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Ultrasonography

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https://www.readbyqxmd.com/read/28633198/factors-related-to-the-efficacy-of-radiofrequency-ablation-for-benign-thyroid-nodules
#1
Jung Hwan Baek
No abstract text is available yet for this article.
May 17, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28618770/clinical-significance-of-renal-cortical-thickness-in-patients-with-chronic-kidney-disease
#2
Mehmet Korkmaz, Bekir Aras, Serkan Güneyli, Mümtaz Yılmaz
Purpose: The aim of this study was to evaluate the correlations between laboratory findings and ultrasonographic measurements of renal length and cortical thickness in patients receiving follow-up for chronic kidney disease (CKD). Methods: CKD patients with a low glomerular filtration rate who did not require renal replacement therapy were included in this prospective study. Patients were followed up with laboratory assays at bimonthly intervals and with ultrasonography performed twice a year...
May 6, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28607323/ultrasound-guided-drug-delivery-in-cancer
#3
Sayan Mullick Chowdhury, Taehwa Lee, Jürgen K Willmann
Recent advancements in ultrasound and microbubble (USMB) mediated drug delivery technology has shown that this approach can improve spatially confined delivery of drugs and genes to target tissues while reducing systemic dose and toxicity. The mechanism behind enhanced delivery of therapeutics is sonoporation, the formation of openings in the vasculature, induced by ultrasound-triggered oscillations and destruction of microbubbles. In this review, progress and challenges of USMB mediated drug delivery are summarized, with special focus on cancer therapy...
May 1, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28607322/assessment-of-the-mechanical-properties-of-the-muscle-tendon-unit-by-supersonic-shear-wave-imaging-elastography-a-review
#4
Kelly Mônica Marinho E Lima, José Francisco Silva Costa Júnior, Wagner Coelho de Albuquerque Pereira, Liliam Fernandes de Oliveira
This review aimed to describe the state of the art in muscle-tendon unit (MTU) assessment by supersonic shear wave imaging (SSI) elastography in states of muscle contraction and stretching, during aging, and in response to injury and therapeutic interventions. A consensus exists that MTU elasticity increases during passive stretching or contraction, and decreases after static stretching, electrostimulation, massage, and dry needling. There is currently no agreement regarding changes in the MTU due to aging and injury...
April 15, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28618771/logistic-lasso-regression-for-the-diagnosis-of-breast-cancer-using-clinical-demographic-data-and-the-bi-rads-lexicon-for-ultrasonography
#5
Sun Mi Kim, Yongdai Kim, Kuhwan Jeong, Heeyeong Jeong, Jiyoung Kim
Purpose: The aim of this study was to compare the performance of image analysis for predicting breast cancer using two distinct regression models and to evaluate the usefulness of incorporating clinical and demographic data (CDD) into the image analysis in order to improve the diagnosis of breast cancer. Methods: This study included 139 solid masses from 139 patients who underwent a ultrasonography-guided core biopsy and had available CDD between June 2009 and April 2010...
April 14, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28513128/clinical-features-of-recently-diagnosed-papillary-thyroid-carcinoma-in-elderly-patients-aged-65-and-older-based-on-10-years-of-sonographic-experience-at-a-single-institution-in-korea
#6
Eun Sil Kim, Younghen Lee, Hyungsuk Seo, Gil Soo Son, Soon Young Kwon, Young-Sik Kim, Ji-A Seo, Nan Hee Kim, Sang-Il Suh, Inseon Ryoo, Sung-Hye You
Purpose: The aim of this study was to assess the characteristics of papillary thyroid carcinoma (PTC) in patients aged 65 and older in order to predict postoperative recurrence based on the results of ultrasonographic surveillance. Methods: Among 1,494 patients (200 male and 1,294 female; mean age, 46.6±11.3 years) who underwent surgery for thyroid cancer at our institution between 2006 and 2015, we retrospectively enrolled 150 PTC patients (29 male and 121 female; mean age, 69...
April 13, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494523/korean-thyroid-imaging-reporting-and-data-system-features-of-follicular-thyroid-adenoma-and-carcinoma-a-single-center-study
#7
Jung Won Park, Dong Wook Kim, Donghyun Kim, Jin Wook Baek, Yoo Jin Lee, Hye Jin Baek
Purpose: This study aimed to assess the diagnostic efficacy of Korean Thyroid Imaging Reporting and Data System (K-TIRADS) features for distinguishing follicular thyroid adenoma (FTA) from follicular thyroid carcinoma (FTC). Methods: From January 2013 to July 2016, 46 follicular neoplasms in 45 patients who underwent preoperative thyroid ultrasonography (US) and thyroid surgery were included. The US features of each thyroid nodule were retrospectively evaluated by a single radiologist using a picture archiving and communication system...
