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Ultrasonography

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https://www.readbyqxmd.com/read/29914233/acoustic-radiation-force-impulse-imaging-of-biopsy-proven-kikuchi-disease-initial-experiences-for-evaluating-feasibility-in-pediatric-patients
#1
Jeong-Min Lee, Jae-Yeon Hwang, Jihyun Bae, Mae Ran Kim, Yong-Woo Kim, Su Eun Park, Jeong A Yeom, Jieun Roh
Purpose: This study evaluated the feasibility of acoustic radiation force impulse (ARFI) elastography and characterized the sonographic features of lymph nodes (LNs) with Kikuchi disease in pediatric patients. Methods: Seventy-six cervical LN biopsies were performed for the diagnosis of cervical lymphadenopathy. ARFI imaging was performed, and the characteristic ultrasound features of the biopsied LNs and the contralateral LNs were analyzed. We also reviewed clinical and conventional ultrasonographic findings...
April 24, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29852543/advanced-ultrasound-for-prenatal-interventions
#2
Katika Nawapun, Nisarat Phithakwatchara, Suparat Jaingam, Sommai Viboonchart, Nadda Mongkolchat, Tuangsit Wataganara
Ultrasound is an integral part of prenatal interventions. Doppler studies and 3-dimensional ultrasound (3DUS) are frequently used to determine whether fetal surgery is required. The operator's experience remains crucial for reducing procedure-related morbidity. Real-time 3DUS (or 4DUS) can simultaneously display the needle tip in three orthogonal planes, providing reassurance that no fetal parts are in the path. In experienced hands, 4DUS guidance may not be more effective than B-mode, but its value for less-experienced operators remains to be determined...
July 2018: Ultrasonography
https://www.readbyqxmd.com/read/29794964/internal-shoulder-impingement-in-overhead-athletes-an-ultrasound-imaging-proposal
#3
Alfonso Tramontana, Giovanni Monteleone, Alessandra Tiloca, Juan Carlos Miangolarra Page
No abstract text is available yet for this article.
July 2018: Ultrasonography
https://www.readbyqxmd.com/read/29794963/musculoskeletal-ultrasound-athletic-injuries-of-the-lower-extremity
#4
Nathaniel B Meyer, Jon A Jacobson, Vivek Kalia, Sung Moon Kim
Athletic injuries of the lower extremities are commonly encountered in clinical practice. While some pathology can be diagnosed on physical exam, others are a clinical dilemma with nonspecific symptomatology. In these situations, ultrasound imaging can be utilized as an exceptional diagnostic tool, offering unique advantages over other imaging modalities. This article will review the imaging characteristics of commonly encountered athletic injuries of the lower extremity.
July 2018: Ultrasonography
https://www.readbyqxmd.com/read/29976038/fetal-weight-estimation-by-ultrasound-development-of-indian-population-based-models
#5
Sujitkumar Hiwale, Hemant Misra, Shrutin Ulman
Purpose: Existing ultrasound-based fetal weight estimation models have been shown to have high errors when used in the Indian population. Therefore, the primary objective of this study was to develop Indian population-based models for fetal weight estimation, and the secondary objective was to compare their performance against established models. Methods: Retrospectively collected data from 173 cases were used in this study. The inclusion criteria were a live singleton pregnancy and an interval from the ultrasound scan to delivery of ≤7 days...
April 14, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29719943/comparison-of-the-diagnostic-yield-of-various-systematic-randomized-prostate-biopsy-protocols-using-prostate-phantoms-made-of-devil-s-tongue-jelly
#6
Sung Il Hwang, Hak Jong Lee
Purpose: The purpose of this study was to compare the diagnostic yield of five systematic randomized protocols using 12-20 biopsy cores with variably-sized phantoms. Methods: A total of 100 prostate phantom models were produced by casting liquid devil's tongue jelly using silicone molds. Sets of 20 phantoms were created with the following volumes: 20 mL, 40 mL, 60 mL, 80 mL, and 100 mL. Three focal lesions were created by injecting 0.5 mL of warm agar solution stained with red, blue, and green ink into each phantom model...
