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https://www.readbyqxmd.com/read/28645685/concordance-between-brain-18-f-fdg-pet-and-cerebrospinal-fluid-biomarkers-in-diagnosing-alzheimer-s-disease
#1
S Rubí, A Noguera, S Tarongí, M Oporto, A García, H Vico, A Espino, M J Picado, A Mas, C Peña, G Amer
OBJECTIVES: Cortical posterior hypometabolism on PET imaging with (18)F-FDG (FDG-PET), and altered levels of Aß1-42 peptide, total Tau (tTau) and phosphorylated Tau (pTau) proteins in cerebrospinal fluid (CSF) are established diagnostic biomarkers in Alzheimer's disease (AD). An evaluation has been made of the concordance and relationship between the results of FDG-PET and CSF biomarkers in symptomatic patients with suspected AD. MATERIAL AND METHODS: A retrospective review was carried out on 120 patients with cognitive impairment referred to our Cognitive Neurology Unit, and who were evaluated by brain FDG-PET and a lumbar puncture for CSF biomarkers...
June 20, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28642065/severe-and-resistant-hypertension-in-an-older-woman-with-claudication
#2
Puneet Gupta, Robert Hagberg, Electra Kaloudis, Anika Lucas, Parth Shah, William B White
Coarctation of the aorta is an uncommon cause of treatment-resistant hypertension in adults. It is typically detected and treated in infancy or childhood with surgical or endovascular procedures. Most cases of recurrence of coarctation after repair occur in childhood or early adulthood; recurrence in older persons (>70 years) has rarely been reported. A 73-year-old woman was referred to us for the management of treatment-resistant hypertension accompanied by symptoms of claudication and headaches, which had resulted in multiple emergency room visits...
June 1, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28640824/molecular-diagnosis-of-plasmodium-ovale-by-photo-induced-electron-transfer-fluorogenic-primers-pet-pcr
#3
David Akerele, Dragan Ljolje, Eldin Talundzic, Venkatachalam Udhayakumar, Naomi W Lucchi
Accurate diagnosis of malaria infections continues to be challenging and elusive, especially in the detection of submicroscopic infections. Developing new malaria diagnostic tools that are sensitive enough to detect low-level infections, user friendly, cost effective and capable of performing large scale diagnosis, remains critical. We have designed novel self-quenching photo-induced electron transfer (PET) fluorogenic primers for the detection of P. ovale by real-time PCR. In our study, a total of 173 clinical samples, consisting of different malaria species, were utilized to test this novel PET-PCR primer...
2017: PloS One
https://www.readbyqxmd.com/read/28640750/in-vivo-monitoring-of-infection-via-implantable-microsensors-a-pilot-study
#4
Andrej Ring, Heiko Sorg, Andreas Weltin, Daniel J Tilkorn, Jochen Kieninger, Gerald Urban, Jörg Hauser
The most common complication after implantation of foreign material is infection, leading to implant failure and severe patient discomfort. Smoldering-infections proceed inapparently and might not get verified by radiological diagnostics. Early identification of this type of infection might significantly reduce the rate of complications. Therefore, we manufactured a microsensor strip in a hybrid of thin-film and laminate technology in a wafer-level process. It comprises electrochemical, amperometric microsensors for glucose, oxygen and lactate as well as an integrated reference electrode...
