gliomas. 15788577 - Focal eosinophilic necrosis versus metastasis in the liver: the usefulness of two-phase... 11409717 - Test-retest reliability of dsc mri cbv mapping in healthy volunteers. 10966687 - Rings, slings, and other things: vascular compression of the infant trachea updated fro... 21873267 - 99mtc-anti-tnf-{alpha} scintigraphy in ra: a comparison pilot study with mri and clinic... |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Journal of computer assisted tomography Volume: 33 ISSN: 1532-3145 ISO Abbreviation: J Comput Assist Tomogr Publication Date: 2009 Mar-Apr |
Date Detail:
|
Created Date: 2009-04-06 Completed Date: 2009-04-20 Revised Date: 2009-11-19 |
Medline Journal Info:
|
Nlm Unique ID: 7703942 Medline TA: J Comput Assist Tomogr Country: United States |
Other Details:
|
Languages: eng Pagination: 266-72 Citation Subset: IM |
Affiliation:
|
Department of Radiology, University of Yamanashi, Chuo-shi, Yamanashi-ken, Japan. utaroh-motosugi@nifty.com |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Colorectal Neoplasms / pathology Contrast Media / diagnostic use False Negative Reactions Female Ferrosoferric Oxide Humans Image Enhancement / methods Iohexol / diagnostic use Iron / diagnostic use Liver Neoplasms / diagnosis*, secondary* Magnetic Resonance Imaging / methods* Middle Aged Oxides / diagnostic use Predictive Value of Tests Sensitivity and Specificity Tomography, X-Ray Computed |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media; 0/Oxides; 119683-68-0/ferumoxides; 1317-61-9/Ferrosoferric Oxide; 66108-95-0/Iohexol; 7439-89-6/Iron |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Transient hepatic attenuation differences and focal liver lesions: sump effect due to primary arteri...
Next Document: Multidetector row computed tomographic gastrography findings after endoscopic submucosal dissection ...