scholarly journals COLOR DOPPLER ULTRASONOGRAPHY FINDINGS IN KIDNEY ALLOGRAFTS BEFORE AND AFTER TRANSPLANTATION

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Suraj Mathur ◽  
P. Rajan ◽  
Dr. Jaya Kumar E. K
Keyword(s):  
Doppler Ultrasound ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Vascular Complications ◽  
Biochemical Parameter ◽  
Color Doppler Ultrasound ◽  
Color Doppler Ultrasonography ◽  
Kidney Allograft ◽  
Significant Difference

Method: A sample size of 40 kidney allograft recipients undergoing color Doppler Ultrasonography evaluation included in the study. Result: Corticomeduallry differentiation of kidney allografts within 24 hours post transplant period: There was no significant difference between CMD of kidney allorgrafts with complication and kidney allografts without any complication within 24 hour because the standard deviations of both groups were 0. Corticomeduallry differentiation in all kidney allografts, all were shows maintained corticomedullary differentiation. Conclusion: This study is aimed to assessing the role of CDUS in kidney allograft recipients to evaluate the graft perfusion immediate after anastamosis, within 24 hours and follow up period after engraftment of kidney allograft. Analyse the Color Doppler Ultrasound (CDUS) indices changes in parenchymal, and vascular cause of allograft dysfunction at follow up periods, to evaluate the uroloical, surgical and vascular complications in kidney recipients by using gray scale and color Doppler US at follow up periods and compare the results with biochemical parameter (serum creatinine). Immediate Doppler ultrasound is highly useful in the diagnosis of primary graft dysfunction and in follow-up of the transplanted patient. Keywords: Graft Perfusion, Anastamosis, Color, Doppler, Ultrasound

Diagnostic Value of Color Doppler Ultrasonography in Detecting Calcifications in Thyroid Nodules for Benign and Malignant Nodules

2020 ◽  
Vol 10 (7) ◽  
pp. 1621-1630
Author(s):  
Xia Liu ◽  
Defeng Chang ◽  
Dan Xie
Keyword(s):  
Thyroid Cancer ◽  
Doppler Ultrasound ◽  
Doppler Ultrasonography ◽  
Thyroid Nodules ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Diagnostic Value ◽  
Color Doppler Ultrasonography ◽  
Benign Nodules ◽  
Coarse Calcification

Objective: To investigate the diagnostic value of color Doppler ultrasonography in detecting calcifications in thyroid nodules for benign and malignant thyroid nodules. Methods: This study selects 108 patients with thyroid nodules who underwent color Doppler ultrasonography at designated hospitals from June 2013 to June 2018 as study subjects, retrospectively analyzes their general patient data, preoperative color Doppler ultrasound data and postoperative pathological diagnosis results, and discusses the diagnostic value of calcification rate, calcification type and calcification characteristics for benign and malignant thyroid nodules. Results: The results show that preoperative color Doppler ultrasonography found 112 thyroid nodules in 108 patients, including 72 benign nodules and 40 malignant nodules; pathological analysis confirmed 124 thyroid nodules, including 78 benign nodules and 46 malignant nodules; the diagnostic coincidence rate of color Doppler ultrasound is 90.32% (112/124), the misdiagnosis rate is 9.68% (12/124), the specificity is 86.94%, and the sensitivity is 81.27%; in these 112 thyroid nodules, 89 nodules were calcified accounting for 79.46%; in 72 benign nodules, 13 nodules were calcified accounting for 18.06%; in 40 malignant nodules, 17 were calcified accounting for 42.50%; the calcification of malignant nodules was significantly higher than that of benign nodules; in 72 benign nodules, 6 cases is coarse calcification accounting for 8.33%, 3 cases is cyclic calcification accounting for 4.16%, and cyclic and coarse calcification are only 23.46% sensitive to thyroid cancer; in 40 malignant nodules, 3 cases is coarse calcification accounting for 7.5%, and 2 cases is cyclic calcification accounting for 5.00%. Conclusions: According to the analysis, the calcification in thyroid nodules has relatively high sensitivity and specificity for the diagnosis of benign and malignant nodules and it can be used as a specific index for screening thyroid cancer.

scholarly journals Renal Allograft Torsion: US and CT Imaging Findings of a Rare Posttransplant Complication

