(kĕm-i'kăl shift)
Magnetic resonance artifact along the frequency axis caused by the difference in frequency between fat and water.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Fat suppression with short inversion time inversion-recovery and chemical-shift selective saturation: a dual STIR-CHESS combination prepulse for turbo spin echo pulse sequences.
Iwata et al., "Evaluation of normal fatty replacement of the thymus with chemical-shift MR imaging for identification of the normal thymus," Journal of Magnetic Resonance Imaging, vol.
Ciccone et al., "Differentiation of rebound and lymphoid Thymic hyperplasia from anterior mediastinal tumors with dual-echo chemical-shift MR imaging in adulthood: Reliability of the chemical-shift ratio and signal intensity index," Radiology, vol.
The CSI signal loss can be measured quantitatively, as the adrenal-to-spleen chemical-shift ratio, by dividing the lesion-to-spleen signal intensity ratios on the IP images by the OOP images.
Distinction between benign and malignant adrenal masses: Value of T1-weighted chemical-shift MR imaging.
Veltri, "Comparison of CT and chemical-shift MRI for differentiating thymoma from non-thymomatous conditions in myasthenia gravis: value of qualitative and quantitative assessment," Clinical Radiology, vol.
Combined late gadolinium-enhanced and double-echo chemical-shift MRI help to differentiate renal oncocytomas with high central T2 signal intensity from renal cell carcinomas.
Ernst, "An improved 2d magic-angle-turning pulse sequence for the measurement of chemical-shift anisotropy," Journal of Magnetic Resonance A, vol.
Second, the cohort included eight cases of thymic hyperplasia with diagnosis obtained through histology in four cases and chemical-shift magnetic resonance imaging (MRI) in the remaining cases.
At MR, intracellular lipid can be detected using chemical-shift imaging (CSI), which takes advantage of the differing resonant frequencies of protons in lipid and water molecules.
Characterization of the normal and hyperplastic thymus on chemical-shift MR imaging.

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