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Diagnostics in inflammatory bowel disease: Ultrasound 被引量:20
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作者 Deike Strobel Ruediger S Goertz Thomas Bernatik 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第27期3192-3197,共6页
Diagnosis of chronic inflammatory bowel diseases (IBD) is based on a combination of clinical symptoms, laboratory tests and imaging data. Imaging of the morphological characteristics of IBD includes the assessment of ... Diagnosis of chronic inflammatory bowel diseases (IBD) is based on a combination of clinical symptoms, laboratory tests and imaging data. Imaging of the morphological characteristics of IBD includes the assessment of mucosal alterations, transmural involvement and extraintestinal manifestations. No single imaging technique serves as a diagnostic gold standard to encompass all disease manifestations. Ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI) allow cross-sectional imaging of the transmural alterations and extraintestinal manifestations. While in the USA the technique of choice is CT, in Europe the focus is more on MRI and ultrasound (US). Most patients with chronic IBD are diagnosed at a young age. After baseline diagnosis many of these young patients have to undergo repetitive imaging procedures during the variable clinical course of the disease, characterized by alternate periods of remission and active disease, and in monitoring the response to treatment. US has the advantage of being noninvasive, less costly, and easily repeatable, and thus can be very useful in following up patients with IBD. In addition, rising concern about radiation exposure in young adults indicates the demand for radiation-sparing techniques like US and MRI. This article focuses on the current clinical practice of US in IBD, describing the current technologies used in transabdominal intestinal US and the characteristic sonographic findings in Crohn′s disease and ulcerative colitis. 展开更多
关键词 high-frequency waves ULTRASOUND Clinical practice Inflammatory bowel disease color Doppler Contrast agents
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Early hemodynamics after tibial transverse transport in patients with nonarterial stenosis and arterial stenosis diabetic foot 被引量:1
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作者 Mei-Mei Liao Sen Chen +5 位作者 Jia-Rui Cao Meng-Wei Wang Zhi-Hui Jin Jia Ye Yi-Jun Ren Rui-Qiang Guo 《World Journal of Diabetes》 SCIE 2023年第12期1784-1792,共9页
BACKGROUND The diagnosis of peripheral arteriopathy in the diabetic foot is complicated by diabetes and its advanced complications.It has been found that diabetic foot can be categorized into arterial stenosis and non... BACKGROUND The diagnosis of peripheral arteriopathy in the diabetic foot is complicated by diabetes and its advanced complications.It has been found that diabetic foot can be categorized into arterial stenosis and non-arterial stenosis,both of which have significant differences in hemodynamic characteristics.AIM To evaluate the early hemodynamic changes in diabetic foot patients with nonarterial stenosis and arterial stenosis treated by tibial transverse transport(TTT)using high-frequency color Doppler ultrasonography(HFCDU)and a laser Doppler flowmeter.METHODS Twenty-five patients with Wagner grades 3-5 diabetic foot ulcers were treated with TTT,and the wound healing time and rate were recorded.Patients were grouped according to the results of preoperative lower-extremity ultrasonography.Cases with≥50%stenosis in any of the femoral,popliteal,posterior tibial,anterior tibial,and peroneal arteries of the affected limb were classified as the arterial stenosis group(n=16);otherwise,they