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Ultrasonography

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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
#1
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
#2
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/29169231/evaluating-imaging-pathology-concordance-and-discordance-after-ultrasound-guided-breast-biopsy
#3
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/29575850/ultrasonography-of-benign-vulvar-lesions
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/29232463/ultrasonography-current-status-challenges-and-future-directions
#7
Byung Ihn Choi
No abstract text is available yet for this article.
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/29061036/diagnosing-ectopic-pregnancy-in-the-emergency-setting
#8
Robert Lee, Carolyn Dupuis, Byron Chen, Andrew Smith, Young H Kim
Ectopic pregnancy is the implantation of a fertilized egg outside the uterine endometrial cavity. For women presenting to the emergency department with abdominal pain and/or vaginal bleeding, ectopic pregnancy is an important diagnostic consideration. The diagnosis is made based on laboratory values and ultrasound imaging findings. The ultrasound appearance of both normal early pregnancy and ectopic pregnancy are variable and often subtle, presenting diagnostic challenges for radiologists. This pictorial essay describes and illustrates the sonographic findings of ectopic pregnancy and reviews the differential diagnoses that can mimic ectopic pregnancy on ultrasound...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28934833/hemodynamic-analysis-of-radiation-induced-damage-in-common-carotid-arteries-by-using-color-doppler-ultrasonography
#9
Alireza Mohammadkarim, Manijhe Mokhtari-Dizaji, Ali Kazemian, Hazhir Saberi
PURPOSE: The aim of this study was to assess vascular changes and blood flow abnormalities in the common carotid arteries of patients with head and neck cancers after external radiotherapy, using color Doppler ultrasonography. METHODS: We studied 24 patients treated with external radiotherapy for various head and neck cancers. In order to study the acute effects of irradiation on common carotid blood flow and arterial diameter changes, color Doppler ultrasonography parameters such as peak systolic velocity, end diastolic velocity, mean velocity, systolic-to-diastolic velocity (S/D) ratio, pulsatility index (PI), resistive index (RI), and instantaneous diameter changes were evaluated before and after external radiotherapy...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28830058/contrast-enhanced-ultrasonography-of-the-liver-using-sonovue
#10
REVIEW
Giovanna Ferraioli, Maria Franca Meloni
This review focuses on the use of contrast-enhanced ultrasonography (CEUS) with SonoVue (Bracco Imaging) for the diagnosis of focal liver lesions (FLLs), guidance during ablative treatment, and follow-up of liver tumors. Multicenter trials have shown that the performance of CEUS for the characterization of FLLs is similar to that of contrast-enhanced computed tomography or contrast-enhanced magnetic resonance imaging. CEUS with SonoVue has been effectively used for guiding the percutaneous treatment of malignant liver tumors that are invisible or poorly visualized in traditional gray-scale ultrasonography...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28780784/comparison-between-3-dimensional-cranial-ultrasonography-and-conventional-2-dimensional-cranial-ultrasonography-in-neonates-impact-on-reinterpretation
#11
Yu Jin Kim, Young Hun Choi, Hyun Hae Cho, So Mi Lee, Ji Eun Park, Jung-Eun Cheon, Woo Sun Kim, In-One Kim
PURPOSE: The aim of this study was to evaluate impact of 3-dimensional cranial ultrasonography (3DUS) on reinterpretation of cranial ultrasonography images in neonates in comparison with 2-dimensional cranial ultrasonography (2DUS). METHODS: We retrospectively enrolled 50 young infants who simultaneously underwent both 2DUS and 3DUS scanning from February to March 2015. Two pediatric radiologists independently reviewed both scans for overall image quality on a 5-point scale...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28736428/penile-doppler-ultrasonography-revisited
#12
REVIEW
Dae Chul Jung, Sung Yoon Park, Joo Yong Lee
Penile Doppler ultrasonography is a high-performing, noninvasive or minimally-invasive imaging modality that allows the depiction of the normal anatomy and macroscopic pathologic changes in real time. Moreover, functional changes in penile blood flow, as seen in erectile dysfunction (ED), can be analyzed using color Doppler ultrasonography (CDUS). This review article describes the normal sonographic anatomy of the penis, the sonographic technique for evaluating ED, the normal phases of erection, and the various causes of ED...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28658734/ultrasonographic-features-differentiating-thyroglossal-duct-cysts-from-dermoid-cysts