2016 ◽  
Vol 2016 ◽  
pp. 1-3 ◽  
Author(s):  
Rohit Dewan ◽  
Anil K. Dasyam ◽  
Henke Tan ◽  
Alessandro Furlan
Keyword(s):  
Doppler Ultrasound ◽  
Renal Allograft ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Imaging Findings ◽  
Unenhanced Ct ◽  
Doppler Signals ◽  
History Of ◽  
Normal Blood Flow

Vascular torsion is a rare renal transplant complication which requires prompt diagnosis and surgery to salvage allograft function. We report here a case of renal allograft torsion with interesting imaging findings on unenhanced CT and color Doppler ultrasound. A 60-year-old woman with a history of pancreas and kidney transplant presented to the emergency room with nausea, vomiting, abdominal pain, and minimal urine output. Unenhanced CT of the abdomen demonstrated an enlarged and malrotated renal allograft with moderate hydronephrosis. Color Doppler ultrasound demonstrated lack of vascularity within the allograft. The patient was taken urgently to the operating room where the renal allograft was found twisted 360 degrees around the vascular pedicle. After the allograft was detorsed, the color of the kidney returned and the Doppler signals for arterial flow improved. Intraoperative biopsy showed no evidence of infarct or acute cellular rejection. The detorsed kidney was surgically fixed in position in its upper and lower poles. Follow-up ultrasound 1 day later demonstrated normal blood flow to the renal allograft and the serum level of creatinine returned to normal.

scholarly journals Venous leakage treatment revisited: pelvic venoablation using aethoxysclerol under air block technique and Valsalva maneuver

2015 ◽  
Vol 87 (1) ◽  
pp. 1 ◽  
Author(s):  
Ralf Herwig ◽  
Salvatore Sansalone
Keyword(s):  
Doppler Ultrasound ◽  
Valsalva Maneuver ◽  
Color Doppler ◽  
Pde5 Inhibitor ◽  
Penile Prosthesis ◽  
Cost Effective ◽  
Color Doppler Ultrasound ◽  
Pde5 Inhibitors ◽  
Venous Leakage

Objective: We evaluated the effectiveness of pelvic vein embolization with aethoxysclerol in aero-block technique for the treatment of impotence due to venous leakage in men using sildenafil for intercourse. The aim of the procedure was to reduce the use of sildenafil. Methods: A total of 96 patients with veno-occlusive dysfunction, severe enough for the need of PDE5 inhibitors for vaginal penetration, underwent pelvic venoablation with aethoxysclerol. The mean patient age was 53.5 years. Venous leaks were identified by Color Doppler Ultrasound after intracavernous alprostadil injection. Under local anesthesia a 20-gauge needle was inserted into the deep dorsal penile vein. The pelvic venogram was obtained through deep dorsal venography. Aethoxysclerol 3% as sclerosing agent was injected after air-block under Valsalva manoeuver. Success was defined as the ability to achieve vaginal insertion without the aid of any drugs, vasoactive injections, penile prosthesis, or vacuum device. Additionally, a pre- and post- therapy IIEF score and a digital overnight spontaneous erections protocol (OSEP) with the NEVA™-system was performed. Results: At 3 month follow-up 77 out of 96 patients (80.21%) reported to have erections sufficient for vaginal insertion without the use of any drug or additional device. Four (4.17%) patients did not report any improvement. Follow up with color Doppler ultrasound revealed a new or persistent venous leakage in 8 (8.33%) of the patients. No serious complications occurred. Conclusions: Our new pelvic venoablation technique using aethoxysclerol in air-block technique was effective, minimally invasive, and cost-effective. All patients were able to perform sexual intercourse without the previously used dosage of PDE5 inhibitor. This new method may help in patients with contra-indications against PDE5 inhibitors, in patients who cannot afford the frequent usage of expensive oral medication or those who do not fully respond to PDE5-inhibitors.

scholarly journals Contribution of pre-varicocelectomy color Doppler ultrasonography finding to surgery and its correlation with semen parameters

2021 ◽  
Vol 93 (2) ◽  
pp. 227-232
Author(s):  
Caner Ediz ◽  
Muhammed Cihan Temel ◽  
Suna Şahin Ediz ◽  
Serkan Akan ◽  
Serkan Yenigürbüz ◽  
...  
Keyword(s):  
Physical Examination ◽  
Doppler Ultrasonography ◽  
Semen Analysis ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Semen Parameters ◽  
Significant Difference ◽  
Group 2 ◽  
Grade 3 ◽  
Group 1

