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Ultrasonography

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https://www.readbyqxmd.com/read/29232463/ultrasonography-current-status-challenges-and-future-directions
#1
Byung Ihn Choi
No abstract text is available yet for this article.
November 23, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29325241/typical-lesions-in-the-fetal-nervous-system-correlations-between-fetal-magnetic-resonance-imaging-and-obstetric-ultrasonography-findings
#2
Heron Werner, Taisa Davaus Gasparetto, Pedro Daltro, Emerson Leandro Gasparetto, Edward Araujo Júnior
Central nervous system (CNS) malformations play a role in all fetal malformations. Ultrasonography (US) is the best screening method for identifying fetal CNS malformations. A good echographic study depends on several factors, such as positioning, fetal mobility and growth, the volume of amniotic fluid, the position of the placenta, the maternal wall, the quality of the apparatus, and the sonographer's experience. Although US is the modality of choice for routine prenatal follow-up because of its low cost, wide availability, safety, good sensitivity, and real-time capability, magnetic resonance imaging (MRI) is promising for the morphological evaluation of fetuses that otherwise would not be appropriately evaluated using US...
October 21, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29228764/ultrasonographic-quantification-of-pleural-effusion-comparison-of-four-formulae
#3
Bolanle Olubunmi Ibitoye, Bukunmi Michael Idowu, Akinwumi Babatunde Ogunrombi, Babalola Ishmael Afolabi
Purpose: The purpose of this study was to evaluate the correlations of ultrasonographically estimated volumes of pleural fluid with the actual effusion volume in order to determine the most reliable formula. Methods: In 32 consecutive patients with clinically diagnosed pleural effusion, an ultrasound estimation was made of the volume of effusion using four different formulae, including two in the erect position and two in the supine position. Closed-tube thoracostomy drainage using a 28-Fr chest tube was performed...
October 18, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29169230/ultrasonographic-features-of-pure-ductal-carcinoma-italic-in-situ-italic-of-the-breast-correlations-with-pathologic-features-and-biological-markers
#4
Hwajin Cha, Yun-Woo Chang, Eun Ji Lee, Ji Young Hwang, Hyun Joo Kim, Eun Hye Lee, Jung Kyu Ryu
Purpose: The purpose of this study was to evaluate the ultrasonographic features of pure ductal carcinoma in situ (DCIS) of the breast and to evaluate the correlations of ultrasonographic features with pathologic and biological features. Methods: A total of 141 lesions in 138 women with pure DCIS who underwent preoperative breast ultrasonography were retrospectively reviewed. Ultrasonographic features were analyzed using the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) ultrasonography lexicon and the diagnostic criteria of the Japan Society of Ultrasonics in Medicine...
October 13, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29166762/a-portable-high-intensity-focused-ultrasound-system-for-the-pancreas-with-3d-electronic-steering-a-preclinical-study-in-a-swine-model
#5
Won Chang, Jae Young Lee, Jae Hwan Lee, Jae Seok Bae, Yeon Jin Cho, Kook Jin Kang, Keonho Son, Yul Ri Chung, Kyoung Bun Lee, Joon Koo Han
Purpose: The aim of this animal study was to evaluate the safety and feasibility of a portable, ultrasonography-guided, high-intensity focused ultrasound (USg-HIFU) system to treat the pancreas. Methods: Eight swine were included. Using a portable HIFU device (ALPIUS 900, Alpinion Medical Systems), ablations were performed on the pancreas in vivo. Different acoustic intensities were applied (1.7 kW/cm2 or 1.5 kW/cm2 , n=2 [group A for a pilot study]; 1.5 kW/ cm2 , n=3 [group B]; and 1...
October 13, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29207852/the-efficacy-and-safety-of-high-intensity-focused-ultrasound-ablation-of-benign-thyroid-nodules
#6
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...
October 10, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28736429/ultrasound-guided-genitourinary-interventions-principles-and-techniques
#7
REVIEW
Byung Kwan Park
Ultrasound (US) is often used to guide various interventional procedures in the genitourinary (GU) tract because it can provide real-time imaging without any radiation hazard. Moreover, US can clearly visualize the pathway of an aspiration or biopsy needle to ensure the safety of the intervention. US guidance also helps clinicians to access lesions via the transabdominal, transhepatic, transvaginal, transrectal, and transperineal routes. Hence, US-guided procedures are useful for radiologists who wish to perform GU interventions...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28658733/thyroid-disease-in-children-and-adolescents
#8
Hyun Sook Hong, Ji Ye Lee, Sun Hye Jeong
No abstract text is available yet for this article.
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28633198/factors-related-to-the-efficacy-of-radiofrequency-ablation-for-benign-thyroid-nodules
#9
Jung Hwan Baek
No abstract text is available yet for this article.
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28607324/updated-guidelines-on-the-preoperative-staging-of-thyroid-cancer
#10
REVIEW
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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28535605/ultrasonography-of-the-ankle-joint
#11
REVIEW
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 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. In addition, the importance of a dynamic evaluation and a stress test with US is emphasized...
October 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
#12
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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28513127/shear-wave-elastography-in-breast-ultrasonography-the-state-of-the-art
#13
REVIEW
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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494526/ultrasonographic-evaluation-of-women-with-pathologic-nipple-discharge
#14
REVIEW
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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28494524/ultrasonographic-findings-of-posterior-interosseous-nerve-syndrome
#15
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 patients' sonographic images of the upper extremity from January 2001 to October 2010 revealed 10 patients 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)...
October 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
#16
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...
October 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
#17
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 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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/28290183/synthesis-of-ultrasound-contrast-agents-characteristics-and-size-distribution-analysis-secondary-publication
#18
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...
October 2017: Ultrasonography
https://www.readbyqxmd.com/read/29113031/role-of-core-needle-biopsy-as-a-first-line-diagnostic-tool-for-thyroid-nodules-a-retrospective-cohort-study
#19
Min Ji Hong, Dong Gyu Na, Soo Jin Kim, Dae Sik Kim
Purpose: The purpose of this study was to evaluate the diagnostic efficacy of fine-needle aspiration (FNA), core needle biopsy (CNB), and combined FNA/CNB for the first-line diagnosis of thyroid nodules. Methods: A total of 782 consecutive nodules that underwent simultaneous FNA and CNB were analyzed in this study. We compared the rate of inconclusive results and the diagnostic values for malignancy among FNA, CNB, and combined FNA/CNB. Results: CNB showed a lower rate (10...
September 15, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29103250/dynamic-ultrasonography-of-the-shoulder
#20
Jina Park, Jee Won Chai, Dong Hyun Kim, Seung Woo Cha
Ultrasonography (US) is a useful diagnostic method that can be easily applied to identify the cause of shoulder pain. Its low cost, excellent diagnostic accuracy, and capability for dynamic evaluation are also advantages. To assess all possible causes of shoulder pain, it is better to follow a standardized protocol and to perform a comprehensive evaluation of the shoulder than to conduct a focused examination. Moreover, a proper dynamic study can enhance the diagnostic quality of US, especially when the pathology is not revealed by a static evaluation...
August 26, 2017: Ultrasonography
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