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https://www.readbyqxmd.com/read/29317047/histogram-analysis-of-greyscale-sonograms-to-differentiate-between-the-subtypes-of-follicular-variant-of-papillary-thyroid-cancer
#1
M-R Kwon, J H Shin, S Y Hahn, Y L Oh, J Y Kwak, E Lee, Y Lim
AIM: To evaluate the diagnostic value of histogram analysis using ultrasound (US) to differentiate between the subtypes of follicular variant of papillary thyroid carcinoma (FVPTC). MATERIALS AND METHODS: The present study included 151 patients with surgically confirmed FVPTC diagnosed between January 2014 and May 2016. Their preoperative US features were reviewed retrospectively. Histogram parameters (mean, maximum, minimum, range, root mean square, skewness, kurtosis, energy, entropy, and correlation) were obtained for each nodule...
January 6, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29312744/pathway-and-application-value-of-exploration-of-the-pulmonary-artery-by-endobronchial-ultrasound
#2
Peng Li, Cen Wu, Wei Zheng, Li Zhao
Background: The current standard methods for detecting pulmonary artery diseases are pulmonary artery enhanced computed tomography (CT) scan and pulmonary arteriography. However, some patients cannot tolerate these procedures for various reasons. The present study aimed to investigate the feasibility and operation process of endobronchial ultrasound (EBUS) in exploring the pulmonary artery. Methods: Based on normal contrast-enhanced chest CT images, the sites and process for exploring the pulmonary arteries were established...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29282381/a-silent-asymptomatic-solid-pancreas-tumor-in-a-nonsmoking-athletic-female-pancreatic-ductal-adenocarcinoma
#3
Kyawzaw Lin, Aung Naing Lin, Sithu Lin, Thinzar Lin, Ying Xian Liu, Madhavi Reddy
A silent solid endocrine tumor of pancreas, intraductal adenocarcinoma of pancreas, is the fourth leading cancer-related death in the US. However, it is expected to become the third leading cause by 2030 owing to delayed diagnosis and slow progress in management. Chronic pancreatitis is at risk for pancreatic ductal adenocarcinoma (PDAC). PDAC is diagnostic with transabdominal sonogram, blood test such as carbohydrate antigen 19-9 (CA 19-9), and imaging. PDAC has a dismal prognosis. The survival rate in 5 years is barely 6%, while late detection rate is 80-85% with unresectable stage upon diagnosis...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29273893/intraoperative-doppler-sonogram-in-pediatric-liver-transplants-a-pictorial-review-of-intraoperative-and-early-postoperative-complications
#4
A Luana Stanescu, Shawn E Kamps, André A S Dick, Marguerite T Parisi, Grace S Phillips
A spectrum of vascular complications can be seen in pediatric liver transplant patients, including occlusion and hemodynamically significant narrowing of the vessels that provide inflow to or outflow from the graft. Intraoperative Doppler ultrasound (US) has the potential benefit of identifying vascular complications in pediatric liver transplant patients prior to abdominal closure. Importantly, intraoperative Doppler US can be used as a problem-solving tool in situations such as position-dependent kinking of the portal or hepatic veins, or in suspected vasospasm of the hepatic artery...
December 22, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29201763/role-of-clinical-biochemical-and-imaging-parameters-in-predicting-the-severity-of-acute-pancreatitis
#5
Dina Zerem, Omar Zerem, Enver Zerem
Aim: The assessment of the severity of acute pancreatitis (AP) is important for proper management of the disease and for its prognosis. The aim was to correlate clinical, biochemical, and imaging diagnostic parameters and evaluate their prognostic values in the early assessment of severity of AP. Materials and methods: We prospectively studied 128 consecutive patients with AP. The predictors were clinical, biochemical, and imaging diagnostic parameters. The outcome measure was the occurrence of complications...
January 2017: Euroasian Journal of Hepato-Gastroenterology
https://www.readbyqxmd.com/read/29193910/does-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-have-distinctive-features-on-sonography
#6
Tamar C Brandler, Joseph Yee, Fang Zhou, Margaret Cho, Joan Cangiarella, Xiao-Jun Wei, Melissa Yee-Chang, Wei Sun
BACKGROUND: The noninvasive encapsulated follicular variant of papillary carcinoma (nEFVPTC) has recently been reclassified to "noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)," removing this entity from the malignant category. This re-categorization has had major implications for clinical management. NIFTP has overlapping cytohistologic features with papillary thyroid carcinoma (PTC) and with follicular adenomas (FA), but sonographic data comparing NIFTP to PTC and FA is lacking...
November 29, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29185399/negative-predictive-value-of-ultrasound-in-predicting-tumor-free-margins-in-specimen-sonography
#7
Saira Naz, Saima Hafeez, Zainab Hussain, Kiran Hilal
OBJECTIVE: To evaluate the success of ultrasound in post-excision specimen visualization, and negative predictive value of ultrasound for estimation of tumor-free margins using histopathology as the gold standard. STUDY DESIGN: Cross-sectional analytical study. PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, Pakistan, from May 2010 till January 2013. METHODOLOGY: Sonography of all breast nodules was done before and after exicision by two female radiologists with at least five years clinical experience...
