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<title>Chinese Journal of Magnetic Resonance Imaging RSS feed</title>
<link>http://med-sci.cn/cgzcx/en/contents_list.asp?issue=201301</link>
<language>zh-cn</language>
<copyright>An RSS feed for Chinese Journal of Magnetic Resonance Imaging</copyright>
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<title><![CDATA[Strengthening functional MRI research on epilepsy]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.001</link>
<description><![CDATA[The overview was given on the significance, current state, perspective andopen questions of blood oxygenation level-dependent function al MRI research on epilepsy. fMRI application to epileptic localization and estimation of eloquent functional areas were emphasized.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Dynamic functional MRI study of absence seizures]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.002</link>
<description><![CDATA[Objective: To study the dynamic activation during the progress of absence seizures using dynamic blood oxygenation level-dependent functional MRI
(BOLD-fMRI) analysis. Materials and Methods: Seventeen sessions of simultaneous EEG and fMRI data were acquired from 12 children with absence
seizures (AS). Sequential hemodynamic-response function based generalized linear model analysis and region-of-interest based time-course analysis were employed to investigate dynamic alterations of brain region during procedure of absence seizures.
Results: The thalamus and widely distributed cortical structures were found to have significant BOLD alterations responding to the generalized-slow and wave discharges.
BOLD response was found in the thalamus and cortex 18 seconds prior to generalized-slow and wave discharges. There were variable time points of maximal
activation or deactivation in different brain regions. Conclusions: The thalamus activation is proposed to be linked to the generation of epileptic seizures, and the deactivation in the default-mode regions and the other wide cortical regions may be correlated with the consciousness impairments in seizures. This study contributed to the understanding of mechanism of impaired consciousness in AS. The finding of BOLD response prior to the GSWD supports the feasibility of seizure prediction.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Resting-state functional connectivity in patients with generalized tonic-clonic seizures]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.003</link>
<description><![CDATA[Objective: To investigate the alteration of brain functional networks underlying normal brain organization in patients with generalized tonic-clonic seizures (GTCS) using seed-based resting-state fMRI functional connectivity analyses.Materials and Methods: Resting-state fMRI datasets were acquired from 52 GTCS patients during interictal period and 57 matched healthy controls. The bilateralthalamus and posterior cingulate cortex (PCC) selected as seed region. The averaged time series within each seed was used to detect brain regions with fMRI signalcorrelated with the seed. Results: Within group comparison using one sample t-test showed significant functional connectivity pattern in thalamic network and in default mode network (DMN). Compared to controls, bilateral thalamus showed increased functional connectivity with primary motor cortex and insula, while decreased functionalconnectivity were found in basal ganglia and DMN regions. Within DMN, decreased functional connectivity with bilateral PCC were found in bilateral temporal pole, medial prefrontal lobe and supramarginal gyrus, while increased regions werefound in bilateral angular gyrus, thalamus and left superior frontal gyrus. Conclusions:Thalamus is a key node of the epileptic network in GTCS. The increased functional connectivity between thalamus and primary motor area may be associated with the tonic and clonic during seizures. Additionally, decreased functional connectivity in the DMN suggested default brain functional may also be impaired in GTCS, which may be related to the loss of consciousness during seizures. These results demonstrated the impairment of brain function in GTCS patients even in interictal state, and imporved our understanding of the pathophysiological mechanisms of GTCS.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[MRI analysis of temporal lobe epileptogenic tumors]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.004</link>
<description><![CDATA[Objective: To observe and analyze relationship among clinical, MRI findings and pathological types of the temporal lobe epileptogenic tumors. Materials
and Meth ods: We retrospectively analyzed clinical data of 39 cases with temporal lobe epileptogenic tumor including age of onset, duration and seizure type of epilepsy,
MRI features and pathological type of these tumors. Results: The average onset age of the temporal lobe epilepsy was 9.4 years and 36 patients (92.3%) was under 18 years old. An average epilepsy course was 98.8 months. There were 29 cases (74.4%) with complex partial seizures in the group, including 11 cases (28.2% ) associated with generalized tonic-clonic seizures (GTCS) and 2 cases (5.1%) with absence seizures. GTCS and tonic seizures were five cases (12.8%) and 2 cases (5.1%), respectively. Simple partial seizures were 3 cases (7.7%). There were 24 ganglioglioma (61.5%), 5 astrocytoma (12.8%), 3 oligodendroglioma (7.7%), 3 dysembryoplastic neuroepithelial tumor (DNET)(7.7%) and 4 the other types (10.3%) in the group. The tumors were located in the mesial and lateral temporal lobe were 71.8% and 28.2%, respectively. Mesial temporal lobe tumors involving hippocampus (71.4%) was significantly higher than that of the lateral group (9.1% ). MRI displayed the tumors as solid-cystic component, mainly solid and mainly cystic lesions were 46.2%, 30.8% and 23.1%, respectively. MRI Enhanced scan shows 25 caes (64.1%) with no enhancement. In addition to DNET located within the cortex with multiple small cystic characteristics, there were no significant difference on MRI manifestation of other tumor types. Conclusion: Temporal lobe tumoral epilepsy was common in children, which was mostly slow-growing tumor involving mesial or lateral cortex of the temporal lobe. Ganglioglioma is most common epileptogenic tumor in our patient group, DNET and low-grade gliomasin also appeared in the temporal lobe epilepsy group. The most common seizure type was complex partial seizures with or without GTCS.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Magnetization transfer imaging study of idiopathic epilepsy at 3.0 T high field magnetic resonance scanner]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.005</link>