Background: This study aimed to determine the contribution of color Doppler ultrasonography (CDUS) performed before varicocelectomy to the success of surgical treatment and to evaluate the correlation between CDUS findings and semen parameters. Methods: A total of 84 patients diagnosed with grade 3 left varicocele in our clinic between 2016 and 2018 were evaluated. The patients in whom the decision for varicocelectomy was based on only physical examination (PE) findings and abnormal semen analysis (SA) were defined as Group 1, while the patients undergoing varicocelectomy based on PE, CDUS and SA findings were defined as Group 2. The patients diagnosed with varicocele based on PE and CDUS findings who were included in a followup protocol due to normal semen parameters were defined as Group 3. Results: In Group 1, there was a total of 28 patients and the mean number of ligated internal spermatic veins was 4.53 (range, 2-10). In Group 2, there was a total of 30 patients and the number of ligated internal spermatic veins was 3.76 (range, 1-8). No statistically significant difference was found between Group 1 and 2 in terms of the number of internal spermatic veins ligated during varicocelectomy. No statistically significant correlation was found between semen parameters and the number of veins ligated during varicocelectomy in Group 1 and 2 and between semen parameters and CDUS findings group 2 and 3. Conclusions: In patients with primary grade 3 varicocele, diagnosed by physical examination there is no need for additional imaging in primary cases.

Endovenous laser ablation and sclerotherapy for incompetent vein of Giacomini

2013 ◽  
Vol 29 (8) ◽  
pp. 511-516 ◽  
Author(s):  
Ismail Guzelmansur ◽  
Levent Oguzkurt ◽  
Nihal Koca ◽  
Cagatay Andic ◽  
Murat Gedikoglu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Clinical Severity ◽  
Ultrasound Guided ◽  
Foam Sclerotherapy ◽  
Endovenous Laser Ablation ◽  
Vein Insufficiency

Purpose To retrospectively evaluate the feasibility and effectiveness of endovenous laser ablation or ultrasound-guided foam sclerotherapy for Giacomini vein insufficiency. This is the largest cohort of patients treated for Giacomini vein insufficiency with endovenous laser ablation or ultrasound-guided foam sclerotherapy. Material and methods Over a three-year period, 23 females and nine males (age range, 19–67 years) treated for Giacomini vein insufficiency with or without saphenous vein insufficiency were retrospectively reviewed. Diagnosis of venous insufficiency was made by color Doppler ultrasonography. Symptomatic insufficiency of the Giacomini vein or the saphenous veins was treated with endovenous laser ablation. Ultrasound-guided foam sclerotherapy was used for tortuous incompetent Giacomini veins. The venous disease was categorized according to the clinical, etiological, anatomical, and pathological classification, and clinical severity was graded with the venous clinical severity score. Follow-up included clinical examination and color Doppler ultrasonography. Results Thirty-nine limbs in 32 patients were treated (25 endovenous laser ablation and seven ultrasound-guided foam sclerotherapy). All procedures were technically successful. One patient in the ultrasound-guided foam sclerotherapy group had a recurrence with successful repeated treatment. Recurrence was not seen in the endovenous laser ablation group. No complications were observed. All patients had resolution and improvement in 100% of their symptoms at 12 months of follow-up. Conclusion Giacomini vein insufficiency is mostly seen with insufficiency of the great saphenous vein and can be effectively treated with endovenous laser ablation or ultrasound-guided foam sclerotherapy.

scholarly journals CAROTID ARTERY STENOSIS

2017 ◽  
Vol 24 (08) ◽  
pp. 1126-1131
Author(s):  
Muhammad Ishaq Khattak ◽  
Faramoz Khan ◽  
Zahid Fida ◽  
Adnan Zar
Keyword(s):  
Ischemic Stroke ◽  
Carotid Artery ◽  
Doppler Ultrasound ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Cross Sectional Study ◽  
Vascular Events ◽  
Cross Sectional ◽  
Carotid Artery Atherosclerosis

Objectives: The objective of this study is to determine the frequency of carotidartery atherosclerosis using color Doppler ultrasound in ischemic stroke patients. StudyDesign: Cross-sectional study. Period: July 2015 to June 2016. Setting: Khyber TeachingHospital, Peshawar. Method: Doppler ultrasonography was done to assess carotid artery statusin patients diagnosed with cerebral infarction. Results: Data comprised of 174 ischemic strokepatients between ages 37-95 years. 111 were males whereas 63 were males. Mean age wasfound to be 64.03±11.71 years. Doppler ultrasound revealed carotid artery atherosclerosis in52.3% (n=91) patients with 57% males and 34% females. Right carotid artery involvement wasfound in 28 patients and left carotid artery involvment in 38 patients. Both carotid arteries wereinvolved in 25 patients. Conclusion: We have concluded that carotid artery atherosclerosis is anindependent predictor for future vascular events. Our study reports carotif artery atherosclerosisin 52.3% patients with ischemic stroke.

