Read by QxMD icon Read

Image evaluation

Jacques Klein, Arachk de Górski, Daniel Benamran, Jean-Paul Vallee, Thomas De Perrot, Gregory J Wirth, Christophe E Iselin
INTRODUCTION: The study aimed to evaluate 3 different modalities of transrectal ultrasound (TRUS)-guided prostate biopsies (PBs; 2D-, 3D- and targeted 3D-TRUS with fusion to MRI - T3D). Primary end point was the detection rate of prostate cancer (PC). Secondary end point was the detection rate of insignificant PC according to the Epstein criteria. PATIENTS AND METHODS: Inclusion of 284 subsequent patients who underwent 2D-, 3D- or T3D PB from 2011 to 2015. All patients having PB for initial PC detection with a serum prostate-specific antigen value ≤20 ng/ml were included...
October 27, 2016: Urologia Internationalis
Everton Falcão de Oliveira, Aline Etelvina Casaril, Wagner Souza Fernandes, Michelle de Saboya Ravanelli, Márcio José de Medeiros, Roberto Macedo Gamarra, Antônio Conceição Paranhos Filho, Elisa Teruya Oshiro, Alessandra Gutierrez de Oliveira, Eunice Aparecida Bianchi Galati
The monthly distribution and abundance of sand flies are influenced by both biotic and abiotic factors. The present study aimed to evaluate the seasonal distribution of sand flies and the relation between their abundance and environmental parameters, including vegetation and climate. This study was conducted over a 2-year period (April 2012 to March 2014). Monthly distribution was evaluated through the weekly deployment of CDC light traps in the peridomicile area of 5 residences in an urban area of the municipality of Corumbá in the State of Mato Grosso do Sul, Brazil...
2016: PloS One
Addolorata Marasco, Simona Nocerino, Gabriele Pinto, Antonino Pollio, Giorgio Trojsi, Antonino De Natale
The potential impact of cyanobacteria and microalgae on the weathering of calcareous tesserae from a Roman mosaic of the II Century CE has been followed through in vitro experiments. Laboratory tests were carried out by inoculating mosaic tiles with single strains of Cyanobacteria or Chlorophyta to evaluate the roles of pioneer phototrophic microrganism on the resulting architecture of biofilms. The interaction between tesserae and strains was assessed at the whole substratum and micrometer scales, by image analysis and Confocal Laser Scanning (CLS) microscopy, respectively...
2016: PloS One
Andrew B Rosenkrantz, James S Babb, Samir S Taneja, Justin M Ream
Purpose To test the impact of existing Prostate Imaging Reporting and Data System (PI-RADS) version 2 (V2) decision rules, as well as of proposed adjustments to these decision rules, on detection of Gleason score (GS) 7 or greater (GS ≥7) prostate cancer. Materials and Methods Two radiologists independently provided PI-RADS V2 scores for the dominant lesion on 343 prostate magnetic resonance (MR) examinations. Diagnostic performance for GS ≥7 tumor was assessed by using MR imaging-ultrasonography fusion-targeted biopsy as the reference...
October 26, 2016: Radiology
Aaron C W Lin, Wendy Strugnell, Robyn Riley, Benjamin Schmitt, Michael Zenge, Michaela Schmidt, Norman R Morris, Christian Hamilton-Craig
PURPOSE: To assess the clinical feasibility of a compressed sensing cine magnetic resonance imaging (MRI) sequence of both high temporal and spatial resolution (CS_bSSFP) in comparison to a balanced steady-state free precession cine (bSSFP) sequence for reliable quantification of left ventricular (LV) volumes and mass. MATERIALS AND METHODS: Segmented MRI cine images were acquired on a 1.5T scanner in 50 patients in the LV short-axis stack orientation using a retrospectively gated conventional bSSFP sequence (generalized autocalibrating partially parallel acquisition [GRAPPA] acceleration factor 2), followed by a prospectively triggered CS_bSSFP sequence with net acceleration factor of 8...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
Zhijun Li, Matthew D Muller, Jianli Wang, Christopher T Sica, Prasanna Karunanayaka, Lawrence I Sinoway, Qing X Yang
PURPOSE: To evaluate the dynamic characteristics of T2* -weighted signal change in exercising skeletal muscle of healthy subjects and peripheral artery disease (PAD) patients under a low-intensity exercise paradigm. MATERIALS AND METHODS: Nine PAD patients and nine age- and sex-matched healthy volunteers underwent a low-intensity exercise paradigm while magnetic resonance imaging (MRI) (3.0T) was obtained. T2*-weighted signal time-courses in lateral gastrocnemius, medial gastrocnemius, soleus, and tibialis anterior were acquired and analyzed...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
Xin Chen, Zelan Ma, Yanqi Huang, Lan He, Cuishan Liang, Changzheng Shi, Zhongping Zhang, Changhong Liang, Zaiyi Liu
PURPOSE: To investigate the value of multiparametric magnetic resonance imaging (MRI) diffusion-weighted imaging (DWI) for monitoring the ultra-early (within 24 hours) treatment effect of sorafenib in human hepatocellular carcinoma (HCC) xenografts. MATERIALS AND METHODS: With institutional Animal Care and Use Committee approval, 16 BALB/c nude mice bearing subcutaneous HCC xenografts underwent serial Gaussian and non-Gaussian DWI at baseline and 1, 3, 6, 12, and 24 hours posttreatment using a 1...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
Daniel Summer Gareau, Joel Correa da Rosa, Sarah Yagerman, John A Carucci, Nicholas Gulati, Ferran Hueto, Jennifer L DeFazio, Mayte Suárez-Farinas, Ashfaq Marghoob, James G Krueger
We developed an automated approach for generating quantitative image analysis metrics (imaging biomarkers) that are then analyzed with a set of thirteen machine-learning algorithms to generate an overall risk score that is called a Q-score. These methods were applied to a set of 120 "difficult" dermoscopy images of dysplastic nevi and melanomas that were subsequently excised/classified. This approach yielded 98% sensitivity and 36% specificity for melanoma detection, approaching sensitivity/specificity of expert lesion evaluation...
