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Ultrasonography

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https://www.readbyqxmd.com/read/28372341/ultrasonography-of-the-pediatric-hip-and-spine
#1
Yeo Ryang Kang, Joonbum Koo
Ultrasonography (US) is a useful screening method for the diagnosis of developmental dysplasia of the hip (DDH) and congenital spinal anomalies in infants. In addition, US is a useful, noninvasive imaging modality for the diagnosis of transient synovitis in children. The early detection of DDH leads to a better prognosis without surgical intervention. Moreover, spinal US allows the detection of congenital malformations and can also demonstrate normal anatomy and normal variants that may resemble disorders. Therefore, radiologists should be familiar with the sonographic anatomy of the normal infant hip, scanning and measurement techniques for DDH, the US features of transient synovitis in children, spinal US techniques, and the US features of normal anatomical structures, normal variants, and congenital spinal anomalies...
February 22, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28322033/prenatal-diagnosis-of-aberrant-right-subclavian-artery-in-an-unselected-population
#2
Mi Jin Song, Byoung Hee Han, Young-Hwa Kim, So Young Yoon, Yoo Mi Lee, Hye Su Jeon, Bo Kyung Park
Purpose: The purpose of this study was to determine the frequency of aberrant right subclavian artery (ARSA) among unselected fetuses and to evaluate its association with chromosomal abnormalities and other congenital anomalies. Methods: In all, 7,547 fetuses (gestational age, 20 to 34 weeks) were examined using routine antenatal sonography at our institution between April 2014 and September 2015. The right subclavian artery was assessed using grayscale and color Doppler ultrasonography in the transverse 3-vessel and tracheal view, and confirmed in the coronal plane...
February 20, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28322034/medical-auditing-of-whole-breast-screening-ultrasonography
#3
Min Jung Kim
Since breast ultrasonography (US) has been used as an adjunctive screening modality in women with dense breasts, the need has arisen to evaluate and monitor its possible harm and benefits in comparison with other screening modalities such as mammography. Recently, the fifth edition of the Breast Imaging Reporting and Data System published by the American College of Radiology has suggested auditing methods for screening breast US. However, the method proposed therein is slightly different from how diagnostic performance was calculated in previous studies on screening breast US...
February 16, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28290184/ultrasound-contrast-enhanced-study-as-an-imaging-biomarker-for-anti-cancer-drug-treatment-preliminary-study-with-paclitaxel-in-a-xenograft-mouse-tumor-model-secondary-publication
#4
Hak Jong Lee, Sung Il Hwang, Jonghoe Byun, Hoon Young Kong, Hyun Sook Jung, Mira Kang
Purpose: The purpose of this study was to assess tumor angiogenesis using contrast-enhanced ultrasonography (CEUS) of human prostate cancer cells (PC3) that were implanted in mice before and after paclitaxel injection. Methods: Twelve mice were injected with human prostate cancer cells (PC3). The mice were grouped into two groups; one was the paclitaxel-treated group (n=6) and the other was the control group (n=6). Before administering paclitaxel into the peritoneal cavity, baseline CEUS was performed after the administration of 500 μL (1×108 microbubbles) of contrast agent...
February 14, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28290183/synthesis-of-ultrasound-contrast-agents-characteristics-and-size-distribution-analysis-secondary-publication
#5
Hak Jong Lee, Tae-Jong Yoon, Young Il Yoon
Purpose: The purpose of this study was to establish a method for ultrasound (US) contrast agent synthesis and to evaluate the characteristics of the synthesized US contrast agent. Methods: A US contrast agent, composed of liposome and sulfur hexafluoride (SF6), was synthesized by dissolving 21 μmol 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine (DPPC, C40H80NO8P), 9 μmol cholesterol, and 1.9 μmol of dihexadecylphosphate (DCP, [CH3(CH2)15O]2P(O)OH) in chloroform...
February 14, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28292005/current-status-of-musculoskeletal-application-of-shear-wave-elastography
#6
JeongAh Ryu, Woo Kyoung Jeong
Ultrasonography (US) is a very powerful diagnostic modality for the musculoskeletal system due to the ability to perform real-time dynamic high-resolution examinations with the Doppler technique. In addition to acquiring morphologic data, we can now obtain biomechanical information by quantifying the elasticity of the musculoskeletal structures with US elastography. The earlier diagnosis of degeneration and the ability to perform follow-up evaluations of healing and the effects of treatment are possible. US elastography enables a transition from US-based inspection to US-based palpation in order to diagnose the characteristics of tissue...
