Differentiation of adrenal masses with MR imaging: comparison of techniques.

Reinig, J W; Stutley, Jennifer E.; Leonhardt, C M; Spicer, Kenneth; Margolis, Mitchell L.; Caldwell, Curtis

doi:10.1148/radiology.192.1.8208962

Cited by 127 publications

(36 citation statements)

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“…Henkelman et al ( 5 ) showed four different T, components for tendon at 2, 8,23, and 56 ms. The first measured data point occurred atsimilar values for the T2 components in tendon and also demonstrated a temperature dependence.…”

Section: Introductionmentioning

confidence: 99%

MR Spectroscopic imaging of collagen: Tendons and knee menisci

Gold¹,

Pauly²,

Macovski³

et al. 1995

Magnetic Resonance in Med

130

129

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Water molecules associated with collagen have short transverse (T2) relaxation times. Projection-reconstruction techniques are able to achieve an echo time (TE) much shorter than conventional techniques, allowing imaging of tissues with T2 < 5 ms. Using these techniques, a conventional 1.5-T MRI human imaging system can directly image collagen-associated water from knee menisci and tendons in normal volunteers and patients. Long-T2 suppression improves the contrast between these structures and the surrounding tissue with long-T2 relaxation times. Spectroscopic imaging provides improved lipid/water registration and information about chemical composition and relaxation times. Direct imaging of tendons and menisci may provide more information about these structures and provide a new way to assess both injury and repair.

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Section: Introductionmentioning

confidence: 99%

MR Spectroscopic imaging of collagen: Tendons and knee menisci

Gold¹,

Pauly²,

Macovski³

et al. 1995

Magnetic Resonance in Med

130

129

View full text Add to dashboard Cite

show abstract

“…Several reports have suggested other strategies to characterize adrenal masses on cross-sectional images, including evaluation of lesion size, morphologic characteristics, attenuation measurements on precontrast and postcontrast CT scans, and signal intensity (SI) characteristics on postgadolinium MR images (10). Despite these efforts, no generally accepted method has evolved to identify reliably the subset of adrenal adenomas with lower amounts of lipid (11)(12)(13)(14)(15).The purpose of this study was to evaluate the usefulness of the immediate and the 45-second postgadolinium spoiled gradient echo (SGE) MR sequences for differentiation of adrenal adenomas from malignant adrenal tumors. …”

mentioning

confidence: 99%

Adrenal adenomas: Characteristic postgadolinium capillary blush on dynamic MR imaging

Chung¹,

Semelka

Martín³

2001

J. Magn. Reson. Imaging

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“…Ichikawa et al [39] berichten über eine Sensitivität von 92% und eine Spezifität von 95% bei Anwendung dieses Kriteriums. Die CSI scheint bisher von allen untersuchten MRT-Techniken am genauesten zu sein (Abbildung 1) [37,[40][41][42].…”

Section: Magnetresonanztomographie (Mrt)unclassified

Computertomographie und Magnetresonanztomographie in der Differentialdiagnose von Nebennierenraumforderungen

et al. 2004

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Adrenal gland tumors are often incidental findings during imaging of the upper abdomen. In the majority of cases, benign adrenal gland tumors, especially nonfunctioning adenomas, are diagnosed, although the evaluation of dignity is essential in order to avoid unnecessary biopsy and tumor extirpation. Lipid-containing adrenocortical adenomas and nonadenomas can be differentiated with high diagnostic accuracy and specificity by computed tomography (CT) and magnetic resonance imaging (MRI). The fat content of these lesions can be correlated with CT attenuation values or with signal decrease in chemical shift imaging in MRI. Furthermore, low-fat adenomas can be distinguished from nonadenomas with delayed contrast enhancement and washout characterization. For the differentiation of non-fat-containing nonadenomas (metastases, lymphoma, pheochromocytoma, and inflammatory processes), morphological imaging criteria in CT and MRI (signal alterations, contrast media enhancement), clinical signs and laboratory test are essential in order to establish the diagnosis. The localization of functioning adenomas can be easily performed with CT and MRI. Both imaging techniques reveal typical findings of lesions-like cysts and myelolipomas.

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Differentiation of adrenal masses with MR imaging: comparison of techniques.

Abstract: Although a chemical shift imaging technique and a T2*-weighted sequence helped correctly differentiate among the groups of adrenal masses, the degree of overlap suggests that it is still difficult to evaluate disease in individual patients.

Cited by 127 publications

References 0 publications

MR Spectroscopic imaging of collagen: Tendons and knee menisci

MR Spectroscopic imaging of collagen: Tendons and knee menisci

Adrenal adenomas: Characteristic postgadolinium capillary blush on dynamic MR imaging

Computertomographie und Magnetresonanztomographie in der Differentialdiagnose von Nebennierenraumforderungen

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