December 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29182056/lesion-segmentation-in-automated-3d-breast-ultrasound-volumetric-analysis
#8
Richa Agarwal, Oliver Diaz, Xavier Lladó, Albert Gubern-Mérida, Joan C Vilanova, Robert Martí
Mammography is the gold standard screening technique in breast cancer, but it has some limitations for women with dense breasts. In such cases, sonography is usually recommended as an additional imaging technique. A traditional sonogram produces a two-dimensional (2D) visualization of the breast and is highly operator dependent. Automated breast ultrasound (ABUS) has also been proposed to produce a full 3D scan of the breast automatically with reduced operator dependency, facilitating double reading and comparison with past exams...
November 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/29181530/neurodevelopmental-and-behavioral-outcomes-in-extremely-premature-neonates-with-ventriculomegaly-in-the-absence-of-periventricular-intraventricular-hemorrhage
#9
Athina Pappas, Ira Adams-Chapman, Seetha Shankaran, Scott A McDonald, Barbara J Stoll, Abbot R Laptook, Waldemar A Carlo, Krisa P Van Meurs, Susan R Hintz, Martha D Carlson, Jane E Brumbaugh, Michele C Walsh, Myra H Wyckoff, Abhik Das, Rosemary D Higgins
Importance: Studies of cranial ultrasonography and early childhood outcomes among cohorts of extremely preterm neonates have linked periventricular-intraventricular hemorrhage and cystic periventricular leukomalacia with adverse neurodevelopmental outcomes. However, the association between nonhemorrhagic ventriculomegaly and neurodevelopmental and behavioral outcomes is not fully understood. Objective: To characterize the outcomes of extremely preterm neonates younger than 27 weeks' gestational age who experienced nonhemorrhagic ventriculomegaly that was detected prior to 36 weeks' postmenstrual age...
November 27, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/29158999/recurrent-primary-suprahepatic-abscess-due-to-providencia-stuartii-a-rare-phenomenon
#10
Kyawzaw Lin, Aung Naing Lin, Sandar Linn, Madhavi Reddy, Anjali Bakshi
Gram-negative urease-producing bacilli, Providencia stuartii (P. stuartii), is reported in urinary tract infections, gastroenteritis, and bacteremia in humans but they rarely present with a hepatic abscess. We present a rare case of a recurrent suprahepatic cyst due to P. stuartii in a 45-year-old female, intravenous ( IV) heroin abuser with chronic hepatitis B and C. A 45-year-old female with 10 days status post right suprahepatic abscess drainage presented with recurrent, right, upper quadrant abdominal pain for one day...
September 16, 2017: Curēus
https://www.readbyqxmd.com/read/29152824/can-nomograms-predict-preoperative-axillary-lymph-node-metastasis-in-patients-with-breast-cancer-to-guide-second-look-ultrasonography
#11
Ameerah Azmil, Gaurav Jyoti Bansal
OBJECTIVES: The low sensitivity of ultrasonography (US) for diagnosing axillary lymph node metastasis in patients with breast cancer has led to the development of multiple tools in an attempt to increase preoperative sensitivity, including second-look US. We compared axillary lymph node metastasis predictor scores with postsurgical findings, using the Memorial Sloan Kettering Cancer Center (MSKCC; New York, NY) and Evidencio (www.evidencio.com) nomograms: 2 freely available online predictor tools...
November 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29127514/does-tranexamic-acid-increase-the-risk-of-thromboembolism-after-bilateral-simultaneous-total-knee-arthroplasties-in-asian-population
#12
Young-Hoo Kim, Jang-Won Park, Jun-Shik Kim, Dong-Hyuk Seo
PURPOSE: To ascertain whether tranexamic acid reduces the blood loss and transfusion rate and volumes; increase the prevalence of deep vein thrombosis (DVT); and investigate factors associated with DVT in patients undergoing primary bilateral total knee arthroplasties (TKAs) without use of chemical thromboprophylaxis. METHODS: There were 874 patients (1748 knees) in the control group who did not receive tranexamic acid and 871 patients (1742 knees) in the study group who received tranexamic acid...
November 10, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29077502/clinical-utility-of-ultrasound-measurements-of-plantar-fascia-width-and-cross-sectional-areaa-novel-technique
#13
Adebisi Bisi-Balogun, Michael Rector
BACKGROUND: We sought to develop a standardized protocol for ultrasound (US) measurements of plantar fascia (PF) width and cross-sectional area (CSA), which may serve as additional outcome variables during US examinations of both healthy asymptomatic PF and in plantar fasciopathy and determine its interrater and intrarater reliability. METHODS: Ten healthy individuals (20 feet) were enrolled. Participants were assessed twice by two raters each to determine intrarater and interrater reliability...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29067201/an-imaging-investigation-of-in%C3%A2-situ-uroliths-in-hospitalized-cats-in-new-zealand-and-in-the-united-states
#14
Paul F Wightman, Kate E Hill, Eli B Cohen, Janis Bridges, Charlotte F Bolwell, John French, Brian A Adler, Ron Green
The submission rates of feline uroliths to laboratories and the composition of uroliths have been reported in studies. The prevalence of uroliths reported on imaging findings has not been published. The objective of this retrospective study was to use imaging data to investigate the anatomical location and the prevalence of macroscopic in situ uroliths in cats. Radiographs, sonograms and imaging reports from two cohorts of cats (from New Zealand (n = 497) and the United States (n = 693)) from 2004-2013 were reviewed for the presence of in situ uroliths...