February 4, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28269978/differential-diagnosis-between-intraductal-papillary-mucinous-neoplasm-with-an-associated-invasive-carcinoma-and-pancreatic-ductal-adenocarcinoma-on-ultrasonography-the-utility-of-echo-intensity-and-contrast-enhancement
#7
Masato Saito, Naoki Hirokawa, Yoko Usami, Masanori Someya, Koh-Ichi Sakata
Purpose: The aim of this study was to investigate the utility of echo intensity and contrast enhancement in the differential diagnosis between intraductal papillary mucinous neoplasm with an associated invasive carcinoma (IPMN-IC) and pancreatic ductal adenocarcinoma (PDAC) on ultrasonography. Methods: This study included eight and 33 patients who had pathologically confirmed IPMN-IC and PDAC, respectively, and were enrolled for a comparative analysis of the sonographic features of the tumors...
February 4, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28301922/current-status-of-core-needle-biopsy-of-the-thyroid
#8
Jung Hwan Baek
No abstract text is available yet for this article.
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28260355/ultrasonography-of-the-lower-extremity-veins-anatomy-and-basic-approach
#9
REVIEW
Dong-Kyu Lee, Kyung-Sik Ahn, Chang Ho Kang, Sung Bum Cho
Ultrasonography is an imaging modality widely used to evaluate venous diseases of the lower extremities. It is important to understand the normal venous anatomy of the lower extremities, which has deep, superficial, and perforating venous components, in order to determine the pathophysiology of venous disease. This review provides a basic description of the anatomy of the lower extremity veins and useful techniques for approaching each vein via ultrasonography.
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28222584/ultrasonographic-imaging-of-papillary-thyroid-carcinoma-variants
#10
REVIEW
Jung Hee Shin
Ultrasonography (US) is routinely used to evaluate thyroid nodules. The US features of papillary thyroid carcinoma (PTC), the most common thyroid malignancy, include hypoechogenicity, spiculated/microlobulated margins, microcalcifications, and a nonparallel orientation. However, many PTC variants have been identified, some of which differ from the classic type of PTC in terms of biological behavior and clinical outcomes. This review describes the US features and clinical implications of the variants of PTC...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28219004/doppler-ultrasonography-of-the-lower-extremity-arteries-anatomy-and-scanning-guidelines
#11
Ji Young Hwang
Doppler ultrasonography of the lower extremity arteries is a valuable technique, although it is less frequently indicated for peripheral arterial disease than for deep vein thrombosis or varicose veins. Ultrasonography can diagnose stenosis through the direct visualization of plaques and through the analysis of the Doppler waveforms in stenotic and poststenotic arteries. To perform Doppler ultrasonography of the lower extremity arteries, the operator should be familiar with the arterial anatomy of the lower extremities, basic scanning techniques, and the parameters used in color and pulsed-wave Doppler ultrasonography...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28145109/current-status-of-high-intensity-focused-ultrasound-for-the-management-of-uterine-adenomyosis
#12
REVIEW
Vincent Y T Cheung
While high-intensity focused ultrasound has been used for some time in the management of uterine fibroids, its effectiveness and safety in managing adenomyosis is less well established. A literature review was performed of all eligible reports using this modality as a treatment for adenomyosis. Relevant publications were obtained from the PubMed electronic database from inception through March 2016. Eleven articles, including information from 1,150 treatments and follow-up data from 990 patients, were reviewed...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28145108/detection-of-liver-metastases-in-cancer-patients-with-geographic-fatty-infiltration-of-the-liver-the-added-value-of-contrast-enhanced-sonography
#13
Tommaso Vincenzo Bartolotta, Adele Taibbi, Dario Picone, Andrea Anastasi, Massimo Midiri, Roberto Lagalla
PURPOSE: The aim of this study is to assess the role of contrast-enhanced ultrasonography (CEUS) in the detection of liver metastases in cancer patients with geographic liver fatty deposition on greyscale ultrasonography (US). METHODS: Thirty-seven consecutive cancer patients (24 women and 13 men; age, 33 to 80 years; mean, 58.1 years) with geographic liver fatty deposition, but without any detectable focal liver lesion on greyscale US, underwent sulphur hexafluoride-enhanced US...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/27956732/current-role-of-transient-elastography-in-the-management-of-chronic-hepatitis-b-patients
#14
REVIEW
Jung Hwan Yu, Jung Il Lee
