scholarly journals Increased Vascularity Detected by Digital Subtraction Angiography after VEGF Gene Transfer to Human Lower Limb Artery: A Randomized, Placebo-Controlled, Double-Blinded Phase II Study

2002 ◽  
Vol 6 (1) ◽  
pp. 127-133 ◽  
Author(s):  
Kimmo Mäkinen ◽  
Hannu Manninen ◽  
Marja Hedman ◽  
Pekka Matsi ◽  
Hanna Mussalo ◽  
...  
Keyword(s):  
Gene Transfer ◽  
Digital Subtraction Angiography ◽  
Phase Ii ◽  
Lower Limb ◽  
Phase Ii Study ◽  
Digital Subtraction ◽  
Vegf Gene ◽  
Double Blinded

Comparison Between Computed Tomography Angiography and Digital Subtraction Angiography in Critical Lower Limb Ischemia

2019 ◽  
Vol 15 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Hesham Ebrahim Ahmed Al-rudaini ◽  
Ping Han ◽  
Huimin Liang
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Lower Limb ◽  
Limb Ischemia ◽  
Definitive Treatment ◽  
Digital Subtraction ◽  
Arterial Tree ◽  
Lower Limb Ischemia ◽  
Significant Difference ◽  
Peripheral Arterial

Background:CT Angiography (CTA) of aortoiliac and lower extremity arteries is a relatively recent innovation of CT imaging that has changed after the introduction of multi-detector row scanners.Objective:The study aimed to evaluate the diagnostic accuracy of Multidetector Computed Tomographic Angiography (MDCTA) in the assessment of arterial tree in patients with Peripheral Arterial Occlusive Disease (PAOD), as compared to Digital Subtraction Angiography (DSA).Methods:A single-center nonrandomized prospective study was conducted on 50 patients complaining of peripheral arterial disease (chronic stage) from February 2017 to October 2017. All the patients were exposed to DSA and CTA prior to definitive treatment. The images were then analyzed using maximum intensity projection, volume-rendered, and curved multiplane reformation techniques.Results:All the patients involved in this study were susceptible according to their clinical presentation. The statistical analysis exposed a highly significant difference between CTA and DSA in the assessment of stenosis at the level of Femoropopliteal segment (P<0.01), while for infrapopliteal segment, there was no statistically significant difference between CTA and DSA having 8% versus 14% insignificant stenosis and 62% versus 47% significant stenosis in CTA and DSA, respectively. The overall accuracy of CT angiography in the femoropopliteal segments was 95.20% while in the infrapopliteal segment it was 94.5%.Conclusion:Multidetector CT angiography was found to be a reliable alternative mean for pathoanatomical description of the arterial lesions in critical lower limb ischemia and its subsequent management in comparison to digital subtraction angiography.

Exploring the value of the double source CT angiography in diagnosing in-stent restenosis in lower limb artery

Vascular ◽  
2020 ◽  
Vol 28 (3) ◽  
pp. 267-273
Author(s):  
Jian Yun ◽  
Ye Shen ◽  
Yun He ◽  
Bo Gong ◽  
Minhai Liu ◽  
...  
Keyword(s):  
Positive Predictive Value ◽  
Contrast Agent ◽  
Digital Subtraction Angiography ◽  
Lower Limb ◽  
Predictive Value ◽  
Digital Subtraction ◽  
Lumen Area ◽  
Stent Restenosis ◽  
Sensitivity Specificity ◽  
In Stent Restenosis