April 13, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28607324/updated-guidelines-on-the-preoperative-staging-of-thyroid-cancer
#8
Hye Jung Kim
Recent studies have provided prognostic information and recommendations for staging thyroid cancers that have changed the staging and management guidelines for the disease. Consequently, minimal extrathyroidal extension (ETE) was removed from the T3 stage classification in the eighth edition of the TNM staging system by the American Joint Committee on Cancer. New T categories have been subsequently added, including T3a, defined as a tumor >4 cm in its greatest dimension, limited to the thyroid gland, and T3b, defined as a tumor of any size with gross ETE invading only the strap muscles...
April 9, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494526/ultrasonographic-evaluation-of-women-with-pathologic-nipple-discharge
#9
Jung Hyun Yoon, Haesung Yoon, Eun-Kyung Kim, Hee Jung Moon, Youngjean Vivian Park, Min Jung Kim
Nipple discharge is a common symptom that is alarming for the patient since it can be a presenting symptom of breast cancer. Breast imaging is used to examine women with pathologic nipple discharge in order to detect any lesions that may be present and to assist in the differential diagnosis. The modalities of breast imaging include mammography, breast ultrasonography (US), and magnetic resonance imaging. Breast US is currently considered to be useful for the visualization of ductal structures and intraductal lesions that cause nipple discharge...
April 9, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28535605/ultrasonography-of-the-ankle-joint
#10
Jung Won Park, Sun Joo Lee, Hye Jung Choo, Sung Kwan Kim, Heui-Chul Gwak, Sung-Moon Lee
Ankle disorders are a relatively common pathological condition, and ankle injuries account for Epub ahead of print approximately 14% of sports-related orthopedic emergency visits. Various imaging modalities can be used to make a diagnosis in cases of ankle pain; however, ultrasound (US) has several benefits for the evaluation of ankle pain, especially in the tendons, ligaments, and nerves of the ankle. The purpose of this article is to review the common causes of ankle pathology, with particular reference to US features...
April 5, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28513127/shear-wave-elastography-in-breast-ultrasonography-the-state-of-the-art
#11
Ji Hyun Youk, Hye Mi Gweon, Eun Ju Son
Shear-wave elastography (SWE) is a recently developed ultrasound technique that can visualize and measure tissue elasticity. In breast ultrasonography, SWE has been shown to be useful for differentiating benign breast lesions from malignant breast lesions, and it has been suggested that SWE enhances the diagnostic performance of ultrasonography, potentially improving the specificity of conventional ultrasonography using the Breast Imaging Reporting and Data System criteria. More recently, not only has SWE been proven useful for the diagnosis of breast cancer, but has also been shown to provide valuable information that can be used as a preoperative predictor of the prognosis or response to chemotherapy...
April 5, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494524/ultrasonographic-findings-of-posterior-interosseous-nerve-syndrome
#12
Youdong Kim, Doo Hoe Ha, Sang Min Lee
Purpose: The purpose of this study was to evaluate the ultrasonographic findings associated with posterior interosseous nerve (PIN) syndrome. Methods: Approval from the Institutional Review Board was obtained. A retrospective review of 908 sonograms of the upper extremity from January 2001 to October 2010 revealed 10 sonograms suspicious for a PIN abnormality (7 male and 3 female patients; mean age of 51.8±13.1 years; age range, 32 to 79 years). The ultrasonographic findings of PIN syndrome, including changes in the PIN and adjacent secondary changes, were evaluated...
April 5, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494525/ultrasonography-of-pediatric-urogenital-emergencies-review-of-classic-and-new-techniques
#13
Masahiro Kitami
Urogenital emergencies are fairly common in the pediatric population, and a timely and correct diagnosis is necessary to avoid possible future infertility. In this field, ultrasonography is essential, as it has the advantages of being radiation-free and readily accessible. In particular, a high-frequency transducer allows precise evaluation of the morphology and vascularity of the scrotum, which is on the surface of the body. Beyond conventional techniques, new advanced imaging techniques have been developed, including elastography and contrast-enhanced ultrasonography...
March 30, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28301922/current-status-of-core-needle-biopsy-of-the-thyroid
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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