| Dynamic gadolinium-enhanced MR imaging of pituitary adenomas: usefulness of sequential sagittal and coronal plane images. | |
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MedLine Citation:
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PMID: 11566239 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Dynamic magnetic resonance (MR) imaging for pituitary adenomas is usually performed in a coronal direction; however, small lesions between slices, or lesions located at the anterior or posterior aspect of the pituitary gland might be overlooked on MR images in only the coronal direction. The purpose of our study was to evaluate whether consecutive dynamic MR images in the coronal and sagittal planes improve detection of pituitary adenomas. Eighteen patients with pituitary microadenomas and nine with healthy pituitary glands were included in this study. MR images were performed with 1.5 T superconductive units and commercially-available head coils. After a 5 ml gadolinium contrast injection, eight serial dynamic sagittal images were obtained. Within 3 or 6 min, this was followed by a 10-15 ml gadolinium injection and acquisition of eight serial dynamic coronal images. Dynamic MR images and conventional noncontrast- and contrast-enhanced sagittal and coronal T1-weighted images were evaluated independently in a blind fashion by two neuroradiologists regarding the depiction of pituitary microadenomas. The sensitivities of dynamic enhanced MR imaging in the detection of microadenomas were 61.1% in sagittal direction, 72.2% in coronal direction respectively, and were superior to those of conventional noncontrast- and contrast-enhanced T1-weighted imaging (22.2-50%). The sensitivity of a combination of sagittal and coronal dynamic enhanced MR imaging for the detection of microadenomas was 88.9% and was superior to those of conventional noncontrast- and contrast-enhanced T1-weighted imaging combining sagittal and coronal directions (61.1%, 61.1%) (P<0.05, P<0.05, respectively). The specificity and accuracy of dynamic enhanced MR imaging with combination of sagittal and coronal images was 88.9% respectively. Dynamic gadolinium-enhanced MR imaging, especially using both sagittal and coronal planes, was concluded to be useful for the detection of pituitary microadenomas. |
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Authors:
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R Gao; H Isoda; T Tanaka; S Inagawa; H Takeda; Y Takehara; S Isogai; H Sakahara |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: European journal of radiology Volume: 39 ISSN: 0720-048X ISO Abbreviation: Eur J Radiol Publication Date: 2001 Sep |
Date Detail:
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Created Date: 2001-09-21 Completed Date: 2001-10-25 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8106411 Medline TA: Eur J Radiol Country: Ireland |
Other Details:
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Languages: eng Pagination: 139-46 Citation Subset: IM |
Affiliation:
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Department of Radiology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu 431-3192, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adenoma
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diagnosis* Adult Contrast Media Female Gadolinium DTPA / diagnostic use Humans Magnetic Resonance Imaging* Male Pituitary Neoplasms / diagnosis* Sensitivity and Specificity Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 122795-43-1/gadodiamide; 80529-93-7/Gadolinium DTPA |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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