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https://www.readbyqxmd.com/read/28643138/distinguishing-gastric-anisakiasis-from-non-anisakiasis-using-unenhanced-computed-tomography
#1
Hirokazu Ashida, Takao Igarashi, Kazuhiko Morikawa, Kenji Motohashi, Kunihiko Fukuda, Naoto Tamai
PURPOSE: This study aimed to assess the diagnostic performance of unenhanced computed tomography (CT) for distinguishing gastric anisakiasis from non-anisakiasis gastric conditions and the reproducibility of CT findings. METHODS: Fifty-six anisakiasis and 74 non-anisakiasis cases with gastric wall thickening on urgent observation using unenhanced CT were included. Using a κ analysis, two radiologists independently assessed the reproducibility of CT findings, including "circumferential gastric wall thickening," "gastric wall thickening extending more than two segments," "bulky and low-density gastric wall thickening," "increase in peri-gastric fat density," and "ascites...
June 22, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28643120/the-incidence-of-the-nephrotic-syndrome-in-childhood-in-germany
#2
Ingo Franke, Malik Aydin, Corinna Elke Llamas Lopez, Lisa Kurylowicz, Rainer Ganschow, Michael Lentze, Mark Born
BACKGROUND: The incidence of childhood nephrotic syndrome (NS) in Germany is not well known. METHODS: An ESPED-based nationwide collection of epidemiological data of children in 2005 and 2006. RESULT: The mean age of NS at onset was 5.5 ± 3.7 years. The gender ratio of boys to girls was 1.8:1. The average length of stay was 15.5 ± 11.2 days, with younger children remaining significantly longer in hospital. Steroid-resistance was more common in children ≥8 years (p = 0...
June 22, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28642788/comparison-between-intestinal-beh%C3%A3-et-s-disease-and-crohn-s-disease-in-characteristics-of-symptom-endoscopy-and-radiology
#3
Tianyu Zhang, Liwen Hong, Zhengting Wang, Rong Fan, Maochen Zhang, Yun Lin, Mengmeng Cheng, Xiaolin Zhou, Peijun Sun, Xiaoyi Lin, Jie Zhong
AIM: To evaluate different parameters in differentiating intestinal BD from CD. METHODS: The medical records of inpatients with intestinal BD and CD were retrospectively reviewed. The univariate value of different parameters was analyzed, respectively. A differentiation model was established by pooling all valuable parameters together. Diagnostic efficacy was evaluated, and a receiver operating curve (ROC) was plotted. RESULTS: Forty-two BD patients and ninety-seven CD patients were reviewed...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28641534/interest-of-single-hair-analysis-to-document-drug-exposure-literature-review-and-a-case-report-involving-zuclopenthixol
#4
Nathalie Allibe, Pascal Kintz, Amandine Faure, François Paysant, Anne-Pascale Michard-Lenoir, Françoise Stanke-Labesque, Virginie Scolan, Hélène Eysseric-Guerin
The analysis of hair to detect drugs and drugs of abuse is performed in various contexts, including child protection cases, abstinence control programs, and workplace drug testing. This alternative matrix offers several advantages, such as a large detection window (months) and non-invasive collection. Segmental analysis of multiple hair strands for drugs and metabolites has been widely reported in the literature over the past three decades, whereas a review of the literature showed that there are only 26 articles that report the analysis of a single hair...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28641234/improved-boundary-segmentation-of-skin-lesions-in-high-frequency-3d-ultrasound
#5
B Sciolla, P Delachartre, L Cowell, T Dambry, B Guibert
In this article, we propose a segmentation algorithm for skin lesions in 3D high-frequency ultrasound images. The segmentation is done on melanoma and Basal-cell carcinoma tumors, the most common skin cancer types, and could be used for diagnosis and surgical excision planning in a clinical context. Compared with previously proposed algorithms, which tend to underestimate the size of the lesion, we propose two new boundary terms which provide significant improvements of the accuracy. The first is a probabilistic boundary expansion (PBE) term designed to broaden the segmented area at the boundaries, which uses the feature asymmetry criterion...
