Role of B-color and Resolution Sonography Presets for the Diagnosis of Lower Extremity Deep Vein Thrombosis

DeCosta, Lindsay; Guthrie, Joy D.

doi:10.1177/8756479314563540

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…Despite the fact that quantitative phantom measurements of imaging metrics such as spatial resolution and contrast were comparable between the two systems, 3 radiologists were not satisfied with the image appearance on one vendor system (denoted as system 1), and preferred the system of another vendor (denoted as system 2). Adjustment of image presets might solve the issue with system 1; however, there is a lack of study of preset optimization in the literature 4,5 …”

Section: Introductionmentioning

confidence: 99%

Systematic optimization of ultrasound grayscale imaging presets and its application in abdominal scanning

Long

Zhou

Tradup

et al. 2020

J Applied Clin Med Phys

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Purpose Ultrasound grayscale imaging preset optimization has often been qualitative and dependent upon vendor application specialists. This study aimed to propose a systematic approach for grayscale imaging preset optimization and apply the approach in a clinical abdominal scan setting. Methods A six‐step approach was detailed including identification of clinical task, adjustment of basic parameters, fine‐tuning of advanced parameters, image performance metrics confirmation, clinical evaluation and data analysis, and implementation of new presets and monitoring of clinical usage. Its application in an abdominal scanning task was described for each step with phantoms, volunteers, and software tools. Results Clinical image data analytics facilitated the understanding of the imaging task, relevant transducers, and target characteristics, in addition to specific requests from radiologists. Quantitative measurements were made on global image contrast and gray map function. In addition, clinically relevant phantoms and volunteer scans without and with acoustic distortion layers were involved to determine the new presets. Furthermore, phantom signal to noise ratio study and clinical evaluation using volunteers with different body habitus were utilized to confirm the superiority of the new presets. Quantitative clinical usage monitoring demonstrated successful implementation of the new presets. Conclusions A systematic approach for grayscale imaging preset optimization has been proposed and successfully applied for a specific clinical task. This approach was designed to be generalizable and relatively flexible, which would facilitate movement away from previous qualitative and subjective approaches.

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Section: Introductionmentioning

confidence: 99%

Systematic optimization of ultrasound grayscale imaging presets and its application in abdominal scanning

Long

Zhou

Tradup

et al. 2020

J Applied Clin Med Phys

View full text Add to dashboard Cite

show abstract

Diagnostic Accuracy of Color Doppler Ultrasonography among Patients Having Deep Vein Thrombosis by Taking Venography as Gold Standard

Shahzad

Kumar

et al. 2020

JPRI

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Objective: To assess the diagnostic accuracy of Color Doppler ultrasonography in patients with Deep Venous Thrombosis by using venography as gold standard at Radiology department of Civil Hospital Karachi. Methodology: This cross-sectional study was carried out from August 2014 to March 2015 at Radiology Unit, Civil Hospital Karachi. Patients of either gender with deep venous thrombosis were included based on clinical examination and observation. For Doppler ultrasound, the combinations of spectral scanning, color compression, and grey scale were used. Potential anomalies including existing or non-existing thrombus along with its magnitude were evaluated. Color Doppler Sonographic results included incompressible, lack of phasicity, site of flow space and absence of increasing trend. Scan diagnosis was subsequently contrasted with venographic reports and recorded in self-made proforma. Data was analyzed by using SPSS version 20. Results: Total 104 patients were studied and their average age was 52.4±9.4 years. Males and females were 56% and 44% respectively. Color Doppler ultrasonography findings showed 99% sensitivity and 80% specificity. Positive predictive value 99% and negative predictive value 80% and accuracy was 98%. Conclusion: Color Doppler ultrasonography is cost-effective, efficient, safe, and non-invasive method to diagnose the deep venous thrombosis of acute nature.

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Role of B-color and Resolution Sonography Presets for the Diagnosis of Lower Extremity Deep Vein Thrombosis

Cited by 2 publications

References 30 publications

Systematic optimization of ultrasound grayscale imaging presets and its application in abdominal scanning

Systematic optimization of ultrasound grayscale imaging presets and its application in abdominal scanning

Diagnostic Accuracy of Color Doppler Ultrasonography among Patients Having Deep Vein Thrombosis by Taking Venography as Gold Standard

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