April 6, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29427991/reliability-of-core-needle-biopsy-as-a-second-line-procedure-in-thyroid-nodules-with-an-indeterminate-fine-needle-aspiration-report-a-systematic-review-and-meta-analysis
#7
Pierpaolo Trimboli, Luca Giovanella
PURPOSE: This study was undertaken to summarize the published data and to provide more robust estimates regarding the issue of core needle biopsy (CNB) for discriminating thyroid nodules with indeterminate fine-needle aspiration (FNA) results. METHODS: The systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The sources comprised studies published through November 2017. Original articles that investigated CNB in indeterminate thyroid lesions were searched...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29207852/the-efficacy-and-safety-of-high-intensity-focused-ultrasound-ablation-of-benign-thyroid-nodules
#8
REVIEW
Brian H Lang, Arnold L H Wu
High-intensity focused ultrasound (HIFU) is a promising form of thermal ablation of benign thyroid nodules, but evidence supporting its use is scarce. The present review evaluated the efficacy and safety of single-session HIFU treatment of benign thyroid nodules. As reported in the literature, the extent of nodule shrinkage following treatment ranged from 48.8% to 68.8%. Like other forms of ablation, the shrinkage rate was greatest in the first 3-6 months, and the best responders were patients with small (≤10 mL) nodules...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29169231/evaluating-imaging-pathology-concordance-and-discordance-after-ultrasound-guided-breast-biopsy
#9
REVIEW
Vivian Youngjean Park, Eun-Kyung Kim, Hee Jung Moon, Jung Hyun Yoon, Min Jung Kim
Ultrasound (US)-guided breast biopsy has become the main method for diagnosing breast pathology, and it has a high diagnostic accuracy, approaching that of open surgical biopsy. However, methods for confirming adequate lesion retrieval after US-guided biopsy are relatively limited and false-negative results are unavoidable. Determining imaging-pathology concordance after US-guided biopsy is essential for validating the biopsy result and providing appropriate management. In this review article, we briefly present the results of US-guided breast biopsy; describe general aspects to consider when establishing imaging-pathology concordance; and review the various categories of imaging-pathology correlations and corresponding management strategies...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29145350/ultrasonographic-evaluation-of-complications-related-to-transfemoral-arterial-procedures
#10
Eun Ju Chun
The transfemoral arterial approach is used to gain access for angiography, percutaneous coronary interventions, or various endovascular therapies. To decrease the risk of procedure-related vascular complications, it is recommended to puncture the common femoral artery in its middle segment. However, due to inadequate access or anatomical variability, various complications, including hematoma, pseudoaneurysm, arteriovenous fistula, thrombosis, or dissection, can occur after transfemoral arterial interventions...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29137452/pathologic-basis-of-the-sonographic-differences-between-thyroid-cancer-and-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features
#11
Grace C H Yang, Karen O Fried
Ultrasonography is pivotal in triage thyroid biopsy in the era after the identification of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). This pictorial essay illustrates the pathologic basis of the sonographic features that distinguish NIFTP from thyroid cancers. In this study, we present the correlations of ultrasonography to ×1 histopathology to assess shape and margin characteristics. Markedly hypoechoic nodules correlate to microfollicular/solid nodules, while isoechoic/hyperechoic thyroid nodules correlate to normofollicular/macrofollicular nodules...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29032665/does-standoff-material-affect-acoustic-radiation-force-impulse-elastography-a-preclinical-study-of-a-modified-elastography-phantom
#12
Katharina Hollerieth, Bernhard Gaßmann, Stefan Wagenpfeil, Stephan Kemmner, Uwe Heemann, Konrad Friedrich Stock
PURPOSE: This study was conducted to determine the influence of standoff material on acoustic radiation force impulse (ARFI) measurements in an elasticity phantom by using two different probes. METHODS: Using ARFI elastography, 10 observers measured the shear wave velocity (SWV, m/sec) in different lesions of an elasticity phantom with a convex 4C1 probe and a linear 9L4 probe. The experimental setup was expanded by the use of an interposed piece of porcine muscle as standoff material...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29025210/up-to-date-doppler-techniques-for-breast-tumor-vascularity-superb-microvascular-imaging-and-contrast-enhanced-ultrasound
#13
REVIEW
Ah Young Park, Bo Kyoung Seo
Ultrasonographic Doppler techniques have improved greatly over the years, allowing more sophisticated evaluation of breast tumor vascularity. Superb microvascular imaging (SMI) and contrast-enhanced ultrasound (CEUS) with second-generation contrast agents are two representative up-to-date techniques. SMI is a sensitive Doppler technique that adopts an intelligent filter system to separate low-flow signals from artifacts. With the development of second-generation contrast agents, CEUS has also emerged as a useful Doppler technique for evaluating tumor microcirculation...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/28870061/morphological-alterations-of-the-tendon-and-pulley-on-ultrasound-after-intrasynovial-injection-of-betamethasone-for-trigger-digit