November 2016: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/29049233/pediatric-types-i-and-vi-choledochal-cysts-complicated-with-acute-pancreatitis-and-spontaneous-perforation-a-case-report-and-literature-review
#15
Ching-Chung Tsai, Po-Kai Huang, Hsien-Kuan Liu, Yu-Tsun Su, Ming-Chun Yang, Ming-Lun Yeh
RATIONALE: Choledochal cysts are a congenital disorder of the common bile duct that can cause progressive biliary obstruction and biliary cirrhosis. They were classified by Todani into five types. Of these, type VI choledochal cysts are rarely reported in the literature. PATIENT CONCERNS: A 22-month-old girl presented with intermittent epigastralgia for approximately 10 days and fever for three days. Fasting and total parenteral nutrition were administered after admission...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29027683/ultrasonographic-measurement-of-the-biceps-femoris-long-head-muscle-architecture
#16
Sandro R Freitas, João Marmeleira, Maria João Valamatos, Anthony Blazevich, Pedro Mil-Homens
OBJECTIVES: Biceps femoris long-head architectural assessment using ultrasonography (US) has not been previously described in detail for both acquisition (image capture) and digitization (image measurement) processes, and the effect of the US window width is unknown. This study aimed to describe the reliability and test-retest minimum detectable difference of US-based biceps femoris architectural measurements. METHODS: Muscle length was determined by marking the muscle-tendon junction distances...
October 13, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28990212/normal-development-of-the-corpus-callosum-and-evolution-of-corpus-callosum-sexual-dimorphism-in-infancy
#17
Chaw-Liang Chang, Nan-Chang Chiu, Yi-Chen Yang, Che-Sheng Ho, Kun-Long Hung
OBJECTIVES: The aim of this study was to establish reference ranges for the corpus callosum in infancy and to clarify how sexual dimorphism evolves between the fetal stage and infancy. METHODS: Normal sonograms from cerebral ultrasonographic examinations of 1- to 6-month-old healthy full-term infants were selected. The length and thickness of the corpus callosum were determined, and the effect of sex on these values was analyzed. Studies on corpus callosum sexual dimorphism were reviewed...
October 9, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28969104/sonographic-estimation-of-umbilical-cord-cross-section-area-and-its-reference-value-in-normal-pregnancy
#18
Khizer Hussain Afroze, Subhash Lakshmi Prabha, V Chandrakala, M Deepak
INTRODUCTION: The routine antenatal sonographic investigations of the umbilical cord are limited for assessment of number of umbilical vessels and doppler evaluation of umbilical blood flow. With the advancements of the sonographic techniques it is now possible to have more detailed evaluation of umbilical cord. There exist only few literatures on assessment of umbilical cord cross-sectional area during pregnancy to provide a baseline reference value. AIM: To establish the reference intervals of cross-sectional area of the umbilical cord during gestation and to find the correlation of umbilical cord cross-sectional area with the foetal anthropometric measurements...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28967674/estimating-gestational-age-with-sonography-regression-derived-formula-versus-the-fetal-biometric-average
#19
Chase R Cawyer, Sarah B Anderson, Jeff M Szychowski, Cherry Neely, John Owen
OBJECTIVES: To compare the accuracy of a new regression-derived formula developed from the National Fetal Growth Studies data to the common alternative method that uses the average of the gestational ages (GAs) calculated for each fetal biometric measurement (biparietal diameter, head circumference, abdominal circumference, and femur length). METHODS: This retrospective cross-sectional study identified nonanomalous singleton pregnancies that had a crown-rump length plus at least 1 additional sonographic examination with complete fetal biometric measurements...
September 14, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28952948/deep-neural-networks-for-the-recognition-and-classification-of-heart-murmurs-using-neuromorphic-auditory-sensors
#20
Juan P Dominguez-Morales, Angel F Jimenez-Fernandez, Manuel J Dominguez-Morales, Gabriel Jimenez-Moreno
Auscultation is one of the most used techniques for detecting cardiovascular diseases, which is one of the main causes of death in the world. Heart murmurs are the most common abnormal finding when a patient visits the physician for auscultation. These heart sounds can either be innocent, which are harmless, or abnormal, which may be a sign of a more serious heart condition. However, the accuracy rate of primary care physicians and expert cardiologists when auscultating is not good enough to avoid most of both type-I (healthy patients are sent for echocardiogram) and type-II (pathological patients are sent home without medication or treatment) errors made...
September 22, 2017: IEEE Transactions on Biomedical Circuits and Systems
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