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Objective To investigate the color Doppler flow imaging ( CDFI ) diagnosis value and related factors analysis of lower limb arterial lesions in patients with type 2 diabetes.Methods 70 cases with type 2 diabetes as observation group , 60 not-type 2 diabetes patients as control group in the same period were selected ,who were giv-en lower limb artery CDFI examination and comparison .Results Lower limb artery blood wall intima-media thickness (IMT) abnormal,atherosclerotic plaques,luminal stenosis,occlusion detection rate of the observation group were 82.86%,60.0%,22.86%,they were significantly higher than 28.33%,16.67%,5.0% of the control group(χ2 =4.38,12.84,7.53,all P<0.05);the lower limb artery plaque location of the observation group often was seen in the femoral artery, posterior tibialis artery and the anterior tibialis , dorsalis pedis artery in 42.86%,10.0%,42.86%, 48.57%,compared with 11.67%,6.67%,3.33%,3.33% of the control group , there were significant differences (χ2 =4.87,12.75,13.97,all P<0.05).In the observation group,the related factors of type 2 diabetes lower limb arterial pathological including age,blood pressure,glycosylated hemoglobin,blood lipid(TC,TG,HDL-C),there were significant differences compared with the control group (t=13.26,5.34,4.00,89.00,6.54,7.54,all P<0.05). Conclusion The CDFI examination is a reliable diagnosis means of patients with type 2 diabetes lower limb artery lesions,which can determine the lesion site ,length,jam extent and vascular anatomical abnormalities ,and has an im-portant clinical value .
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Objective To evaluate intraoporative ultrasonography (IOUS) of liver tumors. Methods In this study, 45 patients with liver tumors were examined by the IOUS(Logiq 500 scanner with a dedicated 5 ～ 7.5 MHz linear-array intraoperative transducer), and the results of IOUS were compared with those of preoperative ultrasonography (PHILIPS HDI 5000 scanner with a 3.5 ～ 5 MHz convex-array transducer) and computed tomography (CT). Results For tumors with a diameter ≥ 1 cm, the detection rate of IOUS was 100%, which was higher than that of preoperative ultrasonography and CT (100% vs 89.80% and 97.96%), though there was no statistical significance(xc2 = 3.372 ,P >0.05 and Fisher exact probability was 1.00) ; For tumors with a diameter < 1 cm, IOUS had a significantly higher detection rate than preoperative uhrasonography and CT(90.70% vs 62.79% and 74.42%, respectively,the former x2= 9.382, the latter x2 = 3.957, both P < 0.05) ;The total detection rate of IOUS was significantly higher than that of preoperative ultrasonography and CT (95.65% vs 77.17% and 86. 96%, respectively, the former x2 = 13.378, the latter x2 = 4.381, both P < 0.05). All the detected lesions underwent surgical resection or intratumoral injection of ethanol with the guidance of IOUS. Conclusions Compared with preoperative imaging examination, IOUS not only can enhance the detection rates of preoperatively overlooked lesions, but also can provide more valuable information to guide the surgical procedures.
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Objective To evaluate the diagnostic role of color Doppler ultrasonogarphy(CDU),Doppler ultrasound(DU)in the diagnosis of lower extremity deep venous thrombosis(DVT). Methods In this study,84 patients(92 lower extremities)of lower extremity DVT were underwent CDU and DU and lower extremity deep venous angiography respectively. Results Total consistent rate,sensitivity,specificity,omission diagnostic rate,mistake diagnostic rate,Youden index,Odd product.positive predictive value,negative predictive value and Kappa of CDU in diagnosing lower extremity DVT was respectively 96.7%,95.7%,97.8%,4.3%,2.2%,0.935,990.0,97.8%.95.7%and 0.935(P=0.037).As Kappa of CDU(0.935)＞0.75 and its P(0.037)＜0.05.CDU can theoreticallv substitute for deep venous angiography;Above-mentioned indexes of DU were respectively 89.1%,87.2%,91.1%,12.8%,8.9%,0.783,70.0,91.1%,87.2%and 0.783(P=0.065). Conclusion CDU iS becoming preferred and more reliable noninvasive method in diagnosing lower extremitv DVT.
