scholarly journals Resistance index in differential diagnosis of liver lesions by color doppler ultrasonography

2004 ◽  
Vol 10 (7) ◽  
pp. 965 ◽  
Author(s):  
Yan Wang ◽  
Wen-Ping Wang ◽  
Hong Ding ◽  
Bei-Jian Huang ◽  
Feng Mao ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Ultrasonography ◽  
Liver Lesions

Intratumoral blood flow in cervical cancer as assessed by transvaginal color doppler ultrasonography: Correlation with tumor characteristics

2003 ◽  
Vol 13 (4) ◽  
pp. 510-514 ◽  
Author(s):  
J. L. Alcázar ◽  
G. Castillo ◽  
M. Jurado ◽  
G. LÓPEZ-GARCÍA
Keyword(s):  
Cervical Cancer ◽  
Blood Flow ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Ultrasonography ◽  
Advanced Stage ◽  
Histologic Type ◽  
Subjective Impression ◽  
Poorly Differentiated

The objective of this study was to evaluate whether intratumoral blood flow as assessed by transvaginal color Doppler ultrasonography (TVCD) correlates with some tumor features in cervical cancer. Clinical, sonographic, and histologic data on 49 women (mean age: 50.3 years, range: 25–85 years) diagnosed as having a carcinoma from the uterine cervix were reviewed. Intratumoral blood flow was assessed by TVCD in all cases. Subjective impression of the amount of flow (scanty, moderate, or abundant) as well as the lowest resistance index (RI) and highest peak systolic velocity (PSV, cm/s) were used for analysis. These data were correlated with some tumoral features such as histologic type, histologic grade, tumor volume, and tumor stage. Intratumoral blood flow was found in all cases. Abundant blood flow was found more frequently in squamous carcinoma, moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.0001). Significantly lower RI was found in moderately or poorly differentiated tumors and advanced stage tumors (P < 0.01) and significantly higher PSV was found in moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.01). No correlation was found between RI and PSV and histologic type. Our data indicate that intratumoral blood flow as assessed by TVCD correlates well with some tumor features in cervical cancer.

scholarly journals Value of sagittal color Doppler ultrasonography as a supplementary tool in the differential diagnosis of fetal cleft lip and palate

2017 ◽  
Vol 36 (1) ◽  
pp. 53-59
Author(s):  
Myoung Seok Lee ◽  
Jeong Yeon Cho ◽  
Sang Youn Kim ◽  
Seung Hyup Kim ◽  
Joong Shin Park ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Cleft Lip ◽  
Doppler Ultrasonography ◽  
Cleft Lip And Palate ◽  
Color Doppler ◽  
Color Doppler Ultrasonography

scholarly journals Testicular Arteriovenous Malformation: Gray-Scale and Color Doppler Ultrasonography Features

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Fatih Gulsen ◽  
Ismail Mihmanli ◽  
Fatih Kantarci ◽  
Abdulkadir Eren ◽  
Suleyman Onder Ataus
Keyword(s):  
Differential Diagnosis ◽  
Arteriovenous Malformations ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Solid Mass ◽  
Gray Scale ◽  
Testicular Tumors ◽  
Doppler Us ◽  
Incidental Lesions

Intratesticular arteriovenous malformations (AVMs) are extremely rare benign incidental lesions of the testis. Ultrasonography (US) generally reveals a hypoechoic solid mass within the testicular parenchyma. We describe a patient with intratesticular AVM which was found incidentally during workup for infertility. The gray-scale and Doppler US appearance of an intratesticular AVM and the differential diagnosis have been presented. Based on the gray-scale, US appearance differentiation from malignant testicular tumors is difficult. Doppler US examination aids in the diagnosis by demonstrating the vascular nature of the tumor.

scholarly journals Unusual Cause of Acute Scrotal Pain-Inflammatory Noncommunicating Hydrocele: A Pediatric Case Report

2018 ◽  
Vol 2018 ◽  
pp. 1-4
Author(s):  
Yoshinobu Moritoki ◽  
Kentaro Mizuno ◽  
Taiki Kato ◽  
Takahiro Yasui ◽  
Yutaro Hayashi
Keyword(s):  
Differential Diagnosis ◽  
Emergency Surgery ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Color Doppler Ultrasonography ◽  
Acute Scrotum ◽  
Pediatric Case ◽  
Scrotal Pain ◽  
Acute Scrotal Pain ◽  
General Physicians

