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https://www.readbyqxmd.com/read/29221262/differences-in-airway-remodeling-and-airway-inflammation-among-moderate-severe-asthma-clinical-phenotypes
#1
Wen-Jing Ye, Wei-Guo Xu, Xue-Jun Guo, Feng-Feng Han, Juan Peng, Xiao-Ming Li, Wen-Bin Guan, Li-Wei Yu, Jin-Yuan Sun, Zhi-Lei Cui, Lin Song, Yue Zhang, Yan-Min Wang, Tian-Yun Yang, Xia-Hui Ge, Di Yao, Song Liu
Background: To identify asthma clinical phenotypes using cluster analysis and improve our understanding of heterogeneity in asthma. Methods: Clustering approaches were applied to 203 patients who were diagnosed with asthma in XinHua Hospital (January 2012 to December 2015). One hundred and twenty patients underwent multi-slice spiral computed tomography (MSCT) examination and 30 underwent bronchial mucosal biopsy for evaluation of airway remodeling and airway inflammation among the phenotypes...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29181399/mri-based-estimation-of-scalar-cochlear-implant-electrode-position
#2
A Stratmann, P Mittmann, G Rademacher, G Grupe, S Hoffmann, S Mutze, A Ernst, I Todt
The position of the cochlear-implant electrode is important to audiological outcomes after cochlear implantation. The common technique to evaluate the intracochlear electrode's position involves the use of ionized radiation in MSCT, DVT, or flat-panel tomography (FPT). Recent advances in knowledge regarding the handling of MRI artifacts in cochlear implantees indicate that estimating the intracochlear electrode's position with an MRI could be possible. This study's aim was to evaluate the ipsilaterally position of electrodes using MRI at 1...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29142489/correlation-between-osteoprotegerin-serum-level-and-coronary-calcification-using-coronary-artery-calcium-score-in-patient-with-moderate-severe-cardiovascular-risk-factor
#3
J Nugroho, Widorini Widorini
Coronary artery calcification is a part of atherosclerosis process associated with coronary heart disease. Recently, coronary artery calcification assessment using computed tomography (CT) is still the best noninvasive imaging with high sensitivity and specificity. Osteoprotegerin (OPG) is one of vascular calcification marker that through its role to bind receptor activator of nuclear factor-κβ ligand and inhibit osteoclastogenesis is suspected of playing a role for coronary calcification in atherosclerosis process...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29139242/-the-effiectiveness-of-extracorporeal-shock-wave-lithotripsy-in-treating-proxima-ureteral-stones
#4
M I Kogan, I I Belousov, A M Yassine
Extracorporeal shock wave lithotripsy (ESWL) has proven efficacy in the treatment of proximal ureteral stones. The research to date has not been able to establish real time to spontaneous stone clearance after ESWL and the appropriateness and effectiveness of -blockers in stimulating residual stone clearance after ESWL. AIM: To conduct a comprehensive assessment of the effectiveness of ESWL in treating proximal ureteral stones and determine the appropriateness of using -blockers to stimulate residual stone clearance...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29135151/-case-report-of-rare-co-occurrence-of-renal-cell-carcinoma-and-crossed-renal-dystopia-l-shaped-kidney
#5
V N Bakov, M S Los
L-shaped kidney refers to a rare anomaly of the relative kidney positioning. Due to low prevalence, the literature on the co-occurrence of this anomaly with malignancy is lacking. And, if the diagnosis of a renal anomaly does not present difficulties, if a tumor is detected in such a kidney, even MSCT does not always help differentiate a pelvic tumor from a tumor of the renal parenchyma spreading to the pelvicalyceal system. This has important implications for choosing an appropriate surgical strategy. A feature of the presented clinical observation is the co-occurrence of the rare anomaly of kidney position and locally advanced renal cell carcinoma spreading to the renal pelvis...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29135137/-renal-function-after-laparoscopic-partial-nephrectomy-with-superselective-balloon-embolization-of-renal-artery
#6