June 22, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28637959/examination-of-dose-reduction-using-image-noise-reduction-technology-in-cardiovascular-x-ray-systems
#5
Takaya Saijo, Shigenobu Seguchi
The aim of this study is to establish radiation exposure dose reduction protocols during cardiac intervention by decreasing the entrance dose at flat panel detector (FPD) with image quality evaluations. For measuring entrance surface dose (ESD), we have used a Radical 9015 dosimeter (6 cc ion chamber) placed under 20 cm thick acrylic plates at the patient's entrance reference point. We performed an image quality assessment based on quantitative as well as visual evaluation of the images obtained via current and dose reduction protocols...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28637587/comparative-study-on-secretome-and-transmembranome-of-immature-and-mature-metacestodes-of-echinococcus-multilocularis
#6
Fuqiang Huang, Zhisheng Dang, Haoji Zhang, Kinpei Yagi, Kyeongsoon Kim, Magona Joseph, Wenjun Pu, Yuzaburo Oku
Alveolar echinococcosis (AE) is a worldwide zoonosis caused by E. multilocularis. Humans become infected through oral ingestion of the eggs. Host of E. multilocularis produces immune responses that help to either reject and/or limit the growth of this parasite, and in response the parasite produces molecules against this immune attack. This study identifies candidate key molecules in the early infection phase and the chronic stage of the parasite infestation, through comparison of gene expression of 4- and 16-week metacestodes...
May 12, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28637202/adherence-to-antipsychotic-medication-and-criminal-recidivism-in-a-canadian-provincial-offender-population
#7
Stefanie N Rezansoff, Akm Moniruzzaman, Seena Fazel, Lawrence McCandless, Julian M Somers
Preliminary evidence suggests that adherence to antipsychotic medication reduces criminal recidivism among patients diagnosed with schizophrenia. However, existing studies operationalize antipsychotic adherence as a binary variable (usually using a threshold of ≥80%), which does not reflect the prevalence of suboptimal adherence in real-world settings. The purpose of the current analysis was to investigate the association between successive ordinal levels of antipsychotic adherence and criminal recidivism in a well-defined sample of offenders diagnosed with schizophrenia (n = 11462)...
June 20, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28632761/experience-improves-the-performance-of-endobronchial-ultrasound-guided-transbronchial-biopsy-for-peripheral-pulmonary-lesions-a-learning-curve-at-a-medical-centre
#8
Chun-Ta Huang, Sheng-Yuan Ruan, Yi-Ju Tsai, Chao-Chi Ho, Chong-Jen Yu
BACKGROUND: Endobronchial ultrasound(EBUS)-guided transbronchial biopsy(TBB) is the preferred diagnostic tool for peripheral pulmonary lesions(PPLs) and mastering this procedure is an important task in the training of chest physicians. Little has been published about the learning experience of physicians with this technique, particularly at an institutional level. We aimed to establish a learning curve for EBUS-guided TBB for PPLs at a medical center. METHODS: Between 2008 and 2015, consecutive patients with PPLs referred for EBUS-guided TBB at National Taiwan University Hospital were enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28630886/review-of-the-current-status-of-radiation-protection-in-diagnostic-radiology-in-africa
#9
REVIEW
Wilbroad Muhogora, Madan M Rehani
The aim of this paper is to review the available published studies from African countries on patient doses and medical radiation protection and identify strengths, weaknesses, and challenges. Papers on radiation doses to patients published until 2016 pertaining to studies in African countries were reviewed. Radiography, interventional radiology, computed tomography (CT), and mammography modalities were covered. In radiography, the entrance surface air kerma values were below the established diagnostic reference levels (DRLs) provided by the International Atomic Energy Agency, European Commission, and National Council on Radiation Protection and Measurements...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28629562/3t-mr-defecography-a-feasibility-study-in-sensorimotor-complete-spinal-cord-injured-patients-with-neurogenic-bowel-dysfunction
#10
Cornelia Putz, Celine D Alt, Cornelia Hensel, Björn Wagner, Simone Gantz, Hans-Jürgen Gerner, Norbert Weidner, Lars Grenacher
INTRODUCTION: To investigate whether MR-defecography can be employed in sensorimotor complete spinal cord injury (SCI) subjects as a potential diagnostic tool to detect defecational disorders associated with neurogenic bowel dysfunction (NBD) using standard parameters for obstructed defecation. MATERIAL AND METHODS: In a prospective single centre clinical trial, we developed MR-defecography in traumatic sensorimotor complete paraplegic SCI patients with upper motoneuron type injury (neurological level of injury T1 to T10) using a conventional 3T scanner...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28625793/comparison-of-sputum-collection-methods-for-tuberculosis-diagnosis-a-systematic-review-and-pairwise-and-network-meta-analysis
#11
Sumona Datta, Lena Shah, Robert H Gilman, Carlton A Evans
BACKGROUND: The performance of laboratory tests to diagnose pulmonary tuberculosis is dependent on the quality of the sputum sample tested. The relative merits of sputum collection methods to improve tuberculosis diagnosis are poorly characterised. We therefore aimed to investigate the effects of sputum collection methods on tuberculosis diagnosis. METHODS: We did a systematic review and meta-analysis to investigate whether non-invasive sputum collection methods in people aged at least 12 years improve the diagnostic performance of laboratory testing for pulmonary tuberculosis...
