Application of Color Doppler Ultrasound in the Treatment of Vascular Diseases Around the Cardia

2020 ◽  
Vol 10 (9) ◽  
pp. 2106-2111
Author(s):  
Guangjun Yan ◽  
Zhijiang Li ◽  
Weiwei Gu ◽  
Jie Lin ◽  
Xingyu Hong ◽  
...  
Keyword(s):  
Blood Flow ◽  
Portal Vein ◽  
Hepatic Artery ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Vascular Diseases ◽  
Maximum Flow ◽  
Color Doppler Ultrasound ◽  
Case Group ◽  
Maximum Flow Velocity

Objective: This paper uses color Doppler ultrasound technology to study the hemodynamic characteristics of portal hypertension and splenectomy plus pericardial vascular disruption, to understand the pathogenesis of portal hypertension, and to understand the spleen. The effects of resection and pericardial vascular dissection on portal vein and hepatic artery hemodynamics were analyzed. Methods: Nine male in our hospital’s hepatobiliary surgery from January 2017 to December 2018 were selected. The preoperative upper gastrointestinal barium meal or gastroscopy confirmed that all patients had moderate to severe esophageal and gastric fundus. The surgical method was splenectomy and pericardial vascular disconnection. Color Doppler ultrasound was performed on portal vein and hepatic arterial hemodynamics to observe the presence or absence of portal vein thrombosis. Result: Preoperative hemodynamic status of the case group: the diameter of the hepatic artery was (0.34±0.01) cm, the value is 0.34 cm; the maximum flow velocity of the hepatic artery was (64.6±5.0) cm/s, the value of 64.7 cm/s; The postoperative hemodynamic status of the case group: the diameter of the hepatic artery was (0.41±0.02) cm, the value of 0.41 cm; the maximum flow velocity of the hepatic artery was (88.5±6.1) cm/s, the value of 89.6 cm/s. Conclusion: Color Doppler ultrasound has obvious application value in the treatment of pericardial vascular diseases. 1 splenectomy and pericardial vascular disconnection can increase the flow of hepatic artery, and reduce the total blood flow into the liver after surgery. The proportion of hepatic arterial blood flow increased, and the oxygen supply to increase.

scholarly journals Hemodynamic Changes in Portal Vein and Frequencies of Acute and Chronic Portal Vein Thrombosis in Pediatric Patients Presenting with Hematemesis

2016 ◽  
Vol 22 (4) ◽  
Author(s):  
Ahmad Imran ◽  
Amna Tariq ◽  
Abid Ali Qureshi
Keyword(s):  
Portal Vein ◽  
Portal Vein Thrombosis ◽  
Doppler Ultrasound ◽  
Pediatric Patients ◽  
Color Doppler ◽  
Cost Effective ◽  
Color Doppler Ultrasound ◽  
Diagnostic Modality ◽  
Cross Sectional ◽  
Vein Thrombosis

<p><strong>Objective:</strong>  The objective of the study is to calculate the frequency of portal vein thrombosis in pediatric patients presenting with hematemesis and to estimate the frequency of acute and chronic portal vein thrombosis in these cases.</p><p><strong>Patients and Methods:</strong><strong>  </strong>Pediatric patients of 1 – 15 years of age of either sex, presenting to emergency or gastroenterology department with complaint of hematemesis were included. Informed consent was taken from parents/guardians. This is a Descriptive cross sectional study conducted in department of pediatric radiology, Children Hospital and Institute of child Health Lahore from 11-12-2012 to 10-6-2013. Doppler ultrasound of these patients was performed at Core Vision pro SSA 350-A Doppler machine (Toshiba, Japan) using standard imaging protocols. The data was analyzed using SPSS version 17.0 (SPSS Inc., IL, Chicago, USA)</p><p><strong>Results:</strong><strong>  </strong>In this study, 41% (n = 41) between 1 – 5 years, 38% (n = 38) between 6 – 10 years and only 21% (n = 21) between 11 – 15 years of age, 64%( n = 64) were male and remaining 36% (n = 36) were females, frequency of portal vein thrombosis in pediatric patients presenting with hematemesis reveals in 37% (n = 37) while 63% (n = 63) had no findings of PVT, frequency of acute and chronic forms in patients positive for portal vein thrombosis was 40.54% (n = 15) had acute and 59.46% (n = 22) had chronic portal vein thrombosis.</p><p><strong>Conclusion:</strong><strong>  </strong>We concluded that the frequency of portal vein thrombosis in pediatric patients presenting with hematemesis and frequency of acute and chronic forms in patients positive for portal vein thrombosis is in accordance with other studies while color Doppler ultrasound is a useful diagnostic modality being noninvasive and cost effective.</p>

scholarly journals A preliminary study on the ultrasonic manifestations of peripulmonary lesions of non-critical novel coronavirus pneumonia (COVID-19) 

2020 ◽  
Author(s):  
Yi Huang ◽  
Sihan Wang ◽  
Yue Liu ◽  
Yaohui Zhang ◽  
Chuyun Zheng ◽  
...  
Keyword(s):  
Blood Flow ◽  
Clinical Diagnosis ◽  
Doppler Ultrasound ◽  
Close Contact ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Area 17 ◽  
Efficacy Evaluation ◽  
Clinical Trial Registry ◽  
B Lines