A V Maksimov, A G Martov, L P Pavlov
AIM: To evaluate the functional state of the renal parenchyma after partial nephrectomy, depending on surgical technique. MATERIALS AND METHODS: The study comprised 21 patients with kidney neoplasms of stage T1-2N0M0. The patients underwent either laparoscopic partial nephrectomy with superselective balloon embolization of the renal artery (study group, n=11), or partial nephrectomy with vascular clamping (control group, n=10). The mean age of the patients in the study group (3 men and 8 women) was 56...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29131799/multi-slice-computed-tomography-assessment-of-everolimus-eluting-absorb-bioresorbable-scaffold-in-comparison-with-metallic-drug-eluting-stents-from-the-absorb-japan-randomized-trial
#7
Kengo Tanabe, Jeffrey J Popma, Ken Kozuma, Shigeru Saito, Toshiya Muramatsu, Sunao Nakamura, Atsuo Namiki, Yoshihiro Morino, Nobuhisa Hagiwara, Masaaki Uematsu, Tomohiro Kawasaki, Kenshi Fujii, Patrick W Serruys, Yoshinobu Onuma, Shihwa Ying, Hajime Kusano, Gregg W Stone, Takeshi Kimura
AIMS: Blooming artifacts limit accurate coronary assessment by multi-slice computed tomography (MSCT) in metallic stents. We sought to investigate whether bioresorbable vascular scaffold (BVS) could be better assessed by MSCT. Methods and Results: Among 400 patients in the randomized ABSORB Japan trial, a pre-specified MSCT sub-study was performed in 98 patients (103 lesions) in the BVS arm and 49 patients (49 lesions) in the cobalt chromium everolimus-eluting stent (CoCr-EES) arm at 13-month prior to follow-up angiography...
November 14, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29124381/intraprocedural-3d-perfusion-measurement-during-chemoembolisation-with-doxorubicin-eluting-beads-in-liver-metastases-of-malignant-melanoma
#8
Philippe L Pereira, Kristina Krüger, Ernst Hohenstein, Florian Welke, Christof Sommer, Friedegund Meier, Thomas Eigentler, Claus Garbe
OBJECTIVES: To study feasibility and validity of a new software application for intraprocedural assessment of perfusion during chemoembolisation of melanoma metastases. METHODOLOGY: In a prospective phase-II trial, ten melanoma patients with liver-only metastases underwent chemoembolisation with doxorubicin-eluting beads (DEBDOX-TACE). Tumour perfusion was evaluated immediately before and after treatment at cone beam computer tomography (CBCT) using a new software application...
November 9, 2017: European Radiology
https://www.readbyqxmd.com/read/29111398/multi-slice-ct-msct-imaging-in-pre-trans-catheter-aortic-valve-implantation-tavi-screening-how-to-perform-and-how-to-interpret
#9
REVIEW
George Latsios, Themistoklis N Spyridopoulos, Konstantinos Toutouzas, Andreas Synetos, George Trantalis, Konstantinos Stathogiannis, Vassiliki Penesopoulou, George Oikonomou, Elias Brountzos, Dimitrios Tousoulis
Aortic valve stenosis (AS) is the commonest valvular heart disease among elderly. Trans-catheter aortic valve implantation (TAVI) has become an established and effective alternative therapeutical procedure for inoperable and high risk patients with symptomatic AS. The procedural success is greatly dependent on a thorough pre- TAVI imaging screening. This requires a comprehensive and multi-modality approach, in which multi-slice computed tomography (MSCT) is the cornerstone in the selection of eligible patients, in choosing the appropriate prosthesis and its size, as well as in mapping the safest access route for the intervention...
October 27, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/29082213/reducing-radiation-doses-in-female-breast-and-lung-during-ct-examinations-of-thorax-a-new-technique-in-two-scanners
#10
P Mehnati, M Ghavami, H Heidari
BACKGROUND: Chest CT is a commonly used examination for the diagnosis of lung diseases, but a breast within the scanned field is nearly never the organ of interest. OBJECTIVE: The purpose of this study is to compare the female breast and lung doses using split and standard protocols in chest CT scanning. MATERIALS AND METHODS: The sliced chest and breast female phantoms were used. CT exams were performed using a single-slice (SS)- and a 16 multi-slice (MS)- CT scanner at 100 kVp and 120 kVp...