Objectives This paper is aimed to explore the value of double source CT angiography (DS-CTA) for diagnosing in-stent restenosis in lower limb artery. Methods From January 2016 to October 2018, all patients with stent in lower limb artery in our hospital were investigated by both DS-CTA and digital subtraction angiography. We measured the minimum lumen diameter and the diameter of the proximal normal vessels under each stent placement. The in-stent restenosis is defined as restenosis when the lumen area decreased by more than 50%. Digital subtraction angiography was performed within 1 week after DS-CT scan. Relationship between DS-CTA and digital subtraction angiography for diagnosing in-stent restenosis in lower limb artery was analyzed. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of DS-CTA for diagnosis of in-stent restenosis were analyzed with digital subtraction angiography as the reference standard. A total of 68 stents were placed in 51 patients. Among these patients, 27 cases were diagnosed as in-stent restenosis, presenting as endovascular contrast agent bias or crescent filling defect with the lumen area reducing over 50%, 6 cases of which had no significant in-stent restenosis by digital subtraction angiography analysis. Furthermore, 12 cases were occlusion, in which there was no high density contrast agent in stents; the remaining 41 stents were unobstructed and the contrast agent was filled well, 8 cases of which had significant in-stent restenosis by digital subtraction angiography analysis. In addition, four stents were deformed or distorted. Statistical analysis demonstrated the concentrations of DS-CTA and digital subtraction angiography in diagnosing in-stent restenosis for lower limb artery were closely related, and the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of DS-CTA were 72.4%, 84.6%, 77.8%, 80.5%, and 79.4%, respectively. Conclusion DS-CTA has a potential reliability for diagnosis of in-stent restenosis in lower limb artery, which may be further improved to be used for clinical interventional treatment of vascular diseases.

scholarly journals Theophylline as an add-on to thrombolytic therapy in acute ischaemic stroke (TEA-Stroke): A randomized, double-blinded, placebo-controlled, two-centre phase II study

2016 ◽  
Vol 1 (4) ◽  
pp. 248-254 ◽  
Author(s):  
Boris Modrau ◽  
Niels Hjort ◽  
Leif Østergaard ◽  
Kim Mouridsen ◽  
Grethe Andersen ◽  
...  
Keyword(s):  
Thrombolytic Therapy ◽  
Ischaemic Stroke ◽  
Phase Ii ◽  
Acute Ischaemic Stroke ◽  
Phase Ii Study ◽  
Double Blinded

scholarly journals Comparison of Digital Subtraction Angiography Combined Arterial Thrombectomy Versus Simple Arterial Thrombectomy in the Treatment of Acute Lower Limb Ischemia

2021 ◽  
Author(s):  
Hongwei Ge ◽  
Bin Song ◽  
Xin Wang ◽  
Yunfeng Zhu ◽  
Yiming Huang ◽  
...  
Keyword(s):  
Blood Flow ◽  
Success Rate ◽  
Digital Subtraction Angiography ◽  
Lower Limb ◽  
Limb Ischemia ◽  
Digital Subtraction ◽  
Lower Limb Ischemia ◽  
Primary Surgery ◽  
Group A ◽  
Group B

Abstract Background: This study aimed to compare the clinical efficacy of digital subtraction angiography (DSA) combined arterial thrombectomy versus simple arterial thrombectomy in the treatment of acute lower limb ischemia (ALI). Methods: This retrospective cohort study collected the clinical data from 125 patients (129 affected lower limbs) with ALI who underwent emergency surgery from March 2010 to November 2019. Patients were consecutively divided into Group A and Group B. Patients in Group A underwent simple arterial thrombectomy via the Fogarty catheterization. Patients in Group B underwent arterial thrombectomy, and the DSA was performed during the surgery. The differences in the success rate of primary surgery, the second intervention rate, and the amputation/mortality rate within 30-d after surgery were compared. Results: In Group A, 4 of 70 limbs (5.7%) were amputated, 54 of 70 limbs (77.1%) had improved blood flow, 14 of 70 limbs (20.0%) received a second intervention, and 3 of 68 patients (4.4%) died within 30 d. In Group B, 1 of 59 limbs (1.7%) was amputated, 56 of 59 limbs (94.9%) had improved blood flow, 3 of 59 limbs (5.1%) received a second intervention, and 2 of 57 patients (3.5%) died within 30-d. The success rate of primary surgery, the second intervention rate, and the amputation rate of Group B were significantly lower than Group A (P<0.05). Conclusion: Arterial thrombectomy combined with DSA may effectively improve the clinical efficacy of patients with ALI.

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