#13
Hyoung In Choi, Young Hun Choi, Jung-Eun Cheon, Woo Sun Kim, In-One Kim
PURPOSE: The purpose of this study was to identify ultrasonographic features that can be used to differentiate between thyroglossal duct cysts (TGDCs) and dermoid cysts (DCs). METHODS: We searched surgical pathology reports completed between January 2004 and October 2015 and identified 66 patients with TGDCs or DCs who had undergone preoperative ultrasonography. The ultrasound images were reviewed by two radiologists who were blinded to the pathological diagnosis...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28641365/ultrasonography-guided-14-gauge-core-biopsy-of-the-breast-results-of-7-years-of-experience
#14
Inha Jung, Min Jung Kim, Hee Jung Moon, Jung Hyun Yoon, Eun-Kyung Kim
PURPOSE: This study assessed the outcomes of ultrasound (US)-guided core needle biopsies (CNBs) of breast lesions with at least 2 years of follow-up to determine the false-negative rate and to evaluate the diagnostic accuracy of CNB. METHODS: We retrospectively analyzed 13,254 consecutive US-guided 14-gauge CNBs for breast lesions. We excluded biopsies if non-malignant biopsy result was not confirmed by surgical excision or US-guided vacuum-assisted biopsy, or fewer than 2 years of follow-up data were available...
January 2018: 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
#15
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...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/28618770/clinical-significance-of-renal-cortical-thickness-in-patients-with-chronic-kidney-disease
#16
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: A total of 41 CKD patients (18 males and 23 females; mean age, 65.2 years; range, 42 to 85 years) 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...
January 2018: 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
#17
REVIEW
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...
January 2018: Ultrasonography
https://www.readbyqxmd.com/read/29458238/active-contour-configuration-model-for-estimating-the-posterior-ablative-margin-in-image-fusion-of-real-time-ultrasound-and-3d-ultrasound-or-magnetic-resonance-images-for-radiofrequency-ablation-an-experimental-study
#18
Junkyo Lee, Min Woo Lee, Dongil Choi, Dong Ik Cha, Sunyoung Lee, Tae Wook Kang, Jehoon Yang, Jaemoon Jo, Won-Chul Bang, Jongsik Kim, Dongkuk Shin
Purpose: The purpose of this study was to evaluate the accuracy of an active contour model for estimating the posterior ablative margin in images obtained by the fusion of real-time ultrasonography (US) and 3-dimensional (3D) US or magnetic resonance (MR) images of an experimental tumor model for radiofrequency ablation. Methods: Chickpeas (n=12) and bovine rump meat (n=12) were used as an experimental tumor model. Grayscale 3D US and T1-weighted MR images were pre-acquired for use as reference datasets...
December 21, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29382187/ultrasonography-of-acute-flank-pain-a-focus-on-renal-stones-and-acute-pyelonephritis
#19
Ki Choon Sim
Ultrasonography is a useful tool for the differential diagnosis of acute flank pain. Renal stones appear as a focal area of echogenicity with acoustic shadowing on ultrasonography. In acute pyelonephritis (APN), the kidneys may be enlarged and have a hypoechoic parenchyma with loss of the normal corticomedullary junction. However, clinical and laboratory correlations are essential for the diagnosis of renal stones and APN through imaging studies. This review describes the typical ultrasonography features of renal stones and APN...
November 26, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29361659/associations-between-bethesda-categories-and-tumor-characteristics-of-conventional-papillary-thyroid-carcinoma
#20
Vivian Youngjean Park, Eun-Kyung Kim, Jin Young Kwak, Jung Hyun Yoon, Hee Jung Moon
Purpose: The aim of this study was to investigate the associations of Bethesda categories III, V, and VI with the clinical and pathological features of thyroid nodules surgically confirmed as conventional papillary thyroid carcinomas (PTCs). Methods: We analyzed 1,990 consecutive patients diagnosed with conventional PTC at surgery with preoperative Bethesda categories III, V, or VI. We determined the odds ratio (ORs) of the clinical and pathological variables associated with categories III and V, using category VI as the reference...
November 22, 2017: Ultrasonography
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