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Objective The aim of this study is to understand the impairment and compensation mechanism of brain function in untreated primary insomnia (PI) patients.The approach of fractional amplitude of low frequency fluctuation (fALFF) is used to analyze raw data between the PI patients and the normal control group in resting state using functional magnetic resonance imaging (fMRI).Methods Fifty-nine PI patients,admitted to our hospital from November 2015 to November 2016,and 47 age-,education-,and gender-matched normal healthy subjects were chosen in our study.Pittsburg sleep quality index (PSQI),insomnia severity index (ISI) were employed to evaluate the sleep quality.Self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were employed to evaluate the emotion.Resting state fMRI and fALFF analyses were used to compare the functional regional activities.The correlations of fALFF data with PSQI,SAS and SDS scores were analyzed.Results In PI patients,2 had mild to moderate insomnia,41 had moderate insomnia,and 16 had serious insomnia.ISI scores in the normal healthy subjects were less than 7.The PSQI,SAS,SDS and ISI scores in the PI patients were significantly higher than those in the normal healthy subjects (P＜0.05).As compared with the control group,the PI group had significantly increased fALFF value in the right hippocampus (HIP),right parahippocampa gyms,right amygdala,and bilateral thalamus.The fALFF value was positively correlated PSQI,SASandSDSscores (r=0.582,P=0.000;r=0.617,P=0.000;r=0.653,P=0.000).Conclusion Some brain regions in the PI patients are abnormal in the resting state,which can reflex functional regional activities of PI patients.
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[Objective]To investigate the value of degree centrality(DC),a novel resting-state fMRI parameter,in voxel-wise whole-brain functional networks analysis in primary insomnia(PI)after acupuncture therapy.[Methods]The resting state fMRI were performed in 29 PI patients and 22 age,education,and sex-matched normal healthy subjects. Analysis of DC map changes between the two patient groups and the control group were performed by two sample t test.(threshold at P<0.05).[Results]Compared with the control group,patients with PI showed significantly reduced DC value in middle temporal gyrus(MTG. R);hippocampus(HIP. B);parahippocampal gyrus(PHG. R);putamen(PUT. R);cuneus(CUN. L).[Conclusions]Changes of DC value occurred in some region of brain in the PI patient groups when compared with the control group. It was indicated that DC ,as a novel resting-state fMRI parameter in the voxel-wise whole-brain functional networks ,might be an appealing alternative approach for further study on pathologic and neuropsychological states of PI.
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<p><b>OBJECTIVE</b>To investigate the changes in whole brain gray matter volume in patients with trigeminal neuralgia using voxel-based morphometry (VBM).</p><p><b>METHODS</b>Twenty-eight patients with trigeminal neuralgia and 28 healthy controls underwent magnetic resonance imaging with a Philips 1.5T MRI scanner. VBM was used to compare the structural differences in the whole brain gray matter between the two groups based on the DARTEL after data preprocessing with SPM8 software package.</p><p><b>RESULTS</b>Compared with the healthy controls, the patients with trigeminal neuralgia presented with decreased gray matter volume in several brain regions including the bilateral middle temporal gyrus, bilateral superior/middle frontal gyrus, left pre-/post-central gyrus, right fusiform and anterior cingulate gyrus.</p><p><b>CONCLUSIONS</b>Patients with trigeminal neuralgia had abnormal gray matter volume in some brain regions associated with perception and processing of pain sensation. These changes may provide clues for further exploration of the neuropathogenic basis of trigeminal neuralgia.</p>
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Humans , Brain Mapping , Case-Control Studies , Frontal Lobe , Pathology , Gray Matter , Pathology , Magnetic Resonance Imaging , Temporal Lobe , Pathology , Trigeminal Neuralgia , PathologyABSTRACT
Objective To explore the regional spontaneous activity changes in patients with trigeminal neuralgia (TN) using resting-state functional MRI.Methods Resting-state functional MRI datasets were acquired from 30 patients with TN,admitted to our hospital from July 2012 to December 2013,and 20 age,gender and education level matched healthy controls.The regional homogeneity (ReHo) method and independent-sample t-test were used to compare the brain activity differences between these two groups.Results Decreased ReHo values in the left temporal,left pam-hippocampal,as well as increased ReHo values in the bilateral thalamus and left parietal lobe were noted in TN patients as compared with those in the healthy controls.Conclusions The abnormal spontaneous activity exists in TN patients,and these abnormal regions are mainly associated with the perception and processing of pain.In addition,spontaneous activity alternation might promote the exploration of mechanism of TN.