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Objective To evaluate the correlation between hyperlipidemia and lower limb arterial disease in eldedy diabetic patients with color Doppler uhrasonography.Methods Two hundred and sixty elderly diabetic patients and 206 normal subjects were enrolled in the study.Doppler uhrasonographic manifestations of lower limb arterial disease,blood pressure and blood biochemistry parameters including fasting plasma glucose(FPG),postprandial plasma glucose(PPG),TC,TG,HLD-C,LDL-C,apoprotein B (apoB),very low density lipoprotein cholesterol(VLDL-C),apoprotein Al(apoA1)and fibrinogen(Fb)were compared between the 2 groups.Results (1)The blood biochemistry parameters,including the levels of FPG,PPG,TC,TG,VLDL-C,LDL-C,apoB and Fb were higher in diabetic patients t11an in normal subiects.while HDL-C was lower(all P＜0.05).(2)The thickness of intima-media(IMT)in the lower limb arterial disease group was significantly increased and the presence of arterial stenosis and wall plaques more in diabetic patients[IMT in 205 cases(78.85%),atherosclerotic plaque in 241 cases(92.69%),muhivessel disease(more than 2 vessels)in 60 cases(23.08%)and arterial stenosis in 89 cases (34.23%)]than in normal subjects[IMT in 37 cases(17.96%),atherosclerotic plaque in 51 cases (24.76%),muhivessel disease in 27 cases(13.11%)and arterial stenosis in 3 cases(0.01%)],all P＜0.01.(3)Regression analysis showed that lower limb arterial disease was correlated with high level of LDLC and low level of HDL-C.Conclusions Arteriosclerotic plaque is one of the early manifestations in elderly diabetic patients and hyperlipidemia may provide the basis of its formation.Doppler uhrasonographic examination of lower limbarterial discloses the early arteriosclerotic changes of lower limb arterial disease in elderly patients and offers the basic data of indication for clinical treatment.
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Objective Delve into the applied value of CDFI to diagnose deep vein thrombosis(DVT)in lower limbs.Methods Analyze the diagnosis of 65 chronic cases of DVT with a two-dimensional CDFI,and contrast it with the operation,X-ray angiography and clinical features.Results 36 acute cases of DVT;29 chronic cases of DVT;38 cases of lesion in left lower hmb(58.5%);21 in right lower limb(32.3%);and 6 in both lower limbs(9.2%).In the chronic cases,11 have formed collateral branch circulation.Conclusion CDFI has a safe and rapid effect on vein illness in lower limbs and can show the state of blood streams and the condition around the veins.It Can explain the unknown swollen in limbs.Realizing DVT in early stage has good value for its occurring,expanding and treating.
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Objective To evaluate the clinical value of color Doppler ultrasound-guided percutaneous transhepatic cholangiol drainage(PTCD) for treating obstructive jaundice. Methods 248 cases of PTCD were performed in 224 patients under the guidance of color Doppler ultrasound. 118 PTCD cases were carried out passing through the inferior segmental biliary duet of Left laterallobe (Left drainage mode). Right lobe drainage mode (right drainage mode)was conducted in 130 patients. Left plus right lobe drainage mode in 16 patients. Results The total success rate was 99.59 %(247/248), and the success rate of the firs time PTCD was 92.33 %(229/248). The success rate of left drainage mode was significantly higher than righl lobe drainage (96.61% vs 88.46 %, P ＜0.05). Conclusion The technique of color Doppler ultrasound-guided PTCD is an efficient method in obstructive jaundice therapy, with the advantages of safety, convenience, minimal invasion, and higher success rate.