June 15, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28623003/serum-procalcitonin-levels-as-a-diagnostic-marker-for-septic-arthritis-a-meta-analysis
#12
Jingyi Zhao, Shufeng Zhang, Lei Zhang, Xianhui Dong, Jianhui Li, Ying Wang, Yinhui Yao
BACKGROUND: The aim of this study was to assess the value of serum procalcitonin (PCT) levels as a diagnostic marker for septic arthritis (SA) via meta-analysis. METHODS: We searched PubMed, Embase and the Cochrane Library, as well as the reference lists of relevant articles, for studies published up to May 21, 2015 and did not impose language restrictions. We selected original studies reporting the usefulness of PCT or C-reactive protein (CRP) as a diagnostic marker for SA...
June 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28622249/dynamic-liver-magnetic-resonance-imaging-in-free-breathing-feasibility-of-a-cartesian-t1-weighted-acquisition-technique-with-compressed-sensing-and-additional-self-navigation-signal-for-hard-gated-and-motion-resolved-reconstruction
#13
Benjamin Kaltenbach, Andreas M Bucher, Julian L Wichmann, Dominik Nickel, Christoph Polkowski, Renate Hammerstingl, Thomas J Vogl, Boris Bodelle
OBJECTIVES: The aim of this study was to assess the feasibility of a free-breathing dynamic liver imaging technique using a prototype Cartesian T1-weighted volumetric interpolated breathhold examination (VIBE) sequence with compressed sensing and simultaneous acquisition of a navigation signal for hard-gated and motion state-resolved reconstruction. MATERIALS AND METHODS: A total of 43 consecutive oncologic patients (mean age, 66 ± 11 years; 44% female) underwent free-breathing dynamic liver imaging for the evaluation of liver metastases from colorectal cancer using a prototype Cartesian VIBE sequence (field of view, 380 × 345 mm; image matrix, 320 × 218; echo time/repetition time, 1...
June 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28621232/paving-the-path-for-invasion-the-polyedric-role-of-lasp1-in-cancer
#14
REVIEW
Vitalba Ruggieri, Francesca Agriesti, Tiziana Tataranni, Roberto Perris, Domenica Mangieri
Although usually referred to as a structural actin-binding protein, LIM and SH3 domain-containing protein may actually be dynamically involved in the control of a wide spectrum of cellular processes, by virtue of its interaction with several molecular partners. Alongside being ubiquitously expressed in physiological conditions, LIM and SH3 domain-containing protein is overexpressed in a growing number of human cancers, in which it may actively contribute to their aggressiveness by promoting cell proliferation and migration...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28618058/detection-of-iron-restriction-in-anaemic-and-non-anaemic-patients-new-diagnostic-approaches
#15
Lothar Thomas, Christian Thomas
OBJECTIVE: The aim of this study was to detect iron restriction in non-anaemic patients and iron-restricted erythropoiesis (IRE) in patients with anaemia. METHOD: Haematologic indices and biochemical markers of iron deficiency (ID) were determined using the clinically accepted cut-off level for serum ferritin of ≤30 μg/l as reference of ID. To evaluate the prevalence of iron restriction and IRE in patients with higher ferritin levels we used the thresholds of the markers of ID as reference...