June 15, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28640521/pet-mri-for-evaluating-subclinical-inflammation-of-ulcerative-colitis
#6
I-Lun Shih, Shu-Chen Wei, Rouh-Fang Yen, Chin-Chen Chang, Chi-Lun Ko, Been-Ren Lin, Chia-Tung Shun, Kao-Lang Liu, Jau-Min Wong, Yeun-Chung Chang
PURPOSE: To explore the utility of integrated positron emission tomography (PET) / magnetic resonance imaging (MRI) for evaluating subclinical inflammation in patients with ulcerative colitis (UC). MATERIALS AND METHODS: This prospective study was approved by the Institutional Review Board and informed consent was obtained. Between November 2015 and April 2016, 19 consecutive patients with UC in clinical remission were enrolled. These patients underwent 18F-fluorodeoxyglucose PET/MRI (3T) and colonoscopy...
June 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28637799/-68-ga-psma-pet-ct-and-volumetric-morphology-of-pet-positive-lymph-nodes-stratified-by-tumor-differentiation-of-prostate-cancer
#7
Maria Vinsensia, Peter L Choyke, Boris Hadaschik, Tim Holland-Letz, Jan Moltz, Klaus Kopka, Isabel Rauscher, Walter Mier, Markus Schwaiger, Uwe Haberkorn, Tobias Maurer, Clemens Kratochwil, Matthias Eiber, Frederik Giesel
(68)Ga prostate specific membrane antigen (PSMA) positron emission tomography (PET)/computer tomography (CT) is a new method to detect early nodal metastases in patients with biochemical relapse of prostate cancer (PCa). In this retrospective investigation the dimensions, volume, localization and maximum standardized uptake value (SUVmax) of nodes identified by (68)Ga-PSMA were correlated to their Gleason score (GS) at diagnosis. Methods: All PET/CT images were acquired 60±10 min after intravenous injection of (68)Ga-PSMA (mean dose 176 MBq)...
June 21, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28635102/ratiometric-analysis-of-optical-coherence-tomography-measured-in%C3%A2-vivo-retinal-layer-thicknesses-for-the-detection-of-early-diabetic-retinopathy
#8
Basanta Bhaduri, Ryan L Shelton, Ryan M Nolan, Lucas Hendren, Alexandra Almasov, Leanne T Labriola, Stephen A Boppart
Influence of diabetes mellitus (DM) and diabetic retinopathy (DR) on parafoveal retinal thicknesses and their ratios was evaluated. Six retinal layer boundaries were segmented from spectral-domain optical coherence tomography images using open-source software. Five study groups: (1) healthy control (HC) subjects, and subjects with (2) controlled DM, (3) uncontrolled DM, (4) controlled DR and (5) uncontrolled DR, were identified. The one-way analyses of variance (ANOVA) between adjacent study groups (i. e...
June 21, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28634041/a-machine-learning-algorithm-toward-color-analysis-for-chronic-liver-disease-classification-employing-ultrasound-shear-wave-elastography
#9
Ilias Gatos, Stavros Tsantis, Stavros Spiliopoulos, Dimitris Karnabatidis, Ioannis Theotokas, Pavlos Zoumpoulis, Thanasis Loupas, John D Hazle, George C Kagadis
The purpose of the present study was to employ a computer-aided diagnosis system that classifies chronic liver disease (CLD) using ultrasound shear wave elastography (SWE) imaging, with a stiffness value-clustering and machine-learning algorithm. A clinical data set of 126 patients (56 healthy controls, 70 with CLD) was analyzed. First, an RGB-to-stiffness inverse mapping technique was employed. A five-cluster segmentation was then performed associating corresponding different-color regions with certain stiffness value ranges acquired from the SWE manufacturer-provided color bar...
