scholarly journals To assess the diagnostic accuracy of Color Doppler ultrasound in antenatal diagnosis of placenta accreta taking histopathology as gold standard.

2020 ◽  
Vol 27 (12) ◽  
pp. 2681-2685
Author(s):  
Farzana . ◽  
Hafiza Khatoon ◽  
Ambreen Naz ◽  
Nousheen Mushtaq ◽  
Safia . ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Doppler Ultrasound ◽  
Gold Standard ◽  
Placenta Accreta ◽  
Antenatal Diagnosis ◽  
Color Doppler ◽  
Previous History ◽  
Color Doppler Ultrasound ◽  
History Of ◽  
The Mean

Objectives: To assess the diagnostic accuracy of color Doppler ultrasound in antenatal diagnosis of placenta accreta taking histopathology as gold standard. Study Design: Prospective study. Setting: Department of Obstetrics and Gynaecology, Gambat Institute of Medical Sciences Gambat, Khairpur Sindh. Period: 1st December 2018 to 30th June 2019. Material & Methods: Women aged 20-45 years with previous history of placenta accrete and uterine scar were selected for the study. Informed consent was taken from women with placenta Previa and previous scar to undergo Doppler ultrasound. Results: A total of 115 patients participated in this study during one year time period. The mean age of e participants was found to be 33.71±5.61 years. The mean gestational age was 35.24±2.7weeks. Out of total 115 cases, previous cesarean section was found in 48 (41.7%) cases and previous history of placenta accreta was found in 9 (7.8%) cases. Sensitivity of Color Doppler ultrasound in diagnosis of placenta accreta was 85.7% and specificity 96.6%. Conclusion: There has always been a debate about the use of different modalities in detection of placenta accreta and its surgical management. Our study shows high sensitivity and specificity of color Doppler ultrasound in detection of placenta accreta. Large scale studies must be carried out on government level comparing the results of color Doppler and MRI and their outcomes.  

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 Effect of Magnesium Sulfate on Doppler Parameters of Fetal Umbilical and Middle Cerebral Arteries in Women with Severe Preeclampsia

2012 ◽  
Vol 2 ◽  
pp. 85 ◽  
Author(s):  
Nazanin Farshchian ◽  
Negin Rezavand ◽  
Saeed Mohammadi
Keyword(s):  
Magnesium Sulfate ◽  
Doppler Ultrasound ◽  
Color Doppler ◽  
Cerebral Arteries ◽  
Color Doppler Ultrasound ◽  
Severe Preeclampsia ◽  
Resistivity Index ◽  
Middle Cerebral Arteries ◽  
Before And After ◽  
The Mean

Objective: To assess the effect of injecting magnesium sulfate on Doppler parameters of fetal umbilical and middle cerebral arteries (MCA) in women with severe preeclampsia. Materials and Methods: A total of 21 patients with severe preeclampsia admitted to Imam Reza Hospital, Kermanshah (Iran), were evaluated. Before and after administration of magnesium sulfate, Doppler ultrasound scan was carried out to measure fetal middle cerebral artery and umbilical artery blood flow. Paired t-test was used for statistical analysis. Results: After injection of magnesium sulfate, the mean resistivity index (RI)-umbilical, and pulsatility index (PI)-cerebral showed a statistically significant reduction (P < 0.001). The cerebroumbilical C/U ratio increased after the intervention (P < 0.001). The PI-umbilical (P = 0.1) and pre- and post-RI-cerebral (P = 0.96) did not have statistically significant changes. Conclusions: Infusion of magnesium sulfate significantly decreases the flow in the fetus RI-umbilical and PI-MCA, and it increases C/U ratio indices in color Doppler ultrasound.

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.

scholarly journals Should Scrotal Color Doppler Ultrasound Be Routinely Indicated in Fertility Evaluation of Non-Azoospermic Men?

2020 ◽  
Vol 14 (4) ◽  
pp. 211-218
Author(s):  
Minh Tam Le ◽  
Dac Nguyen Nguyen ◽  
Thi Thanh Tam Nguyen ◽  
Vu Quoc Huy Nguyen ◽  
Chi Kong Pham ◽  
...  
Keyword(s):  
Male Infertility ◽  
Doppler Ultrasound ◽  
Semen Quality ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Testicular Volume ◽  
Semen Parameters ◽  
Clinical Approach ◽  
Testis Volume ◽  
The Mean

