the optimization of magnetic resonance imaging pulse sequences in order to better detection of multiple sclerosis plaques
نویسندگان
چکیده
background and objective: magnetic resonance imaging (mri) is the most sensitive technique to detect multiple sclerosis (ms) plaques in central nervous system. in some cases, the patients who were suspected to ms, whereas mri images are normal, but whether patients don’t have ms plaques or mri images are not enough optimized enough in order to show ms plaques? the aim of the current study is evaluating the efficiency of different mri sequences in order to better detection of ms plaques. materials and methods: in this cross-sectional study which was performed at shohada-e tajrish in tehran - iran hospital between october, 2011 to april, 2012, included 20 patients who suspected to ms disease were selected by the method of random sampling and underwent routine brain pulse sequences (axial t2w, axial t1w, coronal t2w, sagittal t1w, axial flair) by siemens, avanto, 1.5 tesla system. if any lesion which is suspected to the ms disease was observed, additional sequences such as: sagittal flair fat sat, sagittal pdw-fat sat, sagittal pdw-water sat was also performed. results: this study was performed in about 52 lesions and the results in more than 19 lesions showed that, for the subcortical and infratentorial areas, pdww sequence with fat suppression is the best choice, and in nearly 33 plaques located in periventricular area, flair fat sat was the most effective sequence than both pdw fat and water suppression pulse sequences. conclusion: although large plaques may visible in all images, but important problem in patients with suspected ms is screening the tiny ms plaques. this study showed that for revealing the ms plaques located in the subcortical and infratentorial areas, pdw-fat sat is the most effective sequence, and for ms plaques in the periventricular area, flair fat sat is the best choice.
منابع مشابه
The Optimization of Magnetic Resonance Imaging Pulse Sequences in Order to Better Detection of Multiple Sclerosis Plaques
Background and objective: Magnetic resonance imaging (MRI) is the most sensitive technique to detect multiple sclerosis (MS) plaques in central nervous system. In some cases, the patients who were suspected to MS, Whereas MRI images are normal, but whether patients don’t have MS plaques or MRI images are not enough optimized enough in order to show MS plaques? The aim of the current study is ...
متن کاملThe Optimization of Magnetic Resonance Imaging Pulse Sequences in Order to Better Detection of Multiple Sclerosis Plaques
BACKGROUND AND OBJECTIVE Magnetic resonance imaging (MRI) is the most sensitive technique to detect multiple sclerosis (MS) plaques in central nervous system. In some cases, the patients who were suspected to MS, Whereas MRI images are normal, but whether patients don't have MS plaques or MRI images are not enough optimized enough in order to show MS plaques? The aim of the current study is eva...
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Magnetic resonance imaging (MRI) has been shown to be far more sensitive than computed tomography (CT) in the detection of multiple sclerosis plaques within the brain. Unlike CT, MRI is also able to detect multiple sclerosis in the brainstem and cerebellum. This report is the first description of MRI of multiple sclerosis plaques within the cervical spinal cord. Twenty-one patients with clinica...
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متن کاملcomparison of diffuse weighted imaging and fluid attenuation inversion recovery sequences of mri in brain multiple sclerosis plaques detection
purpose: suitable magnetic resonance imaging (mri) techniques from conventional to new devices can help physicians in diagnosis and follow up of multiple sclerosis (ms) patients. the aim of present research was to compare effectiveness of fluid attenuation inversion recovery (flair) sequence of conventional mri and diffuse weighted imaging (dwi) sequence as a new technique in detection of brain...
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عنوان ژورنال:
journal of biomedical physics and engineeringجلد ۲۰۱۲، شماره ۱۲، صفحات ۰-۰
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