June 17, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28632041/automated-volumetry-of-hippocampus-is-useful-to-confirm-unilateral-mesial-temporal-sclerosis-in-patients-with-radiologically-positive-findings
#10
Guilherme Silva, Cristina Martins, Nádia Moreira da Silva, Duarte Vieira, Dias Costa, Ricardo Rego, José Fonseca, João Paulo Silva Cunha
Background and purpose We evaluated two methods to identify mesial temporal sclerosis (MTS): visual inspection by experienced epilepsy neuroradiologists based on structural magnetic resonance imaging sequences and automated hippocampal volumetry provided by a processing pipeline based on the FMRIB Software Library. Methods This retrospective study included patients from the epilepsy monitoring unit database of our institution. All patients underwent brain magnetic resonance imaging in 1.5T and 3T scanners with protocols that included thin coronal T2, T1 and fluid-attenuated inversion recovery and isometric T1 acquisitions...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28629084/facilitation-of-transscleral-drug-delivery-by-drug-loaded-magnetic-polymeric-particles
#11
Zeynab Mousavikhamene, Mohammad J Abdekhodaie, Hamid Ahmadieh
A unique method was used to facilitate ocular drug delivery from periocular route by drug loaded magnetic sensitive particles. Injection of particles in periocular space along the eye axis followed by application of magnetic field in front of the eye would trigger the magnetic polymeric particles to move along the direction of magnetic force and reside against the outer surface of the sclera. This technique prevents removal of drug in the periocular space, observed in conventional transscleral drug delivery systems and hence higher amount of drug can enter the eye in a longer period of time...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28625975/a-naturally-generated-decoy-of-the-prostate-apoptosis-response-4-protein-overcomes-therapy-resistance-in-tumors
#12
Nikhil Hebbar, Ravshan Burikhanov, Nidhi Shukla, Shirley Qiu, Yanming Zhao, Kojo S J Elenitoba-Johnson, Vivek M Rangnekar
Primary tumors are often heterogeneous, composed of therapy-sensitive and emerging therapy-resistant cancer cells. Interestingly, treatment of therapy-sensitive tumors in heterogeneous tumor microenvironments results in apoptosis of therapy-resistant tumors. In this study, we identify a Par-4 amino-terminal fragment (PAF) that is released by diverse therapy-sensitive cancer cells following therapy-induced caspase cleavage of the tumor suppressor Par-4 protein. PAF caused apoptosis in cancer cells resistant to therapy and inhibited tumor growth...
June 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28625856/nitroglycerin-increases-serotonin-transporter-expression-in-rat-spinal-cord-but-anandamide-modulated-this-effect
#13
Gábor Nagy-Grócz, Zsuzsanna Bohár, Annamária Fejes-Szabó, Klaudia Flóra Laborc, Eleonóra Spekker, Lilla Tar, László Vécsei, Árpád Párdutz
Migraine is one of the most prevalent neurological diseases, which affects 16% of the total population. The exact pathomechanism of this disorder is still not well understood, but it seems that serotonin and its transporter have a crucial role in the pathogenesis. One of the animal models of migraine is the systemic administration of nitroglycerin (NTG), a nitric oxide (NO) donor. NO can initiate a central sensitization process in the trigeminal system, which is also present in migraineurs. Recent studies showed that the endocannabinoid system has a modulatory role on the trigeminal activation and sensitization...
June 15, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28625479/the-change-of-adjacent-segment-after-cervical-disc-arthroplasty-compared-with-anterior-cervical-discectomy-and-fusion-a-meta-analysis-of-randomized-controlled-trials
#14
REVIEW
Liang Dong, Zhengwei Xu, Xiujin Chen, Dongqi Wang, Dichen Li, Tuanjing Liu, Dingjun Hao
BACKGROUD CONTEXT: Many meta-analyses have been performed to study the efficacy of cervical disc arthroplasty (CDA) compared with anterior cervical discectomy and fusion (ACDF); however, there are few data referring to adjacent segment within these meta-analyses, or investigators are unable to arrive at the same conclusion in the few meta-analyses about adjacent segment. With the increased concerns surrounding adjacent segment degeneration (ASDeg) and adjacent segment disease (ASDis) after anterior cervical surgery, it is necessary to perform a comprehensive meta-analysis to analyze adjacent segment parameters...
June 15, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28623409/evaluation-of-bone-viability-in-patients-after-girdlestone-arthroplasty-comparison-of-bone-spect-ct-and-mri
#15
G Diederichs, P Hoppe, F Collettini, G Wassilew, B Hamm, W Brenner, M R Makowski
PURPOSE: To test the diagnostic performance of bone SPECT/CT and MRI for the evaluation of bone viability in patients after girdlestone-arthroplasty with histopathology used as gold standard. MATERIALS AND METHODS: In this cross-sectional study, patients after girdlestone-arthroplasty were imaged with single-photon-emission-computed-tomography/computed-tomography (SPECT/CT) bone-scans using 99mTc-DPD. Additionally, 1.5 T MRI was performed with turbo-inversion-recovery-magnitude (TIRM), contrast-enhanced T1-fat sat (FS) and T1-mapping...