The Utility of Color Doppler Ultrasound to Explore Vascular Complications After Filler Injection

2017 ◽  
Vol 43 (12) ◽  
pp. 1508-1510 ◽  
Author(s):  
Hyun Jung Kwon ◽  
Beom Joon Kim ◽  
Eun Jung Ko ◽  
Sun Young Choi
Keyword(s):  
Doppler Ultrasound ◽  
Color Doppler ◽  
Vascular Complications ◽  
Color Doppler Ultrasound ◽  
Filler Injection

scholarly journals Evaluation of Corpus Luteum Vascularization in Recipient Mares by Using Color Doppler Ultrasound

2021 ◽  
Vol 49 ◽  
Author(s):  
Marlon De Vasconcelos Azevedo ◽  
Natália Matos Souza ◽  
Felipe Augusto Boudoux Martins Sales ◽  
José Carlos Ferreira-Silva ◽  
Maiana Silva Chaves ◽  
...  
Keyword(s):  
Corpus Luteum ◽  
Embryo Transfer ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Doppler Imaging ◽  
Panicum Maximum ◽  
Progesterone Concentration ◽  
Vascular Perfusion ◽  
Significant Difference

Background: Embryo transfer is one of the most commonly used reproductive biotechnique. The success of embryo transfer is also affected by the synchrony of estrus and ovulation between donor and recipient animals. In horse reproduction, ultrasonography has been used, among other purposes, to diagnose early pregnancy. However, only the color Doppler imaging mode makes it possible to evaluate the vascular architecture and the hemodynamic aspects of the vessels in several organs, especially the corpus luteum. The objective of this study was to evaluate, based on the color Doppler ultrasound, the corpus luteum vascularization and function from recipient mares at embryo transfer timing.Materials, Methods & Results: Mangalarga Machador mares from 5 to 10-year-old and a range of live weights of between 350 to 450 kg were used for this experiment, kept in pasture-based on mombaça grass (Panicum maximum) and were given ad libitum access to water and mineral supplementation. The animals (n = 15) were gynecologically examined and uterine consistency was evaluated by rectal palpation the same operator using an ultrasound system (SonoScape®) with a linear transducer, and operating frequency ranging from 5 to 10 Mhz. The uterine tone was classified between grades 1 and 4 and subjected to ovulation induction. The objective and subjective vascular perfusion of the corpus luteum was evaluated by color Doppler ultrasound on the day of embryo transfer and endometrium. The determination progesterone concentration on the day of the embryo transfer was performed by direct chemiluminescence assay. The arcsine (√P/100) transformation was applied to the percentage data, and the results were expressed as mean (.) ± standard error of the mean (SEM). Further, the assumptions of normality and homoscedasticity were verified, respectively, based on the Shapiro-Wilk and Lilliefors tests. Regarding the parametric and non-parametric variables, were applied, respectively, analysis of variance (ANOVA) followed by Tukey’s test, and the Kruskal-Wallis test followed by Dunn’s test. Pearson’s correlation coefficient was used to evaluate the relationship between the parameters. The statistical program SPSS 16.0 was used to perform the over-mentioned analyses, and a p-value < 0.05 was taken as significant. Corpus luteum vascular perfusion, based on the objective and subjective evaluation methods, and the progesterone concentration were higher in the pregnant mares (P < 0.05). The objective and subjective methods for evaluation of the vascular perfusion in the corpus luteum were positively correlated between themselves as well as to progesterone concentration (P < 0.05). There was no significant difference between the groups considering the uterine tonus evaluation (P > 0.05).Discussion: Mares that later became pregnant showed a higher concentration of progesterone as an outcome of the higher vascularization in the corpus luteum. It can be supported by both the correlation between the progesterone concentration and the corpus luteum vascular perfusion, as well as by the higher values of the vascular perfusion in pregnant mares. Based on the results, it has been concluded that the color Doppler ultrasound evaluation is an accurate tool to determine the corpus luteum vascularization, whether considering the objective or subjective methods. Also, the vascular perfusion is the most efficient parameter to determine both the corpus luteum function and to predict the ability of the recipient mares to maintain pregnancy.

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