The etiology of scrotal pain is clinically classified in terms of the necessity for emergency surgery. Lately, color Doppler ultrasonography has reduced unnecessary surgeries, but there are still some cases that require immediate exploration because of an uncertain diagnosis. Here, we describe the case of a 14-month-old boy, who could not deliver his complaint accurately, presenting with a grumpy mood and a red swollen scrotum. Emergency surgery revealed that the cause was intense inflammation of the hydrocele wall, which typically does not cause acute scrotum. We also reviewed rare etiologies of scrotal pain for general physicians to develop the differential diagnosis.

scholarly journals Efficacy of the Resistive Index of Color Doppler Ultrasonography in Differential Diagnosis of Benign and Malignant Hepatic Space Occupying Lesions

2017 ◽  
Vol 6 (1) ◽  
pp. 27-30
Author(s):  
Farhana Shimu ◽  
Enayet Karim ◽  
Abul Hashem Khan ◽  
Akhter Ahmed ◽  
Sultana Parvin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Differential Diagnosis ◽  
Doppler Ultrasonography ◽  
Malignant Tumors ◽  
Color Doppler ◽  
Resistive Index ◽  
Color Doppler Ultrasonography ◽  
Arterial Flow ◽  
Arterial Blood Flow ◽  
Doppler Spectrum

Background: Write the background in 1 to 2 sentences.Objective: The purpose of the present study was to estimate the efficacy of resistive index (RI) of color Doppler ultrasonography in different space occupying liver lesions.Methodology: This cross sectional study was conducted at in Bangabandhu Sheik Mujib Medical University (BSMMU), Dhaka from July 2010 to December 2012. All the patients presented with the suspicion of hepatic space occupying lesions were enrolled for this study who were later diagnosed clinically or ultrasonographically. This patients were also examined by color Doppler flow imaging. All patients were examined by gray scale ltrasonography, color Doppler and FNAC. To visualize the blood flow, standard color Doppler sonography is used for each lesion. Within the lesions, pulsed Doppler samples are assessed whenever possible on the basis of pulsatile flow. At least three measurements of resistive index (RI) of intra tumoral and peritumoral arterial blood flow would be the last mean value.Results: The detection rate of arterial flow in primary malignant tumors was 94.4% and 87.7% in hepatic metastasis. Doppler spectrum analysis showed the resistance index in primary malignant tumor was 0.75±0.12, 0.73±0.09 in metastatic tumor and was below 0.6 in benign lesions. The difference was significant (p<0.001). This difference was related with its histopathologic structure. The arterial flow with RI >0.6 in CDFI within the liver lesion can be regarded as a criterion of malignant tumors, RI <0.6 can be regarded as benign lesions.Conclusion: RI is more helpful in differential diagnosis of benign and malignant lever lesions.J Shaheed Suhrawardy Med Coll, June 2014, Vol.6(1); 27-30

scholarly journals Vascular Waveform Analysis of Flap-Feeding Vessels Using Color Doppler Ultrasonography

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Akihiro Ogino ◽  
Kiyoshi Onishi
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Ultrasonography ◽  
Waveform Analysis ◽  
Flow Volume ◽  
Arterial Waveform ◽  
Feeding Vessels

We performed vascular waveform analysis of flap-feeding vessels using color Doppler ultrasonography and evaluated the blood flow in the flaps prior to surgery. Vascular waveform analysis was performed in 19 patients. The analyzed parameters included the vascular diameter, flow volume, flow velocity, resistance index, pulsatility index, and acceleration time. The arterial waveform was classified into 5 types based on the partially modified blood flow waveform classification reported by Hirai et al.; in particular, D-1a, D-1b, and D-2 were considered as normal waveforms. They were 4 patients which observed abnormal vascular waveform among 19 patients (D-4 : 1, D-3 : 1, and Poor detect : 2). The case which presented D-4 waveform changed the surgical procedure, and a favorable outcome was achieved. Muscle flap of the case which presented D-3 waveform was partially necrosed. The case which detected blood flow poorly was judged to be the vascular obstruction of the internal thoracic artery. In the evaluation of blood flow in flaps using color Doppler ultrasonography, determination of not only basic blood flow information, such as the vascular distribution and diameter and flow velocity, but also the flow volume, vascular resistance, and arterial waveform is essential to elucidate the hemodynamics of the flap.

Sign in / Sign up

Export Citation Format

Share Document