June 15, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28617240/what-carcinoembryonic-antigen-level-should-trigger-further-investigation-during-colorectal-cancer-follow-up-a-systematic-review-and-secondary-analysis-of-a-randomised-controlled-trial
#16
Bethany Shinkins, Brian D Nicholson, Tim James, Indika Pathiraja, Sian Pugh, Rafael Perera, John Primrose, David Mant
BACKGROUND: Following primary surgical and adjuvant treatment for colorectal cancer, many patients are routinely followed up with blood carcinoembryonic antigen (CEA) testing. OBJECTIVE: To determine how the CEA test result should be interpreted to inform the decision to undertake further investigation to detect treatable recurrences. DESIGN: Two studies were conducted: (1) a Cochrane review of existing studies describing the diagnostic accuracy of blood CEA testing for detecting colorectal recurrence; and (2) a secondary analysis of data from the two arms of the FACS (Follow-up After Colorectal Surgery) trial in which CEA testing was carried out...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28616810/accuracy-of-non-contrast-pmct-for-determining-cause-of-death
#17
Garyfalia Ampanozi, Yannick A Thali, Wolf Schweitzer, Gary M Hatch, Lars C Ebert, Michael J Thali, Thomas D Ruder
The aim of this study was (1) to compare levels of accuracy regarding the categorization of causes of death between non-contrast post-mortem computed tomography (PMCT) and the final forensic report as well as between autopsy and the final forensic report, and (2) to assess levels of confidence regarding the categorization of causes of death after non-contrast PMCT and after autopsy. This prospective study was conducted over a 5 month period during which 221 cases were admitted to our institute for forensic investigations...
June 15, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28610702/a-quality-control-based-correction-method-for-displayed-dose-indices-on-ct-scanner-consoles-in-patient-dose-surveys
#18
Masoumeh Parsi, Mehdi Sohrabi, Fereidoun Mianji, Reza Paydar
PURPOSE: A new quality-control-based (QC-based) method is introduced to obtain correction factors to be applied to displayed patient dose indices (CTDIVol and DLP) on CT scanner consoles to verify improvement of dose surveys for diagnostic reference levels (DRLs) determination. METHOD: An available data-base of QC documents and reports of 57 CT scanners in Tehran, Iran was used to estimate CTDIVol, DLP and relevant correction factors for three CT examination types including head, chest and abdomen/pelvis...
June 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28604488/anterior-cervical-discectomy-and-fusion-outcomes-over-10-years-a-prospective-study
#19
Glenn R Buttermann
STUDY DESIGN: Prospective cohort study with >10-year follow-up. OBJECTIVE: To assess the long-term, >10-year, clinical outcomes of anterior cervical discectomy and fusion (ACDF) and to compare outcomes based on primary diagnosis of disc herniation; stenosis or advanced degenerative disc disease (DDD); number of levels treated; and preexisting adjacent level degeneration. SUMMARY OF BACKGROUND DATA: ACDF is a proven treatment for patients with stenosis and disc herniation and results in significantly improved short- and intermediate-term outcomes...
June 9, 2017: Spine
https://www.readbyqxmd.com/read/28603099/using-receiver-operating-characteristic-curves-to-evaluate-the-diagnostic-value-of-the-combination-of-multislice-spiral-ct-and-alpha-fetoprotein-levels-for-small-hepatocellular-carcinoma-in-cirrhotic-patients
#20
Guang-Sheng Jia, Guang-Long Feng, Jin-Ping Li, Hai-Long Xu, Hui Wang, Yi-Peng Cheng, Lin-Lin Yan, Hui-Jie Jiang
BACKGROUND: The various combination of multiphase enhancement multislice spiral CT (MSCT) makes the diagnosis of a small hepatocellular carcinoma (sHCC) on the background of liver cirrhosis possible. This study was to explore whether the combination of MSCT enhancement scan and alpha-fetoprotein (AFP) level could increase the diagnostic efficiency for sHCC. METHODS: This study included 35 sHCC patients and 52 cirrhotic patients without image evidence of HCC as a control group...
June 2017: Hepatobiliary & Pancreatic Diseases International: HBPD INT
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