64MDCT冠状动脉成像不同心率下的最佳重建时相分析

目的探讨64排螺旋CT（64MDCT）冠状动脉成像不同心率下冠状动脉各节段血管的最佳重建相位。方法对61例病例行64MDCT冠状动脉成像,扫描后原始数据分别按R—R间期30％,35％,40％,45％,50％,60％,70％,75％的相位进行后处理重组。记录扫描期间平均心率,心率〈70次/min为Ⅰ组,≥70次／分为Ⅱ组,分析不同心率组不同R-R时相对各支冠状动脉血管的显示情况。结果Ⅰ组的所有的冠状动脉节段可以在单一的75％相位上获得最佳图像质量;Ⅱ组的所有冠状动脉可以在单一的45％或加％的相位上获得最佳图像质量,多时相重建并不能显著提高图像质量。结论随着64MDCT的时间分辨率的充分发展,所有有关冠状动脉节段能在一个重建间隔得到有诊断价值的图像。     

心率及重建时相对64层CT冠状动脉成像图像质量的影响

目的探讨不同重建时相对64层CT冠状动脉成像质量的影响。方法64例患者采用64层CT回顾性心电门控冠状动脉成像,扫描原始数据不同时相重建,用横断面、曲面重建、容积再现等方法对图像质量综合评分。患者心率<65次/min为Ⅰ组(n=36),65～79次/min为Ⅱ组(n=18),≥80次/min为Ⅲ组(n=10),患者冠状动脉血管分为12段,4条冠状动脉分支(左冠状动脉主干、左前降支、左回旋支、右冠状动脉)用于图像质量分析。结果Ⅰ和Ⅱ组60%、65%相位图像质量最优,Ⅲ组右冠状动脉(right coronary artery,RCA)最优的相位窗为40%相位,左回旋支(left circumflex coronary artery,LCX)、左前降支(left anterior descending coronary artery,LAD)、左主干(left main,LM)最优的相位窗为60%。结论心率低于80次/min的患者冠状动脉重建时相首选舒张中期60%或65%时相;心率高于80次/min患者,按左、右冠状动脉分支分别进行重建有利于提高冠状动脉的成像质量。     

心率对64层螺旋CT冠状动脉成像影响

目的探讨64层螺旋CT冠状动脉成像的临床应用价值及心率对图像质量的影响。方法对66例患者行64层螺旋CT冠状动脉成像,记录扫描时间、心率、心率变化,后处理重建冠状动脉各分支的显示情况、冠状动脉病变的显示情况;将66例患者按心率≤60次为Ⅰ组,心率61～70次为Ⅱ组,心率71～80次为Ⅲ组,心率〉80次为Ⅳ组,比较各组间图像质量评分。结果64层螺旋CT冠状动脉成像扫描时间短,心率变化小,对冠状动脉三四级分支的显示优,对病变显示清晰;比较不同心率组冠状动脉图像质量评分,Ⅳ组（心率〉80次）明显低于Ⅰ、Ⅱ、Ⅲ组（P〈0．05）,Ⅰ、Ⅱ、Ⅲ各组间差异无统计学意义。结论64层螺旋CT冠状动脉成像扫描时间短,图像清晰,但心率〉80次对图像质量仍有很大的影响。     

64排螺旋CT冠状动脉成像的质量控制技术

目的探讨64排螺旋CT冠状动脉成像质量的影响因素。方法搜集500例患者64排螺旋CT冠状动脉成像（64DCTCA）完整资料,将图像进行多相期重建后传至工作站处理,以显示冠状动脉主干和分支进行分析,评价不同心率、心动周期内不同R-R时相重建图像、不同注射方式的冠脉成像质量。结果64排螺旋CT冠状动脉成像图像质量与患者心率、呼吸运动及冠状动脉钙化积分等因素成负相关。结论检查前控制好患者心率（〈65次/分）、选择最佳的重建时相窗（60%R-R间期）、患者屏气配合及双相注射对比剂有利于提高冠脉的成像质量。     

16层螺旋CT冠状动脉成像技术因素与图像质量相关性研究

目的 探讨16层螺旋CT冠状动脉血管成像技术因素与图像质量的相关性.方法 436例受检者行16层螺旋CT冠状动脉血管成像检查,将图像行后处理重建显示冠状动脉主干及其主要分支.结果 心率对图像质量影响较大,理想心率在55次/分～75次/分,MSCT对冠状动脉主干及其主要分支显示率为80.3%达到诊断要求;选择重建相位窗为75%可提高工作效率;使用注射速率为3.5ml/s,显示冠状动脉清晰且受腔静脉伪影少.     