#14
Mitsuhiko Takahashi, Ryosuke Sato, Kenji Kondo, Koichi Sairyo
PURPOSE: The aim of this study was to elucidate whether intrasynovial corticosteroid injections for trigger digit reduced the volume of the tendon and pulley on high-resolution ultrasonography. METHODS: Twenty-three digits of 20 patients with trigger digit were included. Each affected finger was graded clinically according to the following classification: grade I for pre-triggering, grade II for active triggering, grade III for passive triggering, and grade IV for presence of contracture...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/28870060/sonographic-features-that-can-be-used-to-differentiate-between-small-triple-negative-breast-cancer-and-fibroadenoma
#15
Ga Young Yoon, Joo Hee Cha, Hak Hee Kim, Hee Jung Shin, Eun Young Chae, Woo Jung Choi
PURPOSE: Our study investigated whether any sonographic findings could be useful for differentiating between small triple-negative breast cancer (TNBC) and fibroadenoma. METHODS: This retrospective study was approved by our Institutional Review Board, which waived the requirement for patient consent. From January 2009 to December 2010, the sonographic features of 181 pathologically proven TNBC tumors and 172 fibroadenomas measuring less than or equal to 2 cm in the longest dimension were reviewed and analyzed according to the fifth edition of the Breast Imaging Reporting and Data System (BI-RADS) lexicon...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/28736427/ultrasonographic-features-of-the-normal-filum-terminale
#16
Myoungae Kwon, Bo-Kyung Je, Doran Hong, Byung Min Choi
PURPOSE: The filum terminale (FT) is a fibrous band that connects the conus medullaris to the posterior body of the coccyx. Considering the advances of ultrasonography (US) technology and improvements in the resolution of US images, we aimed to re-establish the US features of the normal FT in infants younger than 6 months of age. METHODS: We retrospectively reviewed 30 spinal US scans, stored as video clips. The internal structure of the FT and the marginal echogenicity of the FT were assessed, and transverse and longitudinal US were compared...
April 2018: Ultrasonography
https://www.readbyqxmd.com/read/29807403/the-impact-of-first-trimester-intrauterine-hematoma-on-adverse-perinatal-outcomes
#17
Alberto Borges Peixoto, Taciana Mara Rodrigues da Cunha Caldas, Caetano Galvão Petrini, Ana Cecília Palma Romero, Luciano Eliziário Borges Júnior, Wellington P Martins, Edward Araujo Júnior
Purpose: The aim of this study was to evaluate whether the presence of an intrauterine hematoma (IUH) on an early pregnancy ultrasound scan showing a live fetus was related to adverse perinatal outcomes. Methods: We performed a retrospective cohort study to evaluate pregnant women who underwent an ultrasound examination in early pregnancy, between 6 weeks 0 days and 10 weeks 6 days. We compared the perinatal outcomes between women with and without firsttrimester IUH using the Mann-Whitney and Fisher exact tests...
March 17, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29575850/ultrasonography-of-benign-vulvar-lesions
#18
Vincent Y T Cheung
With the increasing applications of ultrasonography in the field of dermatology, this imaging modality can be extended to identify and characterize common vulvar lesions, with a particular focus on their location, size, vascularity, and content. This pictorial essay provides an introduction to vulvar ultrasonography, including technical considerations, ultrasonographic anatomy, and the ultrasonographic appearances of some vulvar conditions.
February 13, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29580047/the-feasibility-of-shear-wave-elastography-for-diagnosing-superficial-benign-soft-tissue-masses
#19
Hyun Jung Yeoh, Tae-Yoon Kim, Jeong Ah Ryu
Purpose: The purpose of this study was to investigate the feasibility of shear wave ultrasound elastography for differentiating superficial benign soft tissue masses through a comparison of their shear moduli. Methods: We retrospectively analyzed 48 masses from 46 patients from February 2014 to May 2016. Surgical excision, fine-needle aspiration, and clinical findings were used for the differential diagnosis. The ultrasonographic examinations were conducted by a single musculoskeletal radiologist, and the ultrasonographic findings were reviewed by two other radiologists who were blinded to the final diagnosis...
January 19, 2018: Ultrasonography
https://www.readbyqxmd.com/read/29462847/use-of-the-ultrasound-based-total-malignancy-score-in-the-management-of-thyroid-nodules
#20
Giovanni Guido Pompili, Silvia Tresoldi, Anna Ravelli, Alessandra Primolevo, Giovanni Di Leo, Gianpaolo Carrafiello
Purpose: The purpose of this study was to validate the role of the total malignancy score (TMS) in identifying thyroid nodules suspicious for malignancy through the sum of their ultrasound features. Methods: The local ethical committee approved this prospective observational study. We examined 231 nodules in 231 consecutive patients (164 females and 67 males; age range, 20 to 87 years; median age, 59 years; interquartile range, 48 to 70 years) who underwent ultrasound followed by fine-needle aspiration cytology (FNAC)...
January 6, 2018: Ultrasonography
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