<description><![CDATA[Objective: To study cerebral microstructure changes in patients with idio pathic epilepsy by magnetiza tion transfer imaging technique. Materials and Methods: Magnetization transfer imaging (MTI) were performed in thirty-two patients with idio pathic epilepsy and thirty-two healthy volunteers. MTI data were analyzed using voxel-based analyses of whole brain in statistical parametric mapping software (SPM2). Two-sample t-test was used to compare with two groups. Correlation between MTR and the illness duration was analyzed. The differences of P<0.05 would be considered as statistical significance. Results: Compared with normal control group, MTR reduction areas were mainly located in bilateral middle frontal gyrus, an terior cerebellar lobe, right medial prefrontal, paracentral lobule, superior frontal gyrus and left inferior parietal lobule (P<0.05). Negatively correlation was found in the occipital lingual gyrus, fusiform gyrus and left posterior lobe of cerebellum between MTR and the ill ness duration. Conclusions: MTI can detect the potential neuropathological changes of idiopathic epilepsy, and provide a theoretical basis for pathophysiological mechanism in epilepsy.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[MR imaging analysis of phyllodes tumors of the breast]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.006</link>
<description><![CDATA[Objective: To analyse the MR imaging of phyllodes tumors and improve the diagnosis level. Materials and Methods: The MRI data of 8 patients with phyllodes tumors of the breast verified by histopathology were analyzed. The MRI features analyzed included morphology, signal intensity on pre-enhanced T1WI, appearance of dynamic contrast enhancement (DCE-MRI), the type of time-signal intensity curve (TIC), and the features on DWI. The ADC values for phyllodes tumor and normal breast tissue were compared using paired t test. Results: The pathologic diagnosis of the 10 phyllodes tumors inclulding 6 benign, 3 borderline and 1 malignant. Of the 10 tumors, 6 were lobular and 4 were oval in shape; the margins were well-defined in 7 cases, and ill-defined in 3 cases. All tumors were hypointensity on T1WI, and hyperintensity on T2WI or STIR; Moreover, internal septations which appeared low signal intensity on T2WI in 2 tumors and hyperintense fluid-filled slit-like spaces in 2 tumors on T2WI FS or STIR were seen. On DCE-MRI, all of the tumors showed rapid initial enhancement, type I of TIC were shown in 2 cases and typeⅡ in 8 cases. Nine patients underwent DWI were all showed high signal, the mean ADC value for phyllodes tumors [(1.32±0.18)×l0-3 mm3/s] was significantly lower than that of the nor-mal breast tissue[(1.90±0.21)×l0-3 mm3/s, t=2.33, P<0.05]. Conclusion: The imagig findings of phyllodes tumors on MR is characteristic but not specific, the final diagno-sis still depends on the histopathologic examination.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Pay attention to magnetic resonance imaging and improve the understanding of stress cardiomyopathy]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.007</link>
<description><![CDATA[Stress cardiomyopathy (SC) is triggered by stressful events and characterized by reversible but distinctive left ventricular contraction pattern of apical ballooning. Recently large-sized sample, multicenter and prospective studies have shown some broad clinical profiles and diversity of contraction patterns. Cardiac magneticreso nance (CMR) can be used for visualization of regional wall motion abnormalities and quantification of ventricular function. Importantly, late gadolinum enhancement (LGE) can differentiate reversible (inflammation/ischemic edema) from irreversible (necro sis/fi brosis) injury. This one-stop shop imaging has the unique
ability to reflect the patho physiological effects of SC. It might contribute to the establishment or rule out the diagnosis of SC at the time of acute clinical presentation.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[3D coronary arteties magnetic resonance imaging technology]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.008</link>
<description><![CDATA[Magnetic resonance coronary angiography (MRCA) is a noninvasive method of coronary arteries imaging. In the past decade, three-dimensional (3D) coronary artery MR imaging sequences have become the major approach because they provide volumetric coverage of the coronary arteries with high SNR and spatial resolution. Siemens provides both targeted (single or two main branches) and whole-heart coverage for coronary MRA imaging. This article introduces the technical background of the whole-heart coverage and the scan procedures at 1.5 T and 3.0 T.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Authoring and reviewing papers for Magnetic Resonance in Medicine]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.010</link>