64 层CT在心率较快患者冠状动脉成像中的技术应用

 【目的】 探讨64层螺旋CT在心率较快患者冠状动脉成像中的技术应用。【方法】 收集临床拟诊冠心病而行64层CT冠状动脉造影检查的患者107例。平均心率低于80 min-1的患者55例,作为正常心率对照组。平均心率超过80 min-1(80 ~ 98 min-1)的患者52例。扫描后对已采集数据进行个性化重建,利用后处理工作站进行图像质量分析。 【结果】 对冠状动脉近段/中段和远段成像质量进行统计分析,和心率正常组相比,心率80 ~ 90 min-1和平均心率超过90 min-1者CTA图像质量评价没有显著统计学差异。【结论】 对于64层CT冠状动脉成像心率较快的患者,选择合适的图像重建时相,使用回顾性心电门控配合个性化重建能明显改善患者的冠状动脉CT造影图像质量。     

冠状动脉64层螺旋CT成像质量与心率关系

目的探讨冠状动脉螺旋CT成像质量与心率的关系。方法随机抽取冠状动脉64层螺旋CT成像250例,排除呼吸运动影响及心律失常者,按照平均心率(次/min)分5组(≤60,～65,～70,～75,>75),分析各支冠状动脉各段显示情况。结果心率≤70次/min共812支血管,图像质量3级以上3支;～75次/min共140支血管,图像质量3级以上8支;>75次/min共47支血管,图像质量3级以上10支。心率>70次/min图像质量开始受到影响(<0.05),心率>75次/min明显受到影响(<0.01)。结论64层螺旋CT冠状动脉成像时心率快慢及心率稳定与否影响成像质量,有效心率控制并维持心率稳定能保证良好的冠脉图像质量。     

心率对64排CT冠状动脉造影成像质量影响的评估与讨论

目的 评估与讨论心率对64排CT冠状动脉造影成像质量的影响.方法 选择我院2011年3月～2012年12月300例不同心率接受64排CT冠状动脉造影成像检查的患者,按平均心率分为五组,A组患者60例平均心率≤60次/min,B组60例患者平均心率在61～65次/min,C组60例患者平均心率为66～70次/min,D组患者60例患者平均心率为71～75次/min,E组60例患者平均心率＞75次/min,比较五组患者64排CT冠状动脉造影成像质量.结果 300例患者共921支血管,从图像质量分级情况显示,图像质量与平均心率呈负相关,心率越快,则图像质量越差,A组图像均为1级,B组、C组图像质量略低于A组,组间比较差异无显著性,无统计学意义P＞0.05.D组、E组图像质量与前三组比较差异具有显著性,有统计学意义P<0.05.结论 61排CT冠状动脉造影成像质量会受到心率变化的影响,心率越快,对质量的影响越大,因此,为保证64排CT冠状动脉造影成像质量,应维持患者心率稳定,对心率过快的患者进行有效控制.     

64排螺旋CT冠状动脉成像技术的临床应用

目的探讨64排螺旋CT冠状动脉成像技术及影响图像质量的因素。方法采用回顾性心电门控,对306例患者用64排CT进行心脏扫描,以R-R间期的不同时相75%、70%、45%、40%进行预览,利用Comp cardiac后处理软件三维重建分析冠状动脉。结果 306例患者,有16例显示不良。其中心率≤65次/min的占3例,心率≥75次/mim的占9例,心率65-75次/min的占4例。其余290例患者能顺利完成检查,冠状动脉显示清楚,二三级分支也能显示,达到诊断要求。结论选择合适的扫描技术,控制患者的心率,加强患者屏气配合,正确的图像后处理技术均可提高冠状动脉的质量。     

16排螺旋CT冠脉成像最佳重建时相窗探讨

目的 讨论16排螺旋CT冠状动脉成像重建相位窗的选择对图像质量的影响.方法 100例临床拟诊冠心病的患者行MSCT冠脉成像.利用回顾性ECG门控技术,重建出20%～80%R-R间期轴位图像,分别进行三维VRT重建.比较图像质量并进行评分.结果 左前降支(LAD)、左回旋支(CX)、右冠状动脉(RCA)在心动周期时相的60%～70%成像效果较好.左主干(LM)除40%R-R间期外,其余时相成像效果均较好.结论 当扫描时患者平均心率小于60次/min时,60%、70%R-R间期是最佳重建相位窗.     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.