Risk Threshold Algorithm for Thyroid Nodule Management Demonstrates Increased Specificity and Diagnostic Accuracy as Compared With American College of Radiology Thyroid Imaging, Reporting and Data System; Society of Radiologists in Ultrasound; and American Thyroid Association Management Guidelines
We studied diagnostic performance of an algorithm guiding thyroid nodule management using a malignancy risk model as compared with extant management guidelines. Single-institution, retrospective study was performed with sequential cases from pathology registry from 2012 to 2015. Seventy-eight patients were enrolled, with benign and malignant groups defined by aspiration results. Risk Threshold Algorithm determined management based off of a logistic regression model and a risk threshold. American College of Radiology Thyroid Imaging, Reporting and Data System (ACR TI-RADS), Society of Radiologists in Ultrasound (SRU), and A...
Source: Ultrasound Quarterly - September 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Neonatal Head Ultrasound: A Review and Update—Part 2: The Term Neonate and Analysis of Brain Anomalies
This article will discuss key features of various intracranial pathologies of concern in term infants. It will also illustrate various congenital malformations. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - September 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Neonatal Head Ultrasound: A Review and Update—Part 1: Techniques and Evaluation of the Premature Neonate
This article will discuss gray scale and Doppler techniques and findings in normal head ultrasounds of premature neonates. It will discuss intracranial pathologies noted in such neonates and their neurodevelopmental outcome. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - September 1, 2019 Category: Radiology Tags: Review Article Source Type: research
Comments From the Editor
No abstract available (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - September 1, 2019 Category: Radiology Tags: Editorial Source Type: research
Multimodality Imaging of Congenital Variants in the Gallbladder: Pictorial Essay
Congenital variants of the gallbladder development are infrequent and sometimes represent an asymptomatic imaging finding. In this case series, we want to present multimodality imaging findings that permit the diagnosis. Ultrasound, multidetector computed tomography, and magnetic resonance images are included.
The proper recognition of these infrequent congenital benign entities avoids unnecessary complementary examinations and misdiagnosis. Although ultrasound represents the most commonly used initial diagnostic tool, the increased use of magnetic resonance imaging and the wide use of multidetector computed tomography ma...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Pictorial Essay Source Type: research
Hyperechoic Abdominal Fat: A Sentinel Sign of Inflammation
One of the most useful sonographic signs of acute abdominal inflammation is the identification of increased echogenicity of the surrounding fat. Hyperechoic fat results from vasodilation and edema extending from an adjacent source of infection or inflammation. These changes are mediated by such factors such as bradykinin, histamine, and various cytokines. The recognition of hyperechoic fat on sonography may be an important indicator of the primary source of pathology. In addition, it often reflects a more advanced degree of transmural pathology, such as “walled-off” perforation of a hollow viscus. This pictorial essay ...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Pictorial Essay Source Type: research
Difference in Detection Rate of Portal Venous Gas via Computed Tomography and Ultrasonography in Pediatric Patients
In conclusion, the detection rate of PVG was higher with US, compared with CT, although the timings of the examinations could have influenced this finding. Ultrasonography could be useful for PVG detection in pediatric patients because it can be performed repeatedly at the bedside without radiation exposure. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Ultrasound Assessment of Acute Kidney Injury
Ultrasound assessment of the kidneys in patients with renal impairment has been described in various ways in the critical care, nephrology, and radiology literature, resulting in a somewhat heterogeneous picture of the gray-scale and Doppler ultrasound manifestation of acute kidney injury (AKI). Given that ultrasound assessment can potentially identify reversible causes of AKI or identify underlying chronic kidney disease, it is important for radiologists to be aware of the common etiologies of AKI and the spectrum of ultrasound findings. We review the definition and etiologies of renal injury and introduce the ultrasound ...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Review Article Source Type: research