were classified as the nonarterial stenosis group(n=9).Before and one month after surgery,HFCDU was used to evaluate the degree of lower limb artery lesions and hemodynamic changes in patients.The degree of femoral-popliteal atherosclerotic stenosis,the degree of vascular stenosis and occlusion of the lower-knee outflow tract,and the degree of medial arterial calcification were scored;the three scores were added together to obtain the total score of lower extremity arteriopathy.PeriScanPIM3,a laser Doppler flowmeter system,was used to detect alterations in plantar microcirculation before and 1 mo after surgery.Wound healing and hemodynamic indices were compared between the two groups.RESULTS The wound healing time of the diabetic foot was significantly shorter in the nonarterial stenosis group than in the arterial stenosis group(47.8±13 vs 85.8±26,P<0.05),and the wound healing rate of both groups was 100%.The preoperative total lower extremity arteriopathy scores were lower in the nonarterial stenosis group than those in the arterial stenosis group(18.89±8.87 vs 24.63±3.52,P<0.05).The nonarterial stenosis group showed higher preoperative popliteal artery(POA)blood flow than the arterial stenosis group(204.89±80.76 cc/min vs 76.75±48.49 cc/min,P<0.05).Compared with the baseline(before surgery),the postoperative POA blood flow of the affected limb in the nonarterial stenosis group decreased one month after surgery(134.11±47.84 cc/min vs 204.89±80.76 cc/min,P<0.05),while that in the arterial stenosis group increased(98.44±30.73 cc/min vs 61.69±21.70 cc/min,P<0.05).Although the POA blood flow in the arterial stenosis group was obviously improved one month after surgery,it was still lower than that in the nonarterial stenosis group(98.44±30.73 cc/min vs 134.11±47.84 cc/min,P<0.05).The nonarterial stenosis group had higher preoperative plantar microcirculation than the arterial stenosis group(56.1±9.2 vs 33.2±7.5,P<0.05);compared with the baseline,the plantar microcirculation in the arterial stenosis group was significantly improved one month after surgery(51.9±7.2,P<0.05),while that in the nonarterial stenosis group was reduced(35.9±7.2,P<0.05).CONCLUSION Based on preoperative HFCDU findings,diabetic foot patients can be divided into two categories:Those with nonarterial stenosis and those with arterial stenosis,with obvious differences in hemodynamic changes in the early postoperative period between them.In the early stage after TTT,the blood flow volume and velocity and the plantar microcirculation perfusion of the affected limb of the diabetic foot with nonarterial stenosis decreased compared with the baseline,while those of the diabetic foot with arterial stenosis improved significantly compared with the baseline,although both had smoothly healed diabetic foot ulcers. 展开更多
关键词 high-frequency color Doppler ultrasonography Diabetic foot Tibial transverse transport Nonarterial stenosis Arterial stenosis
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钼靶X线、MRI动态增强联合高频彩超对含钙化灶乳腺良恶性病变的诊断价值分析 被引量:10
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作者 刘丽珍 刘建新 +1 位作者 赖伟 冼云开 《包头医学院学报》 CAS 2019年第4期19-21,共3页
目的:探讨应用数字钼靶X线摄影+MRI动态增强扫描+高频彩超诊断鉴别钙化乳腺良性及恶性病变的效果。方法:分析本院2013年7月至2018年11月收治的70例含钙化乳腺病变患者的临床诊断资料,患者均行数字钼靶X线摄影、MRI动态增强扫描、高频彩... 目的:探讨应用数字钼靶X线摄影+MRI动态增强扫描+高频彩超诊断鉴别钙化乳腺良性及恶性病变的效果。方法:分析本院2013年7月至2018年11月收治的70例含钙化乳腺病变患者的临床诊断资料,患者均行数字钼靶X线摄影、MRI动态增强扫描、高频彩超检查,以病理学结果作为参照标准,统计乳腺良恶性病变类型及病灶数量,同时评价单纯及联合诊断方法的准确性。结果:病理学诊断乳腺良性病变41例,病灶46个,乳腺恶性病变29例,病灶32个;联合数字钼靶X线摄影、MRI动态增强扫描及高频彩超检查诊断乳腺良恶性病变的准确率显著高于单一诊断方式。结论:针对含钙化灶乳腺良恶性病变,采用数字钼靶X线摄影、MRI动态增强扫描联合高频彩超检查诊断病变有一定价值,值得推广。 展开更多
关键词 数字钼靶X线摄影 MRI动态增强扫描 高频彩超检查 含钙化灶 乳腺良恶性病变
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