Radiology Research

11:44 EDT 26th June 2017 | BioPortfolio

Optical coherence tomography angiography-based capillary velocimetry.

Gap in Capillary Perfusion on Optical Coherence Tomography Angiography.

Author Response: Gap in Capillary Perfusion on Optical Coherence Tomography Angiography.

Pre-labor fetal cardiac function and its relationship with intrapartum fetal compromise and neonatal status at term.

To prospectively investigate the relationship between fetal cardiac function and Doppler parameters with intrapartum fetal compromise (IFC) in term appropriately grown fetuses prior to labour. Secondary outcomes were to correlate prenatal cardiac function with neonatal acid base status, intrapartum fetal heart rate abnormalities adverse neonatal outcomes.

Noninvasive measurement of wave speed of porcine cornea in ex vivo porcine eyes for various intraocular pressures.

The objective of this study was to extend an ultrasound surface wave elastography (USWE) technique for noninvasive measurement of ocular tissue elastic properties. In particular, we aim to establish the relationship between the wave speed of cornea and the intraocular pressure (IOP). Normal ranges of IOP are between 12 and 22mmHg. Ex vivo porcine eye balls were used in this research. The porcine e...

Ultrasound-sensitive nanoparticle aggregates for targeted drug delivery.

Here we describe injectable, ultrasound (US)-responsive, nanoparticle aggregates (NPAs) that disintegrate into slow-release, nanoscale, drug delivery systems, which can be targeted to selective sites by applying low-energy US locally. We show that, unlike microbubble based drug carriers which may suffer from stability problems, the properties of mechanical activated NPAs, composed of polymer nanop...

Computer tomography urography assisted real-time ultrasound-guided percutaneous nephrolithotomy on renal calculus.

This study aimed to assess the role of pre-designed route on computer tomography urography (CTU) in the ultrasound-guided percutaneous nephrolithotomy (PCNL) for renal calculus.From August 2013 to May 2016, a total of 100 patients diagnosed with complex renal calculus in our hospital were randomly divided into CTU group and control group (without CTU assistance). CTU was used to design a rational ...

Indocyanine Green Angiography: A Helpful Tool for Intraoperative Assessment of Upper Extremity Perfusion.

Assessment of tissue perfusion can be a challenge for the hand surgeon. Indocyanine green (ICG) angiography has been shown to be a valuable adjunct to physical examination and clinical judgment when there is a concern for tissue perfusion. The use of this technology has risen sharply in recent years in reconstructive surgery. Applications of ICG angiography have been developed throughout the field...

Gastro-intestinal Ultrasound: Much has long been known and proven!

Advanced technique for the treatment of chronic calculous pancreatitis using endoscopic ultrasound-guided pancreatic duct drainage.

Abdominal Ultrasound for Pediatric Blunt Trauma: FAST Is Not Always Better.

Ultrasonography of a ureteral and bladder fungal granuloma caused by Scedosporium apiospermum in a basset hound.

A 5-year-old, spayed female, Basset Hound was referred for evaluation of a urinary bladder mass. Ultrasonographic images revealed a large, inhomogeneous, hypoechoic mass associated with the dorsal wall of the neck of the urinary bladder and left ureter. Partial cystectomy and left ureteral reimplantation were performed. Histopathology showed a severe inflammatory mass lesion forming multiple granu...

Ultrasound-guided radial artery catheterisation increases the success rate among anaesthesiology residents: a randomised study.

The palpation technique is generally used for radial artery catheterisation, but is associated with a high rate of failure and complications. Dynamic needle tip positioning (DNTP) is a new ultrasound-guided technique. We aimed to compare the traditional palpation technique with DNTP performed by four anaesthesiology residents.

Possible type 1 diabetes risk prediction: Using ultrasound imaging to assess pancreas inflammation in the inducible autoimmune diabetes BBDR model.

Studies of human cadaveric pancreas specimens indicate that pancreas inflammation plays an important role in type 1 diabetes pathogenesis. Due to the inaccessibility of pancreas in living patients, imaging technology to visualize pancreas inflammation is much in need. In this study, we investigated the feasibility of utilizing ultrasound imaging to assess pancreas inflammation longitudinally in li...

ABC/2 Method Does not Accurately Predict Cerebral Arteriovenous Malformation Volume.

Stereotactic radiosurgery (SRS) is a treatment option for cerebral arteriovenous malformations (AVMs) to prevent intracranial hemorrhage. The decision to proceed with SRS is usually based on calculated nidal volume. Physicians commonly use the ABC/2 formula, based on digital subtraction angiography (DSA), when counseling patients for SRS.

How Radiologists Think: Understanding Fast and Slow Thought Processing and How It Can Improve Our Teaching.

Scholars have identified two distinct ways of thinking. This "Dual Process Theory" distinguishes a fast, nonanalytical way of thinking, called "System 1," and a slow, analytical way of thinking, referred to as "System 2." In radiology, we use both methods when interpreting and reporting images, and both should ideally be emphasized when educating our trainees. This review provides practical tips f...

Treatment of Major Depressive Disorder via Magnetic Resonance-Guided Focused Ultrasound Surgery.

The surgeon-performed ultrasound: a curriculum to improve residents' basic ultrasound knowledge.

Despite the development of ultrasound courses by the American College of Surgeons two decades ago, many residencies lack formal ultrasound training. The aim of this study was to assess the previous ultrasound experience of residents and the efficacy of a new ultrasound curriculum by comparing pre- and post-course tests.

OCT Angiography and Visible-Light OCT in Diabetic Retinopathy.

In recent years, advances in optical coherence tomography (OCT) techniques have increased our understanding of diabetic retinopathy, an important microvascular complication of diabetes. OCT angiography is a non-invasive method that visualizes the retinal vasculature by detecting motion contrast from flowing blood. Visible-light OCT shows promise as a novel technique for quantifying retinal hypoxia...

Localization of the trunk muscles using musculoskeletal ultrasound guidance for pedicle screw stimulation during spine surgery.

The precise placement of recording electrodes at the relevant myotome is mandatory while performing pedicle screw stimulation (PSS) during spine surgery; however, their placement at trunk muscles is challenging. This study aimed to determine whether ultrasound guidance is useful for trunk muscle localization for PSS during spine surgery. A retrospective clinical study was conducted from a prospect...

Improving Pediatric Breast Ultrasound Reporting and Recommendations.

Accuracy of Self-Reported Specialty and Practice Location Among Radiologists.

Implementing the SAVI SCOUT System in Community Radiology Practice.

SAVI SCOUT is a new localization system approved by the FDA to aid in the surgical excision of nonpalpable breast lesions. This article provides a practical overview of the technical details of SAVI SCOUT use and presents important clinical and operational factors for radiologists to consider before implementation of SAVI SCOUT in community practice.

Psychometric Analysis and Qualitative Review of an Outpatient Radiology-Specific Patient Satisfaction Survey: A Call for Collaboration in Validating a Survey Instrument.

The aim of this study was to perform a psychometric analysis of the constructs and reliability of an outpatient radiology-specific patient satisfaction survey and identify factors that drive patient experience so that radiology practices can improve the quality of their diagnostic imaging services.

Upper extremity non-contrast magnetic resonance venography (MRV) compared to contrast enhanced MRV and ultrasound.

To assess feasibility, image quality and measured venous caliber of non-contrast MRV (NC-MRV) of central and upper extremity veins, compared to contrast-enhanced MRV (CE-MRV) and ultrasound (US) in healthy volunteers.

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