<description><![CDATA[Magnetic Resonance in Medicine (MRM or officially "Magn Reson Med") is an international journal, having received manuscript submissions from 38 different countries during the preceding year. Recently, there has been a particularly strong growth in interest about the journal from China. This article is the result of a lecture presented at the Chinese Focus Session, held during the 2012 ISMRM Annual Meeting in Melbourne, Australia. Perspectives on writing and reviewing for Magn Reson Med are offered.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[The CT, MRI performances and understanding in cerebral ischemia]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.011</link>
<description><![CDATA[Ischemic injury in brain is a very forward-looking clinical subject. In many clinical cases, we can see different degrees of ischemic damage in brain because of many reasons. In the past, we payed more attention to whether an infarction was happened or focused on imaging features of early cerebral infarction. However, we just ignore the predictive diagnosis and lesions outcome of cerebral ischemia as well as the preventive study in the side of ischemic injury during medical process. In this article, we analysis the ischemic injury caused by many reasons to arouse the macroscopic understanding of cerebral ischemic injury in another perspective. Cerebral ischemia is a systematic pathology process and a lot of causal relationship is not entirely clear that is both the contradiction and unity. We can see some MRI expression look similar to inflammatory lesions, edema and so on. The pathological process of cerebral ischemia is a process of processing and the changes of the central nervous system will evolve following the dynamic changes. Cerebral infarction is only a kind of ending form of ischemia while cerebral ischemia is the prelude of cerebral infarction. We meet varying degrees of ischemic brain injury for many reasons in our daily practice everyday and the cerebral ischemia which is not display in the form of infarction is frequently ignored by clinicians. This paper introduced a variety reason of cerebral ischemia and their respective MRI performance in typical cases form and discussed how to under stand the images correctly. We aim to move diagnosis and treatment time win dows forward and improve patients quality of life in future though predict the development of disease with the aid of imaging subtle changes and signs.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[To publish in American/European journals of radiology:experience & skill]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.012</link>
<description><![CDATA[American and European radiology journals remain the most prestigious imaging journals internationally, with highest impact factors. Though challenging for
authors, achieving publication in American and European radiology journals is attain able and rewarding. This article is based on the experience of the authors in writing and publishing articles on radiology of prostate cancer, liver tumors, kidney tumors, lung cancer, esophageal cancer, lymphoma and brain tumors published in 13
American and European journals of radiology.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Application progresses of new magnetic resonance imaging techniques in epilepsy]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.013</link>
<description><![CDATA[Epilepsy is a neurological syndrome with brain dysfunction and behavioral abnormality caused by sudden abnormal discharge of the spontaneous neurons. Neuroimaging plays a significant role in the diagnosis of epilepsy, and magnetic resonance imaging has been considered to as the first choice of all imageological methods. Currently, new techniques such as diffusion imaging, magnetic spectroscopic imag ing and functional magnetic resonance imaging have been widely studied in epilepsy. In this article, we reviewed the recent application progresses of new magnetic resonance imaging techniques in epilepsy.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[Progress of MRI-optical dual-modality molecular imaging probes]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.014</link>
<description><![CDATA[Noninvasive molecular imaging techniques are important for understanding the actual conditions and mechanisms of biological systems. More inter ests in the
de velopment of noninvasive molecular imaging have shifted toward multimodality imaging, for no single imaging modality possesses all ideal traits of being quantitative and longitudinal, and provides both high resolution and sensitivity. The combination of non-ionizing MRI and fluorescent techniques has received more attention because of their highly complementary capabilities for anatomical resolution and detection sensitivity. Herein, we report the latest progress in the field of MRI-fluorescent dual modality imaging.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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<title><![CDATA[The application of diffusion -weighted magnetic resonance imaging in liver]]></title>
<link>http://med-sci.cn/cgzcx/en/en_articlexml.asp?doi=10.3969/j.issn.1674-8034.2013.01.015</link>
<description><![CDATA[Diffusion-weighted magnetic resonance imaging is one of the functional MR imaging techniques and is used for the diagnosis of cerebral early infarction. Recently, with the MR hardware and software development, the research on the applications of DWI in liver is increasingly reported and most of them are focused on the DWI technique improvement and the application in the diagnosis and treatment evaluation of liver diseases. New DWI techniques are developed to reduce motion artif act to improve the imaging quality. The clinical applications of DWI in liver disease include lesion detection, characterization and assessment of response to treatment strategies. In this review, we would summarize the state of the art of the DWI techniques and its clinical application in liver diseases.]]></description>
<pubDate>Sun,20 Jan 2013 00:00:00  GMT</pubDate>
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