Feeding Flow Velocity on Doppler Ultrasound Predicting the Outcome of Type II Endoleak following Endovascular Aneurysm Repair of Abdominal Aortic Aneurysm.

Background: The objective is to study the relation between the velocity of the arterial feeder and the progression of the postendovascular aneurysm repair aneurysm to find out the cut point velocity, which causes a significant increase in size of the aneurysm sac.

Methods: Retrospective study of patients with Type II endoleak followed up with the duplex ultrasound between January 2010 and June 2022. The sensitivity, specificity, and accuracy of the velocity, number of feeding artery, and flow pattern were studied.

Comparing Ultrasonography and Surface Landmark-Guided Lumbar Puncture in Patients with Obesity and Difficult Anatomy; a Randomized Controlled Trial.

Introduction: Previous studies have shown higher lumbar puncture (LP) success rates when using ultrasound guidance. This study aimed to compare the first-attempt success rate of ultrasound-guided LP with blind technique of needle insertion using the palpable spinal surface landmark in patients with obesity or a difficult anatomy.

Methods: This prospective randomized controlled study was performed at the emergency department of Ramathibodi Hospital, an academic tertiary university hospital, from August 2015 to July 2016.

Early postoperative duplex ultrasound findings of the hepatic artery in postoperative vascular complications from paediatric liver transplantation.

Purpose: To evaluate duplex US findings of the HA in all three postoperative vascular (HA, PV, HV and IVC) complications of paediatric LT for early detection and some helpful secondary signs to determine these vascular complications.

Materials And Methods: We collected data from 44 post-LT paediatric patients who underwent daily duplex US for seven consecutive days and three months after LT during January 2017-June 2020. Four duplex US parameters of the HA (extrahepatic PSV, intrahepatic PSV, RI and AT) were compared in patients with and without complications.

Diameter-reflux relationship of the saphenous vein in the C0-C3 patients of chronic venous disease.

Objective: To evaluate the relationship between the saphenous vein's diameter and reflux and determine the cut point of the saphenous vein's diameter that indicates lack of reflux.

Material And Methods: A retrospective cohort study conducted in 807 limbs underwent the venous ultrasound for 36 months. The saphenous vein's diameter in the reflux and non-reflux groups was evaluated.

Morphologic change in deep venous thrombosis in the lower extremity after therapeutic anticoagulation.

Background: To evaluate the anticoagulant treatment response in venous thrombi with different morphologies (size, shape, and echogenicity) by measuring the change in thrombus thickness.

Materials And Methods: This was a retrospective cohort study of 97 lower extremity DVT patients diagnosed by venous ultrasound between March 2014 and February 2018. The demographics, clinical risk factors, anticoagulant treatment, and ultrasound findings at the first diagnosis and 2-6 months after treatment were evaluated.

Lower-Extremity Venous Ultrasound in DVT-Unlikely Patients with Positive D-Dimer Test.

Rationale And Objectives: To review the clinical data, D-dimer level and the ultrasonographic findings from complete venous ultrasound of the lower extremity in deep venous thrombosis (DVT)-unlikely patients with abnormal D-dimer test were compared to DVT-likely patients to ascertain the appropriate ultrasound examination protocol for patients in this group.

Material And Methods: A retrospective cohort study was conducted of all patients who underwent a complete (whole leg) venous ultrasound in one 13-month period. The medical history, demographic, clinical risk factors, and ultrasonographic findings of the patients with high clinical probability for deep vein thrombosis (Wells score ≥2), along with patients with a low clinical probability of deep vein thrombosis (Wells score ≤1) but with a D-dimer level higher than the threshold (≥500 ng/ml FEU) were evaluated.

Duplex ultrasound findings and clinical classification of lower extremity chronic venous insufficiency in a Thai population.

Background: The objective of this study was to evaluate the association between the clinical classification of chronic venous insufficiency and duplex ultrasound findings.

Methods: A total of 1010 limbs with clinically suspected chronic venous insufficiency were stratified according to the Clinical, Etiology, Anatomy, and Pathophysiology (CEAP) classification and underwent duplex ultrasound evaluation consecutively between January 2012 and June 2015. Venous thrombosis, venous reflux, and anatomic distribution of the deep and superficial venous systems were investigated across the CEAP clinical classes.

Predicting Factors for Failure of Percutaneous Drainage of Postoperative Intra-Abdominal Collection.

Objective: To determine the predictive factors for failure of percutaneous drainage (PD) of postoperative intra-abdominal collection, to better select the patients who might benefit from PD.

Material And Method: From September 2011 to February 2013, the authors reviewed 42 patients with symptomatic postoperative intra-abdominal collection who had received PD at Ramathibodi Hospital. The PD was considered as failure when clinical sepsis persisted or subsequent surgery was needed.

Visibility and variability of pleural fissures on normal digital chest radiographs of 1,000 healthy adults.

Purpose: To investigate the visibility and variability of pleural fissures on digital chest radiographs.

Methods: Posteroanterior digital chest radiographs of 566 males and 434 females were retrospectively reviewed for the frequencies and/or appearances of various pleural fissures.

Results: The right only, left only and bilateral minor fissures were visible in 722 (72.