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 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

Postbiopsy Arteriovenous Fistula in Renal Allograft: Diagnosis with Color Doppler Ultrasound

1990 ◽  
Vol 7 (03/04) ◽  
pp. 198-200
Author(s):  
M. Casal ◽  
E. Górriz ◽  
L. Hortal ◽  
J. Rodriguez ◽  
J. Pulido-Duque ◽  
...  
Keyword(s):  
Arteriovenous Fistula ◽  
Doppler Ultrasound ◽  
Renal Allograft ◽  
Color Doppler ◽  
Color Doppler Ultrasound

scholarly journals Color Doppler ultrasound characteristics after subinguinal microscopic varicocelectomy

2017 ◽  
Vol 19 (1) ◽  
pp. 59 ◽  
Author(s):  
Murat Akand ◽  
Mustafa Koplay ◽  
Necat Islamoglu ◽  
Emre Altintas ◽  
Ozcan Kilic ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Color Doppler ◽  
Sperm Concentration ◽  
Peak Systolic Velocity ◽  
Resistive Index ◽  
Color Doppler Ultrasound ◽  
Semen Parameters ◽  
Pain Scores ◽  
Made In

Aim: The present study evaluated the effect of differences in the peak systolic velocity (PSV) and resistive index (RI) in the testicular artery (TA), capsular artery (CA), and intratesticular artery (ITA) after microscopic subinguinal varicocelectomy (MSV) on postoperative pain and semen parameters. Patients and Methods: Scrotal color Doppler ultrasound (CDUS) measurements were made in 33 patients (age 18-31 years) prior to MSV and 3 and 6 months after MSV. Pain was recorded using a visual analog scale and sperm concentration was determined to analyze the predictive value of the CDUS parameters regarding surgical outcome. Results: A significant decrease in pain scores was observed in most patients at both follow-ups. The first postoperative CDUS revealed a significant increase in the TA-PSV (p<0.001) and a decrease in the TA-RI (p=0.002) and CARI (p=0.006). The second postoperative CDUS also revealed a significant increase in the TA-PSV and a decrease in the TA-RI, and the PSV in the ITA and CA and RI in the ITA and CA were significantly different from the values obtained pre-operatively and at the first follow-up. A negative correlation was found between the pain level and TA-PSV (r=-0.433, p=0.012), whereas sperm concentration positively correlated with both the TA-PSV and CA-PSV (r=0.534, p=0.001 and r=0.455, p=0.008, respectively).Conclusions: The PSV and RI are useful parameters for detecting changes in testicular microhemodynamics after MSV. In addition, the TA-PSV and CA-PSV can be used to predict improvements in pain and sperm concentration.

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

Color Doppler Ultrasound Follow-Up of Infantile Hemangiomas and Peripheral Vascularity in Patients Treated with Propranolol

2015 ◽  
Vol 32 (4) ◽  
pp. 468-475 ◽  
Author(s):  
Ana M. Kutz ◽  
Ligia Aranibar ◽  
Nelson Lobos ◽  
Ximena Wortsman
Keyword(s):  
Doppler Ultrasound ◽  
Color Doppler ◽  
Color Doppler Ultrasound

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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