Objective To evaluate the imaging quality of Coronary MRA(CMRA)from targeted volume vs whole heart acquisitions in visualizing coronary arteries with qualitative ***:Twenty volunteers were examined with CMRA at 3T by ...
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Objective To evaluate the imaging quality of Coronary MRA(CMRA)from targeted volume vs whole heart acquisitions in visualizing coronary arteries with qualitative ***:Twenty volunteers were examined with CMRA at 3T by using targeted volume vs whole heart *** and quantitative coronary of CMRA was performed in 20 volunteers by using"Soap-Bubble"*** imaging quality score was assessed according visualizing and the average vessel length、diameter and sharpness of coronary arteries can be *** Using targeted volume acquisition,the average vessel length of RCA,LM+LAD and LCX was 112±31mm、98±14mm、51±11mm,the average vessel diameter was 3.0±0.4mm、2.9±0.3mm、3.0±0.3mm and the sharpness was 48±11%、44±13%、43±15%.Using whole heart acquisition,the average vessel length of RCA,LM+LAD and LCX was106±24mm、94±15mm、47±14mm,the average vessel diameter was 3.2±0.3mm、3.0±0.3mm、3.1±0.2mm and the sharpness was 37±14%、36±9%、34±13%.There is a significantly difference in sharpness and imaging quality score between targeted volume and whole heart acquisition(P<0.05),but no obviously difference in length and diameter(P>0.05).Conclusion The targeted volume acquisition scan provided sharper images and better overall image quality score than whole heart *** from targeted volume acquisition is recommended.
Purpose Retrospective analysis of 1,2-dichloroethane toxic encephalopathy with paint using magnetic resonance imaging(MRI)*** and Method12 patients with 1,2-DCE toxic encephalopathy disease(8 males and 4 females,aged ...
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Purpose Retrospective analysis of 1,2-dichloroethane toxic encephalopathy with paint using magnetic resonance imaging(MRI)*** and Method12 patients with 1,2-DCE toxic encephalopathy disease(8 males and 4 females,aged from 23 to 60 years old)were treated in our hospital from February 2006 to June *** all had work history of 1,2-DCE exposure(types of footwear adhesive workers).Minimum hours of work over two months after the longest two years of symptoms,February 2009 to 2013 in June with 15 cases of toxic encephalopathy in patients with paint in my *** 12 males and 3 females,aged 19-60 years *** MRI scans of the head on GE MR machine,spin echo(SE)sequences imaging,T1-weighted imaging(T1WI):repetition time(TR)300ms,echo time(TE)15ms,T2-weighted imaging(T2WI):TR 4000ms,TE 108ms,fluid-attenuated inversion recovery sequence(FLAIR):TR 8000ms,TE 96ms,inversion time 2000ms;each of seven cases of patients underwent enhanced MR scan contrast agent gadolinium-DTPA using15ml,thickness 8mm,layer from ***15 cases with toxic encephalopathy paint and 12 cases with 1,2-dichloroethane toxic encephalopathy white matter showed different forms of abnormal signal,T1WI had low signal,T2WI had high signal,FLAIR also demonstrated slight *** The signal of white matter of patients with 1,2-dichloroethane toxic encephalopathy with paint was *** relevance/Application MRI is valueable to differentiate and diagnose the toxic encephalopathy with1,2-dichloroethane toxic encephalopathy with paint.
OBJECTIVE:Internet gaming addiction(IGA),as a subtype of internet addiction disorder(IAD),is rapidly becoming a prevalent mental health concern around the *** pathogenesis of IAD,however,remains *** study investigated...
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OBJECTIVE:Internet gaming addiction(IGA),as a subtype of internet addiction disorder(IAD),is rapidly becoming a prevalent mental health concern around the *** pathogenesis of IAD,however,remains *** study investigated the brain functions in IGA patients with task-state f ***:19 IGA and 19 matched healthy controls participated in this *** all received the stimuli of internet video game play,while the 3.0 Tesla MRI was used to record the results of echo plannar ***:The internet video game play markedly activated IGA group and control *** actived brain regions of the controls included right superior frontal gyrus,right middle frontal,right inferior frontal gyrus,left insular lobe and right *** group showed actived brain regions that mainly distributed over right medial frontal gyrus,right middle frontal gyrus,superior frontal gyrus,bilateral superior temporal gyrus,left transverse temporal gyrus,right inferior parietal gyrus,right inferior parietal lobule,right precuneus,right posterior *** with control group,IGA group showed increased activation in right superior parietal lobule,right insular lobe,right precuneus,right cingulated gyrus,right superior temporal gyrus,and left *** is a significantly difference in number of activated voxels in the two *** average of 1078 voxels was activated in IGA group while only 232 voxels in control ***:Cue-induced internet video game play activates the vision,space,attention and execution centers composed of occipital temporal parietal and frontal *** brain function is noted in IGA subjects with hypofunction of the frontal *** subjects show laterality activation of right cerebral hemisphere.
Objective:To investigate the appearance of small intestine wall layers of the normal canine on clinical 3.0T MR and to compare with the histopathological ***:Randomly select five normal Beagles,scanned by 3.0T MR,with...
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Objective:To investigate the appearance of small intestine wall layers of the normal canine on clinical 3.0T MR and to compare with the histopathological ***:Randomly select five normal Beagles,scanned by 3.0T MR,with TORSO body coil,T2-weighted fast spin echo with or without fat saturation,respiratory *** tissue samples of duodenum,jejunum and ileum for HE and Masson *** the number of small intestine intestinal wall layers,thickness and contrast-to-noise ratios of each layer on MR *** MR appearance with histological results,by statistical analysis of single factor analysis of ***:T2-weighted images show four different intestinal wall layers of duodenum or jejunum,of which the signal intensity is isointesnsity,high signal,low signal and isointensity from inside to *** inner two layers are corresponding to histological mucous;the outer two layers are submucosa and muscularis.T2-weighted images display three different layers of ileum,mucous layer is high signal,submucosa low signal,muscularis *** the inside to outside,the CNR of each layer of small intestine are duodenum(26.3±1.6,31.6±1.6,14.6±1.9,21.5±1.3),jejunum(25.4±2.3,31.9±3.1,18.2±1.7,24.7±3.0),ileum(31.5±2.6,15.0±1.9,21.4±4.0).The thickness of mucosa,submucosa and muscular layer are duodenum(3.52±0.08mm,0.82±0.07mm,1.22±0.07mm),jejunum(2.95±0.08mm,0.67±0.06mm,0.95±0.03 mm),ileum(1.68±0.12mm,0.46±0.08mm,1.20±0.08mm).Conclusion:3.0T magnetic resonance can distinctly display the canine small intestinalwall layers in vivo,corresponding to histological three or four *** the basis of this study,there is a promising method to evaluate the intestinal wall changes of the gastrointestinal disease,and the results would have great potential value in the future.
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