Abstract Background: Ultrasound is used to observe the imaging manifestations of COVID-19 in order to provide reference for real-time bedside evaluation.Purpose: To explore the ultrasonic manifestations of peripulmonary lesions of non-critical COVID-19, so as to provide reference for clinical diagnosis and efficacy evaluation.Materials and Methods: The clinical and ultrasonic data of 20 patients with clinically diagnosed non-critical COVID-19 treated in Xi'an Chest Hospital during January and February 2020 were retrospectively analyzed. Conventional two-dimensional ultrasound and color Doppler ultrasound were used to observe the characteristics of lesions. Results: All 20 patients (40 lungs and 240 lung areas) had a history of travel, residence or close contact in/with Wuhan, and 5 of them caught COVID-19 after family gatherings. Lesions tended to occur in both lungs. Lesions in the lung areas: 14 in L1+R1 area (14/40), 17 in L2+R2 area (17/40), 17 in L3+R3 area (17/40), 17 in L4+R4 area (17/40), 20 in L5+R5 area (20/40), and 28 in L6+R6 area (28/40). Lesion types: rough and discontinuous pleural line (36/240), subpleural consolidation (53/240), air bronchogram sign or air bronchiologram sign in subpleural peripleural consolidation (37/240), visible B lines (91/240), localized pleural thickening (19/240), localized pleural effusion (24/240), poor blood flow in the consolidation detected by color Doppler ultrasound (50/53).Conclusion: The non-critical COVID-19 has characteristic ultrasonic manifestations, which are visible in the posterior and inferior areas of the lung. The lesions are mainly characterized by a large number of B lines, subpleural pulmonary consolidation and poor blood flow. Lung ultrasound can provide reference for the clinical diagnosis and efficacy evaluation. Chinese Clinical Trial Registry: ChiCTR2000030032Approval for Scientific Research Project: No. 2020-S0001

scholarly journals Validation of color Doppler ultrasound and computed tomography in the radiologic assessment of non-malignant acute splanchnic vein thrombosis

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261499
Author(s):  
Lukas Sturm ◽  
Dominik Bettinger ◽  
Christoph Klinger ◽  
Tobias Krauss ◽  
Hannes Engel ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Portal Vein ◽  
Doppler Ultrasound ◽  
Gold Standard ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Splanchnic Vein Thrombosis ◽  
Vein Thrombosis ◽  
Cohen's Kappa ◽  
Radiologic Assessment

Introduction International guidelines propose color Doppler ultrasound (CDUS) and contrast-enhanced computed tomography (CT) as primary imaging techniques in the diagnosis of acute splanchnic vein thrombosis. However, their reliability in this context is poorly investigated. Therefore, the aim of our study was to validate CDUS and CT in the radiologic assessment of acute splanchnic vein thrombosis, using direct transjugular spleno-portography as gold standard. Materials and methods 49 patients with non-malignant acute splanchnic vein thrombosis were included in a retrospective, multicenter analysis. The thrombosis’ extent in five regions of the splanchnic venous system (right and left intrahepatic portal vein, main trunk of the portal vein, splenic vein, superior mesenteric vein) and the degree of thrombosis (patent, partial thrombosis, complete thrombosis) were assessed by portography, CDUS and CT in a blinded manner. Reliability of CDUS and CT with regard to portography as gold standard was analyzed by calculating Cohen’s kappa. Results Results of CDUS and CT were consistent with portography in 76.6% and 78.4% of examinations, respectively. Cohen’s kappa demonstrated that CDUS and CT delivered almost equally reliable results with regard to the portographic gold standard (k = 0.634 [p < 0.001] vs. k = 0.644 [p < 0.001]). In case of findings non-consistent with portography there was no clear trend to over- or underestimation of the degree of thrombosis in both CDUS (60.0% vs. 40.0%) and CT (59.5% vs. 40.5%). Conclusions CDUS and CT are equally reliable tools in the radiologic assessment of non-malignant acute splanchnic vein thrombosis.

Placental Blood Flow by Three-dimensional Doppler Ultrasound

2016 ◽  
Vol 10 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Ivica Zalud
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Rapid Development ◽  
Three Dimensional ◽  
Color Doppler Ultrasound ◽  
Clinical Applications ◽  
Ultrasound Technique ◽  
Placental Blood ◽  
Placental Blood Flow

ABSTRACT This review aims to provide the reader with an overview of the potential clinical applications in three-dimensional (3D) Doppler ultrasound for the evaluation of vascularity and blood flow within the placenta. Significant innovations have recently occurred, improving the visualization and evaluation of placental vascularity, resulting from enhancements in delineation of tissue detail through electronic compounding and harmonics, as well as enhancements in signal processing of frequencyand/ or amplitude-based color Doppler ultrasound. Spatial representation of vascularity can be improved by utilizing 3D processing. Greater sensitivity of 3D Doppler ultrasound to macro- and microvascular flow has provided improved anatomical and physiologic assessment throughout pregnancy. The rapid development of these new sonographic techniques will continue to enlarge the scope of clinical applications in placental studies. Three-dimensional Doppler sonography is a unique ultrasound technique that enables assessment of vascular signals within the whole investigated area. Homodynamic changes included in the process of placentation are one of the most exciting topics in the investigation of early human development. How to cite this article Zalud I. Placental Blood Flow by Threedimensional Doppler Ultrasound. Donald School J Ultrasound Obstet Gynecol 2016;10(1):55-62.

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