October 26, 2016: Experimental Dermatology
Jung Jae Park, Byung Kwan Park
PURPOSE: To evaluate the role of Prostate Imaging Reporting and Data System v. 2 (PI-RADSv2) in triaging patients with prostate cancer according to Prostate Cancer Research International: Active Surveillance (PRIAS). MATERIALS AND METHODS: Between January 2012 and December 2014, 456 patients with biopsy-proven cancer underwent multiparametric 3T magnetic resonance imaging (MRI) using T2 -weighted, diffusion-weighted, and dynamic contrast-enhanced MRI sequences, and then radical prostatectomy...
October 26, 2016: Journal of Magnetic Resonance Imaging: JMRI
Saurabh Zanwar, Vikas Ostwal, Arvind Sahu, Deepak Jain, Anant Ramaswamy, Avanish Saklani, Mukta Ramadwar, Nitin Shetty, Shailesh V Shrikande
INTRODUCTION: There is scarce data relating to methods to improve sphincter preservation in rectal gastrointestinal stromal tumor (GIST). Increasing the duration of neoadjuvant (NA) imatinib resulting in improved sphincter preservation rate has not been established. This retrospective analysis looks at the rates of sphincter preservation in rectal GIST with NA imatinib and effect of duration of NA imatinib on the same to find out optimum duration of NA with respect to sphincter preservation in rectal GIST patients...
October 26, 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
Gianluca Pontone, Giuseppe Muscogiuri, Daniele Andreini, Andrea I Guaricci, Marco Guglielmo, Saima Mushtaq, Andrea Baggiano, Edoardo Conte, Virginia Beltrama, Andrea Annoni, Alberto Formenti, Elisabetta Mancini, Mark G Rabbat, Mauro Pepi
The increased number of patients with coronary artery disease (CAD) in developed countries is of great clinical relevance and involves a large burden of the healthcare system. The management of these patients is focused on relieving symptoms and improving clinical outcomes. Therefore the ideal test would provide the correct diagnosis and actionable information. To this aim, several non-invasive functional imaging modalities are usually used as gatekeeper to invasive coronary angiography (ICA), but their diagnostic yield remains low with limited accuracy when compared to obstructive CAD at the time of ICA or invasive fractional flow reserve (FFR)...
December 2016: Current Treatment Options in Cardiovascular Medicine
Manigandan Subramanyam Thyagarajan, Khalid Sharif
Space occupying liver lesions usually present with abdominal pain or abnormal physical findings, such as a palpable abdominal mass or distention. Liver lesions identified in children include benign and malignant neoplasms, inflammatory masses, cysts and metastatic lesions. Two-thirds of liver lesions in children are malignant. Hepatoblastoma accounts for two-thirds of malignant liver tumors in children. Benign lesions of the liver in children include vascular lesions, hamartomas, adenomas, and focal nodular hyperplasia...
October 25, 2016: Indian Journal of Pediatrics
Ryo Takaji, Shunro Matsumoto, Maki Kiyonaga, Yasunari Yamada, Hiromu Mori, Yukio Iwashita, Masayuki Ohta, Masafumi Inomata, Naoki Hijiya, Masatsugu Moriyama, Hajime Takaki, Kengo Fukuzawa, Hirotoshi Yonemasu
OBJECTIVES: Periportal low attenuation (PPLA) associated with metastatic liver cancer is occasionally seen on multi-detector-row CT (MDCT). The purpose of this study was to investigate the MDCT patterns of the PPLA and to correlate it with pathological findings. METHODS: We retrospectively reviewed the MDCT images of 63 patients with metastatic liver cancers from colorectal adenocarcinoma. On MDCT scans, PPLA associated with liver metastasis was visualized in six patients with colorectal cancer...