<b><i>Objective: </i></b>Scrotal ultrasound is not a routine investigation in the clinical approach to male infertility analysis. This study aims to identify the role of testicular Doppler ultrasound in male infertility assessment and its relation to semen parameters in non-azoospermic men. <b><i>Methods: </i></b>Cross-sectional descriptive analysis of 558 men from infertile couples were examined at the Hue Center for Reproductive Endocrinology and Infertility, Hue University Hospital from June 2016 to May 2018. Some cohort characteristics, semen analysis and testicular Doppler ultrasound were analyzed. Men with acute systemic diseases, acute urinary tract infection, hepatic dysfunction, malignant diseases, retrograde ejaculation, cryptorchidism or azoospermia were excluded. <b><i>Results: </i></b>The mean volumes of the right and left testicles were 8.87 and 8.77 ml, respectively. The total volume of the 2 sides was 17.63 ± 4.34 ml (95% confidence interval 17.27-18.00 ml). The mean right resistive index (RI) was 0.61 ± 0.23, and the mean left RI was 0.59 ± 0.01. The rate of normal semen quality was 23.2% in group with varicocele and 30.6% in group with non-varicocele. The ultrasound results from the normal semen group were much different from those of the abnormal semen group regarding testicular volume: mean right testis volume: 9.67 ± 1.88 vs. 8.75 ± 2.34 ml, p = 0.0096; mean left testis volume: 9.54 ± 1.78 vs. 8.51 ± 2.44 ml, p = 0.0047; mean total volume of 2 sides: 19.21 ± 3.60 vs. 17.26 ± 4.59 ml, p = 0.005 (varicocele group); mean right testis volume: 9.21 ± 2.21 vs. 8.63 ± 2.21 ml, p = 0.029 (non-varicocele group). The other indexes of color Doppler ultrasound (peak systolic velocity, end diastolic velocity, RI) were not found to correlate with semen quality. <b><i>Conclusions: </i></b>Testicular volume which has a close relation to the semen parameters could be used as a clinical prediction factor for the quality of semen.

scholarly journals Evaluation of Extracranial Carotid Arteries in Ischemic Stroke Patients Using Color Doppler Sonography and Correlation with Various Risk Factors

2019 ◽  
Vol 8 (2) ◽  
pp. 10-14
Author(s):  
Manish Raj Pathak ◽  
Mahesh Gautam ◽  
Yagya Raj Pathak
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Doppler Ultrasound ◽  
Carotid Arteries ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Radiology Department ◽  
Atheromatous Plaque ◽  
P Value ◽  
History Of

Background: Cerebral ischemic stroke is the major cause of death after ischemic heart disease and malignancies, among which major cases of stroke results from atherosclerosis of intra and extra-cranial carotid vessels. The aim of this study is to evaluate the extracranial carotid arteries in patients with ischemic stroke and correlation with various risk factors. Materials and Methods: A cross sectional study of the patients with ischemic stroke presented in Radiology department of Nobel Medical College were evaluated for a period of one year from February 2017- January 2018 using color Doppler ultrasound and correlated with various risk factors. A total of 50 patients were included in the study. All age groups and sex were included. Results: Out of 50 patients, 29 patients (58%) were males and 21 patients (42%) were females. Stroke was present in 24 patients on right side and 26 patients on left side. A total of 36 patients had extra-cranial carotid stenosis. Among them, 18 patients had <50% stenosis, 17 patients had >50% stenosis and 1 patient had complete occlusion. The most common cause of obstruction was found to be atherosclerotic changes in the form of atheromatous plaque. Out of 50 patients 27 had history of hypertension and 19 had history of smoking. Out of 27 hypertensive patients, 23 had stenosis which is statistically significant (p value 0.024).    Conclusion: The current study shows the importance of color Doppler ultrasound as an economic, safe and non-invasive method of demonstrating the cause of stroke in extra-cranial carotid artery system

Posttraumatic Retronychia of the Foot with Clinical and Ultrasound Correlation

2017 ◽  
Vol 107 (3) ◽  
pp. 253-256 ◽  
Author(s):  
Mariana Pizarro ◽  
Nicolás Pieressa ◽  
Ximena Wortsman
Keyword(s):  
Differential Diagnosis ◽  
Doppler Ultrasound ◽  
Imaging Technique ◽  
Color Doppler ◽  
Nail Plate ◽  
Color Doppler Ultrasound ◽  
Nail Bed ◽  
Long Time ◽  
History Of ◽  
Traumatic Origin

Retronychia, the posterior embedding of the nail bed into the proximal nail fold, can be a complex clinical dermatologic diagnosis that may mimic other inflammatory ungual diseases or tumors of the nail. It has been related to a history of severe systemic conditions that secondarily affect the nail matrix and is commonly associated with onychomadesis. We present a case of retronychia of the foot with a purely traumatic origin, nonconcomitant with onychomadesis, that was diagnosed by color Doppler ultrasound in a long-time practitioner of martial arts who was otherwise healthy. Color Doppler ultrasound is an excellent imaging technique for supporting the diagnosis of retronychia. It provides information on the exact location and morphology of the nail plate as well as the presence of inflammatory signs in the ungual and proximal periungual regions. Additionally, this imaging technique can support the differential diagnosis with other nail conditions. Since there are many sports or activities that can potentially injure the toenails, retronychia may be an underestimated entity and the present case can raise the awareness of this condition and show the usefulness of color Doppler ultrasound.

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