Ultrasound Elastography Evaluations in Patient Populations With Various Kidney Diseases
In this study, we aimed to investigate the relationship between elastography scores and renal functions and proteinuria levels in patient populations with various kidney diseases. Seventy-five diabetic nephropathy patients, 66 kidney transplant patients, and 45 glomerulonephritis patients were included in the study. The amount of proteinuria was measured according to the protein-to-creatinine ratio in spot urine samples. The estimated glomerular filtration rate (eGFR) was calculated according to the Modification of Diet in Renal Disease formula. Ultrasound elastography scores were measured in each patient group by a radiol...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Shear-Wave Elastography in the Characterization of Pleural Effusions
The aim of the study was to investigate the efficacy of shear-wave elastography (SWE) in the differentiation of transudative and exudative pleural effusions. This monocentric study comprised 60 cases (17 transudative, 43 exudative).Transthoracic SWE was performed in 60 cases for whom to use thoracentesis for the pleural fluid analysis was planned. The mean SWE values of each patient were recorded, and the correlation between the biochemical analysis results of pleural fluid after thoracentesis and SWE findings was evaluated. The effusion SWE values and biochemical analysis results were compared. Of the 60 patients who part...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Lung Ultrasonography in the Diagnosis of Pneumonia in Children—A Metaanalysis and a Review of Pediatric Lung Imaging
Conclusions
As a result of the analysis, a significant advantage of the ultrasound examination in comparison with the x-ray study was demonstrated. Lung ultrasound could be a safe diagnostic method for this reason. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Review Article Source Type: research
Measurement of Spleen Stiffness by Shear-Wave Elastography for Prediction of Splenomegaly Etiology
Conclusions
Distinguishing the causes of splenomegaly is important because the disorders require different management strategies. In diseases that cause splenomegaly, tissue content may change according to pathogenesis. Such changes in the spleen are mechanical properties that can be quantified by elastography. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
A Noninvasive Method—Shear-Wave Elastography Compared With Transient Elastography in Evaluation of Liver Fibrosis in Patients With Chronic Hepatitis B
The aim of our study was to investigate the efficiency and feasibility of shear-wave elastography (sound touch elastography [STE], sound touch quantification [STQ]) compared with transient elastography (FibroScan) assessment in noninvasively and quantitatively identifying the degree of liver fibrosis. A total of 158 patients with chronic hepatitis B were included, and all accepted STE, STQ, and FibroScan assessments. Young's modulus (kPa) of STE, STQ, and FibroScan were evaluated, and the diagnostic performance of the 3 techniques on liver fibrosis stage was compared. The final diagnosis was based on histological findings ...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Assessment of Subclinical Atherosclerosis in Vitamin D Deficiency
In this study, we aimed to discover the findings of early atherosclerosis in patients with VDD by measuring carotid intima-media thickness (CIMT) and epicardial fat thickness (EFT).
Materials and Methods
The study population includes 52 patients with VDD (n = 30 [57% female], mean ± SD age 54.28 ± 8.77 years, mean ± SD serum 25-hydroxyvitamin D (25 [OH] D) 11 ± 2.4 ng/mL) and 82 participants for control group (n = 52 [63.4% female], mean ± SD age 56.40 ± 7.90 years, mean ± SD serum (25 [OH] D) 53 ± 4.2 ng/mL) who have no cardiovascular disease. Carotid intima-media thickness was assessed by using ultrasonography...
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Original Research Source Type: research
Positioning Techniques to Improve the Ultrasound Evaluation of the Elbow
We introduce an ergonomic positioning for sonographic scanning of elbow joint where the patient is lying semisupine on the examination bed. This is in contrast with the conventional positioning where the patient is sitting on the edge of the bed or across the table on a chair. Our proposed positioning is more comfortable for both the patient and ultrasound practitioner. It also allows immediate ultrasound-guided injections with lesser risk regarding a vasovagal syncope of the patient. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - June 1, 2019 Category: Radiology Tags: Pictorial Essay Source Type: research