September 2017: Journal of Biomedical Physics & Engineering
https://www.readbyqxmd.com/read/29079357/classification-of-the-level-of-mandibular-atrophy-a-computer-assisted-study-based-on-500-ct-scans
#11
Viktoria Varga, Stefan Raith, Christina Loberg, Ali Modabber, Alexander K Bartella, Frank Hölzle, Horst Fischer, Timm Steiner
OBJECTIVE: For the optimal treatment of patients with highly atrophic mandibles, it is required to assess and quantify the extent of atrophy. The classification schemes that are well established today are known to be limited with respect to objectivity and reproducibility. Thus, the aim of the study was to generate a computer-aided method of classification, investigate its applicability in comparison with the established methods, and apply it to a large set of data. MATERIALS AND METHODS: Mandibular geometries were segmented from 500 Multislice (MSCT) datasets of atrophic and non-atrophic mandibles and automatically processed to gain virtual images of the mandibular cross-sections...
September 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29076465/-use-of-a-mini-approach-for-performing-ec-ic-bypass-in-occlusive-lesions-of-the-brachiocephalic-arteries
#12
K S Ovsyannikov, A V Dubovoy
PURPOSE: to evaluate the advantages and disadvantages of a mini-approach for performing EC-IC bypass. MATERIAL AND METHODS: The mini-approach was used in 35 patients (32 males and 3 females) with symptomatic occlusive lesions of the brachiocephalic arteries (BCAs) who were treated at the Department of Vascular Neurosurgery of the Federal Center of Neurosurgery in Novosibirsk in the period between January and December 2014. The mini-approach was performed through a skin incision of up to 5...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29068171/one-year-clinical-and-computed-tomography-follow-up-after-implantation-of-bioresorbable-vascular-scaffolds-in-patients-with-coronary-chronic-total-occlusions
#13
Joren Maeremans, David Verhaert, Bruno Pereira, Peter Frambach, Carlos Van Mieghem, Emanuele Barbato, Endry Willems, Mathias Vrolix, Jo Dens
OBJECTIVES: To assess the safety and efficacy of everolimus-eluting bioresorbable scaffolds (BRS) in the treatment of chronic total occlusions (CTO) using noninvasive multislice computed tomography (MSCT) angiography at one-year follow-up. BACKGROUND: Current evidence regarding the safety and efficacy of BRS for the percutaneous treatment of CTO is limited. METHODS: Between September 2013 and January 2016, patients who received one or more ABSORB BRSs were included at three centers...
October 25, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29067491/impact-of-malondialdehyde-modified-low-density-lipoprotein-on-coronary-plaque-vulnerability-in-patients-not-receiving-lipid-lowering-therapy-a-whole-coronary-analysis-with-multislice-computed-tomography
#14
Tsuyoshi Ito, Taku Ichihashi, Hiroshi Fujita, Tomonori Sugiura, Nobuyuki Ohte
Vulnerable plaque disruption was suggested as a primary cause of acute coronary syndrome. This study investigated the impact of malondialdehyde-modified low-density lipoprotein (MDA-LDL) on whole coronary plaque vulnerability, based on multislice-computed tomography (MSCT). We included 197 patients that were not receiving lipid-lowering therapy. We retrospectively analyzed MSCT and MDA-LDL measurements. We defined a CT-derived vulnerable plaque as a plaque with a remodeling index > 1.10 and a mean CT density value < 30 HU...
October 24, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29040707/effective-radiation-dose-in-the-wrist-resulting-from-a-radiographic-device-two-cbct-devices-and-one-msct-device-a-comparative-study
#15
Juha Koivisto, Maureen van Eijnatten, Timo Kiljunen, Xie-Qi Shi, Jan Wolff
The objective of the present study was to assess and compare the effective doses in the wrist region resulting from conventional radiography device, multislice computed tomography (MSCT) device and two cone beam computed tomography (CBCT) devices using MOSFET dosemeters and a custom made anthropomorphic RANDO phantom according to the ICRP 103 recommendation. The effective dose for the conventional radiography was 1.0 μSv. The effective doses for the NewTom 5 G CBCT ranged between 0.7 μSv and 1.6 μSv, for the Planmed Verity CBCT 2...
