Detection of Middle Ear Cholesteatoma by Diffusion-Weighted MR Imaging: Multishot Echo-Planar Imaging Compared with Single-Shot Echo-Planar Imaging
نویسندگان
چکیده
منابع مشابه
Detection of middle ear cholesteatoma by diffusion-weighted MR imaging: multishot echo-planar imaging compared with single-shot echo-planar imaging.
BACKGROUND AND PURPOSE Previous reports have shown that DWI is useful in detecting cholesteatoma. SS-EPI is the most widely used DWI technique. However, SS-EPI may have susceptibility artifacts due to field inhomogeneity in the imaging of the temporal bone region. Our purpose was to prospectively evaluate the advantage of MS-EPI for the diagnosis of middle ear cholesteatoma by comparing it with...
متن کاملSingle-shot, turbo spin-echo, diffusion-weighted imaging versus spin-echo-planar, diffusion-weighted imaging in the detection of acquired middle ear cholesteatoma.
Diagnosis of acquired middle ear cholesteatoma on MR imaging is mostly done on late postgadolinium T1-weighted MR images and/or echo-planar (EPI) diffusion-weighted (DWI) MR images. We describe the appearance of a case of a complicated attical middle ear cholesteatoma on single-shot (SS) turbo spin-echo (TSE) DWI compared with EPI-DWI. This case suggests a higher reliability of SS TSE-DWI in th...
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OBJECTIVE The purpose of this study was to compare the image quality of standard single-shot echo-planar imaging (ss-EPI) and that of readout-segmented EPI (rs-EPI) in patients with breast cancer. MATERIALS AND METHODS Seventy-one patients with 74 breast cancers underwent both ss-EPI and rs-EPI. For qualitative comparison of image quality, three readers independently assessed the two sets of ...
متن کاملValue of Non Echo-Planar Diffusion-Weighted Magnetic Resonance Imaging in the Detection of Middle Ear Cholesteatoma
OBJECTIVE: This study was conducted to determine the clinical value of diffusion-weighted magnetic resonance imaging (MRI) (DWI) in detecting the presence of cholesteatoma. MATERIALS AND METHODS: Fifty-six patients (21 female and 35 male; mean age, 43 years old) who underwent middle ear surgery were referred to the Radiology Department for preoperative DWI study. MRI (1.5-T) was performed using...
متن کاملNon echo planar, diffusion-weighted magnetic resonance imaging (periodically rotated overlapping parallel lines with enhanced reconstruction sequence) compared with echo planar imaging for the detection of middle-ear cholesteatoma.
OBJECTIVES We evaluated use of the periodically rotated overlapping parallel lines with enhanced reconstruction diffusion-weighted imaging sequence, compared with conventional echo planar magnetic resonance imaging, in the detection of middle-ear cholesteatoma. MATERIAL AND METHODS Sixteen patients awaiting second-stage combined approach tympanoplasty and three patients awaiting first-stage c...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2011
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a2651