October 25, 2016: Japanese Journal of Radiology
Koray Akkan, Erhan Ilgit, Baran Onal, Emetullah Cindil, Evsen Polattas Solak, Fatih Oncu, Dilan Ece Geylan
BACKGROUND: The treatment strategy and the correct incidence of near occlusion (NO) of the internal carotid artery (ICA) is still controversial. In routine radiological imaging NO can easily be misdiagnosed as complete occlusion and there is no consensus on the standard treatment strategy. PURPOSE: To present our perioperative and long-term follow-up results of ICA NO patients treated with carotid artery stenting (CAS). MATERIAL AND METHODS: Between 2004-2014 a total of 182 patients with ICA NO were evaluated for CAS...
October 25, 2016: Clinical Neuroradiology
Xin Tan, Peng Fang, Jie An, Huan Lin, Yi Liang, Wen Shen, Xi Leng, Chi Zhang, Yanting Zheng, Shijun Qiu
INTRODUCTION: Patients with type 2 diabetes mellitus (T2DM) have usually been found cognitive impairment associated with brain white matter (WM) abnormalities. However, findings have varied across studies, and any potential relationship with Alzheimer's disease (AD) remains unclear. The aim of this study was to assess the whole-brain WM integrity of T2DM patients and to compare our findings with those of published AD cases. METHODS: In this study, we used diffusion tensor imaging (DTI) combined with tract-based spatial statistics (TBSS) to investigate whole-brain WM abnormalities in 48 T2DM patients and 48 healthy controls...
October 25, 2016: Neuroradiology
Nick A van Alphen, Mohamed Morsy, Alexis T Laungani, Assaf Kadar, Andrew J Vercnocke, Nirusha Lachman, Erik L Ritman, Steven L Moran
BACKGROUND: The purpose of this study was to use micro-computed tomography to demonstrate the intraosseous vascularity of the lunate within a three-dimensional orientation to identify areas of greatest perfusion and define vascular "safe zones" for surgical intervention. METHODS: Fourteen upper extremities were injected with a lead-based contrast agent. The lunates were harvested and scanned using a micro-computed tomography scanner. The intraosseous vascularity was incorporated into a three-dimensional image...
November 2016: Plastic and Reconstructive Surgery
Shailesh Agarwal, Jordan Talia, Peter S Liu, Adeyiza O Momoh, Jeffrey H Kozlow
BACKGROUND: Computed tomographic angiography is increasingly used during surgical planning for abdominally based microvascular breast reconstruction. Cost-analysis studies have demonstrated a benefit to the use of computed tomographic angiography, although the secondary costs of incidental findings have not been previously reported. This study investigates the cost of computed tomographic angiography, taking into account the cost of incidental findings found during imaging. METHODS: Patients undergoing preoperative computed tomographic angiography in preparation for autologous abdominally based breast reconstruction from July of 2010 through May of 2014 were included in this study...
November 2016: Plastic and Reconstructive Surgery
Chandhana Paka, Ixora Kamisan Atan, Rebeca Rios, Hans Peter Dietz
OBJECTIVE: The aim of this study was to investigate the association of the anatomic integrity of the external anal sphincter (EAS) detected on transperineal ultrasound (TPUS) with symptoms of anal incontinence (AI) as measured by St Mark's Incontinence Score (SMIS) and the visual analog scale (VAS). METHODS: This is an observational, cross-sectional analysis of 486 women who presented to a tertiary urogynecological center between May 2013 and August 2014. They underwent a standardized interview and an examination that involved 3-dimensional/4-dimensional TPUS...
October 25, 2016: Female Pelvic Medicine & Reconstructive Surgery
Kimberly Howard-Quijano, Ali Salem, Charles Barkulis, Einat Mazor, Jennifer C Scovotti, Jonathan K Ho, Richard J Shemin, Tristan Grogan, David Elashoff, Aman Mahajan
BACKGROUND: Echocardiography-based speckle-tracking strain imaging is an emerging modality to assess left ventricular function. The aim of this study was to investigate the change in left ventricular systolic function after cardiac surgery with 3-dimensional (3D) speckle-tracking strain imaging and to determine whether preoperative 3D strain is an independent predictor of acute and long-term clinical outcomes after aortic valve, mitral valve, and coronary artery bypass grafting operations...
October 24, 2016: Anesthesia and Analgesia
Da Qin Zhan, Xing Chen, Rong Wang, Jing Zhang, Dan Yu Zhao, Shu Jing Zhang, Zhi Feng Wang, Rui Jun Ma, Bo Hou
BACKGROUND/AIMS: To evaluate the diagnostic significance of appendiceal orifice inflammation (AOI) in ulcerative colitis (UC) patients. MATERIALS AND METHODS: We retrospectively examined data from patients with colitis from May 2010 to January 2014 and assigned them to two groups: UC cases and specific colitis cases. First, we clarified the difference in the AOI+ rate between the two groups. Thereafter, imaging findings of all the patients with colitis were re-examined...
September 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"