October 13, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/29039828/-clinical-laboratory-and-instrumental-criteria-for-myocarditis-established-in-comparison-with-myocardial-biopsy-a-non-invasive-diagnostic-algorithm
#16
O V Blagova, Yu V Osipova, A V Nedostup, E A Kogan, V A Sulimov
AIM: To determine the diagnostic value of different clinical, laboratory, and instrumental signs in the diagnosis of myocarditis in patients with the picture of idiopathic arrhythmias, dilated cardiomyopathy (DCM) and in a comparison group when comparing with myocardial morphological examination. SUBJECTS AND METHODS: A study group included 100 patients (35 women; mean age, 44.7±12.5 years) with idiopathic arrhythmias (n=20) and DCM as a syndrome (n=100). All underwent myocardial morphological examination: endomyocardial biopsy (EMB) (n=71), intraoperative biopsy (n=13), study of the explanted heart (n=6), and autopsy (n=11)...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28988068/decapitation-in-reality-and-fine-art-a-review
#17
REVIEW
Valentina Nikolić, Slobodan Savić, Vaso Antunović, Slobodan Marinković, Charlotte Andrieux, Irina Tomić
The aim of our study was to examine all types of decapitation from forensic literature, including our own case, and to analyze the presentation of beheading in fine art, popular literature, and music. To do this, over 200 scientific articles in regard to decapitation were analyzed, as well as more than 10,000 artworks, and several hundreds of literary works and music pieces. In addition, a macroscopic examination of a decapitated victim was performed. Finally, a multislice computerized tomography (MSCT) examination of the cervical spine in two live volunteers was undertaken to present the osteological relationships...
September 27, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28983492/comparison-of-the-ctdi-and-aapm-report-no-111-methodology-in-adult-adolescent-and-child-head-phantoms-for-msct-and-dental-cbct-scanners
#18
Celina L Li, Yogesh Thakur, Nancy L Ford
This study investigates the dosimetry methodology proposed by the American Association of Physicists in Medicine (AAPM) task group 111 and compares with the computed tomography dose index (CTDI) method and the SEDENTEXCT DI method on one clinical multislice CT and two dental cone beam CT (CBCT) scanners using adult, adolescent, and child head phantoms. Following the AAPM method, the normalized (100 mAs) equilibrium doses ([Formula: see text]) for Toshiba Aquilion One MSCT computed using dose measurements from the central hole of the phantom ([Formula: see text]), the peripheral hole of the phantom, ([Formula: see text]), and by the [Formula: see text] equation ([Formula: see text]) are in the range from 20 to 25 mGy...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28942233/comparison-of-radiation-doses-imparted-during-128-256-384-multislice-ct-scanners-and-cone-beam-computed-tomography-for-intra-and-perioperative-cochlear-implant-assessment
#19
N Guberina, U Dietrich, D Arweiler-Harbeck, M Forsting, A Ringelstein
PURPOSE: To examine radiation-doses imparted during multislice (MSCT) and cone-beam computed-tomography (CBCT) for perioperative examination of cochlear-implant insertion. METHODS: Radiation-doses were assessed during standardized petrous-bone CT-protocols at different MSCT ((I) single-source CT-scanner Somatom-Definition-AS+, (II) 2nd generation of dual-source CT-scanner Somatom-Definition-Flash, (III) 3rd generation of dual-source CT-scanner Somatom-Force and at the CBCT Ziehm-Vision-RFD3D ((IV) (a) RFD-3D (Standard-modifier), (b) RFD-3D (Low-dose-modifier))...
September 19, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28938228/sex-determination-from-chest-measurements-in-a-sample-of-egyptian-adults-using-multislice-computed-tomography
#20
Ragaa T Darwish, Manal H Abdel-Aziz, Abdel-Aziz M El Nekiedy, Zahraa K Sobh
BACKGROUND: In forensic sciences to determine one's sex is quite important during the identity defining stage. The reliability of sex determination depends on the completeness of the remains and the degree of sexual dimorphism inherent in the population. Computed Tomography is the imaging modality of choice for two- and three-dimensional documentation and analysis of many autopsy findings. OBJECTIVE: The aim of the present work was to assess the reliability of Three-dimensional Multislice Computed Tomography (3D MSCT) to determine sexual dimorphism from certain chest measurements; sternum and fourth rib using the 3D MSCT and to develop equations for sex determination from these bones among adult Egyptians sample...
September 11, 2017: Journal of Forensic and Legal Medicine
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