Liver fibrosis is an important prognostic factor for chronic hepatitis B (CHB), and accurate evaluation of the stage of liver fibrosis is crucial in establishing management strategies. While liver biopsy is still considered the gold standard for staging liver fibrosis or cirrhosis, transient elastography (TE), a noninvasive means of assessing liver fibrosis, has come to play an increasing role in this process. After extensive validation, TE is now regarded as a reliable surrogate maker for grading the severity of liver fibrosis in CHB patients...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/27776401/assessing-the-blood-pressure-waveform-of-the-carotid-artery-using-an-ultrasound-image-processing-method
#15
Effat Soleimani, Manijhe Mokhtari-Dizaji, Nasser Fatouraee, Hazhir Saberi
PURPOSE: The aim of this study was to introduce and implement a noninvasive method to derive the carotid artery pressure waveform directly by processing diagnostic sonograms of the carotid artery. METHODS: Ultrasound image sequences of 20 healthy male subjects (age, 36±9 years) were recorded during three cardiac cycles. The internal diameter and blood velocity waveforms were extracted from consecutive sonograms over the cardiac cycles by using custom analysis programs written in MATLAB...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/27764911/ultrasonographic-measurement-of-the-axillary-recess-thickness-in-an-asymptomatic-shoulder
#16
Gi-Young Park, Jin Hoon Lee, Dae Gil Kwon
PURPOSE: The purpose of this study was to measure the axillary recess (AR) thickness in an asymptomatic shoulder by using ultrasonography (US) and to analyze the factors affecting it. METHODS: We recruited 141 patients (52 males; 89 females; age, 57.7±9.9 years) with unilateral shoulder pain and performed US on the unaffected shoulder. Two physiatrists measured the AR thickness of the unaffected shoulder independently. All patients were examined in an upright sitting position with 90° shoulder abduction...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/27764910/magnetic-resonance-imaging-and-pathological-characteristics-of-pure-mucinous-carcinoma-in-the-breast-according-to-echogenicity-on-ultrasonography
#17
Young Gyung Shin, Eun-Kyung Kim, Min Jung Kim, Jung Hyun Yoon, Hee Jung Moon
PURPOSE: The aim of this study was to explore the clinical and pathological characteristics of pure mucinous breast carcinoma (PMBC) according to internal echogenicity on ultrasonography (US). METHODS: Thirty-three patients with PMBC diagnosed at surgery were included in this study. Cases of PMBC were classified according to internal echogenicity on US. The imaging features on magnetic resonance (MR) imaging and clinicohistopathological characteristics were compared between the hypoechogenic and the isoechogenic to hyperechogenic groups...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/27764908/which-supplementary-imaging-modality-should-be-used-for-breast-ultrasonography-comparison-of-the-diagnostic-performance-of-elastography-and-computer-aided-diagnosis
#18
Si Eun Lee, Ji Eun Moon, Yun Ho Rho, Eun-Kyung Kim, Jung Hyun Yoon
PURPOSE: The aim of this study was to evaluate and compare the diagnostic performance of grayscale ultrasonography (US), US elastography, and US computer-aided diagnosis (US-CAD) in the differential diagnosis of breast masses. METHODS: A total of 193 breast masses in 175 consecutive women (mean age, 46.4 years) from June to August 2015 were included. US and elastography images were obtained and recorded. A US-CAD system was applied to the grayscale sonograms, which were automatically analyzed and visualized in order to generate a final assessment...
April 2017: Ultrasonography
https://www.readbyqxmd.com/read/28273696/comparison-of-the-severity-of-lower-extremity-arterial-disease-in-smokers-and-patients-with-diabetes-using-a-novel-duplex-doppler-scoring-system
#19
Rudresh Hiremath, Goutham Gowda, Jebin Ibrahim, Harish T Reddy, Haritha Chodiboina, Rushit Shah
Purpose: The aim of this study was to validate the diagnostic feasibility of a novel scoring system of peripheral arterial disease (PAD) in smokers and patients with diabetes depending on duplex Doppler sonographic features. Methods: Patients presenting with the symptomatology of PAD were divided into three groups: diabetes only, smoking only, and smokers with diabetes. The patients were clinically examined, a clinical severity score was obtained, and the subjects were categorized into the three extrapolated categories of mild, moderate, and severe...
January 25, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28228009/emergency-ultrasonography-of-the-gastrointestinal-tract-of-children
#20
Jae-Yeon Hwang
Ultrasonography (US) is widely used to evaluate most body parts in pediatric patients because it is simple, noninvasive, easy to use, and applicable in a wide variety of clinical situations. US is the modality of choice for the initial evaluation of acute abdominal pain in pediatric patients because of their small body habitus and the presence of less fat tissue in the abdominal wall and peritoneal cavity. The most important factor in performing pediatric emergency US is the graded compression technique and selection of the proper transducer...
January 25, 2017: Ultrasonography
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