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Objective To understand the pathological mechanism of brain function in irritable bowel syndrome (IBS) patients by analyzing the fraction amplitude of low-frequency fluctuation (fALFF) of functional magnetic resonance imaging (fMRI) raw data in resting state.Methods The fMRI at resting state was performed in 21 IBS patients and 21 age-,education-and sex-matched normal healthy subjects,collected in our hospital from August 2010 to April 2012.The scan sequence in this study was single-shot echo planar image.The DPARSF software was used to preprocess the fMRI data,and then,the fALFF was compared between the IBS and normal control groups.Results As compared with the control group,the IBS group showed significantly increased fALFF values in the primary somatosensory cortex region and secondary somatosensory cortex region such as right temporal pole,middle temporal gyrus,precentral gyrus,postcentral gyrus and right superior frontal gyrus,and decreased fALFF values in the cerebellum.Conclusion Some somatosensory cortex regions in the IBS group are abnormal in the resting state in IBS patients,which can reflex a few pathological changes of brain dysfunction,and it also helps to understand IBS from the perspective of the brain neural activity for clinic diagnosis.
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Objective To understand the impairment and compensation mechanism of brain function in pa-tients with non-fluent aphasia after ischemic stroke. The fractional amplitude of low frequency fluctuation (fALFF) method was used to analyze the functional magnetic resonance imaging (fMRI) data in the resting state between the aphasia patients and the normal controls. Methods The scans of the resting state of fMRI were performed in 17 aphasia patients and 19 age-, education-, and sex-matched healthy control subjects. The scan sequence was single-shot echo planar image,DPARSF software was used to analyze fALFF data of the aphasia patients and the healthy controls. Results Compared to the control group, the value in right superior temporal gurus, inferior parietal lob-ule, frontal lobe cortex, and postcentral gurus were significantly increased in the aphasia group. The fALFF in bilat-eral cerebellum and right thalamus were also decreased in the aphasia group. Conclusions The fALFF values in some brain region in the aphasia group were abnormal in the resting state , indicating a few pathological change of brain function in patients with non-fluent aphasia after ischemic stroke.
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Objective To explore the factors which could lead to a preoperative diagnosis and to guide the management of cholecystoduodenal fistula (CDF).Method The experience on the diagnosis and treatment of 22 patients with CDF were retrospectively studied.These patients came from 1242 patients who received biliary tract operation in our hospital from 2001 to 2012.Results 64％ (14 of 22 patients) had 3 out of 5 of the following symptoms/signs:(1) symptoms of recurrent chills and fever,with no or only mild jaundice; (2) significant atrophy or disappearance of gallbladder on computed tomography (CT) ; (3) CT revealed complex anatomy in right upper abdomen with dilated loops of bowel; (4) ultrasound or CT revealed pneumobilia or pneumo-gallbladder; (5) barium study or duodenal endoscopy revealed obvious deformation in duodenal bulb or abnormal opening.There was no perioperative death.Morbidities included biliary fistula which presented on postoperative day 6 and day 7 in 2 patients,respectively.The daily volume of bile drainage was about 500 ml,and the biliary fistula healed after a month of conservative treatment.In addition,there were 6 patients who had infected wound,8 patients with right pleural effusion,and 8 patients with residual calculi.There was no intestinal fistula or biliary stricture.Conclusions Careful preoperative history taking and CT/uhrasound studies significantly improved the diagnostic rate of CDF.Individualized treatment reduced complications and improved clinical results.