June 16, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28622185/a-comprehensive-meta-analysis-of-the-adjacent-segment-parameters-in-cervical-disk-arthroplasty-versus-anterior-cervical-discectomy-and-fusion
#16
Liang Dong, Dongqi Wang, Xiujin Chen, Tuanjing Liu, Zhengwei Xu, Mingsheng Tan, Dingjun Hao
STUDY DESIGN: This is a meta-analysis of controlled trials. OBJECTIVE: To assess the overall condition of adjacent segment of cervical disk arthroplasty (CDA) compared with anterior cervical discectomy and fusion (ACDF). SUMMARY OF BACKGROUND DATA: With the increase in CDA and ACDF, surgeons are taking more attention to adjacent segment degeneration (ASDeg) and adjacent segment disease (ASDis). There are more and more meta-analyses comparing the efficacy of CDA with ACDF, however, there are few meta-analyses referring to adjacent segment parameters, and investigators are still unable to arrive at the same conclusion...
June 15, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28622166/quantitative-analysis-of-iodine-image-of-dual-energy-computed-tomography-at-rest-comparison-with-99mtc-tetrofosmin-stress-rest-single-photon-emission-computed-tomography-myocardial-perfusion-imaging-as-the-reference-standard
#17
Takehiro Nakahara, Takuji Toyama, Masahiro Jinzaki, Ryotaro Seki, Yuichiro Saito, Tetsuya Higuchi, Minoru Yamada, Masashi Arai, Yoshito Tsushima, Sachio Kuribayashi, Masahiko Kurabayashi
PURPOSE: Dual-energy computed tomography (DECT) can be used for visual determination of iodine distribution in the myocardium (iodine image); however, the accuracy and reproducibility of the process remains debatable. Because of the low contrast-to-noise ratio of CT, we hypothesized that quantitative measurement may be more accurate for detecting myocardial ischemia. In this study, we evaluated our quantitative method by comparing it with visual analysis using Tc-tetrofosmin (TF) stress-rest single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) as the reference standard...
June 15, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28621052/10p15-3p13-duplication-inherited-from-paternal-balance-translocation-46-xy-t-5-10-q35-1-p13-identified-on-non-invasive-prenatal-testing
#18
Jin Mei, Hao Wang, Liyong Zhan
Balanced reciprocal translocations are relatively common human genetic abnormalities that involve the exchange of the terminal segments between different chromosomes and have an approximately 5-80% chance of generating an embryo with chromosomal abnormalities. Non-invasive prenatal testing (NIPT) has been increasingly used in clinical practice to detect fetal trisomies 21, 18 and 13 with a sensitivity and specificity of up to 99%. In this report, we describe a duplication on chromosome 10 and a deletion on chromosome 5 that were first detected on NIPT...
June 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28617730/eye-symptom-questionnaire-to-evaluate-anterior-eye-health
#19
Maria A Woodward, Nita G Valikodath, Paula Anne Newman-Casey, Leslie M Niziol, David C Musch, Paul P Lee
OBJECTIVES: Ophthalmologists assess eye complaints with a careful history and eye examination; however, other types of physicians have limited tools to evaluate anterior segment (AS) eye diseases. We identified the eye symptom questions that providers should ask to help determine the presence and urgency of AS eye diseases. METHODS: Persons with and without AS disease completed a self-report eye symptom questionnaire (ESQ) based on the National Institutes of Health Toolbox symptom items in an academic center's corneal and comprehensive eye clinics...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28616562/coronary-calcification-compromises-myocardial-perfusion-irrespective-of-luminal-stenosis
#20
Michael Y Henein, Tarek Bengrid, Rachel Nicoll, Ying Zhao, Bengt Johansson, Axel Schmermund
AIM: The aim of this study was to evaluate the relationship between coronary artery calcification (CAC) assessed by multi-detector computed tomography (MDCT) and myocardial perfusion assessed by cardiac magnetic resonance imaging (CMR) in a group of symptomatic patients. METHOD: Retrospective analysis of 120 patients (age 65.1 ± 8.9 years, 88 males) who presented with atypical chest pain to Bethanien Hospital, Frankfurt, Germany, between 2007 and 2010 and who underwent CAC scoring using MDCT, CMR, and conventional coronary angiography...
March 2017: IJC Heart & Vasculature
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