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https://www.readbyqxmd.com/read/28936605/sex-determination-of-a-tunisian-population-by-ct-scan-analysis-of-the-skull
#1
Malek Zaafrane, Mehdi Ben Khelil, Ines Naccache, Ekbel Ezzedine, Frédéric Savall, Norbert Telmon, Najla Mnif, Moncef Hamdoun
It is widely accepted that the estimation of biological attributes in the human skeleton is more accurate when population-specific standards are applied. With the shortage of such data for contemporary North African populations, it is duly required to establish population-specific standards. We present here the first craniometric standards for sex determination of a contemporary Tunisian population. The aim of this study was to analyze the correlation between sex and metric parameters of the skull in this population using CT scan analysis and to generate proper reliable standards for sex determination of a complete or fragmented skull...
September 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28932562/standardized-uptake-value-and-radiological-density-attenuation-as-predictive-and-prognostic-factors-in-patients-with-solitary-pulmonary-nodules-our-experience-on-1-592-patients
#2
Duilio Divisi, Mirko Barone, Luca Bertolaccini, Gaetano Rocco, Piergiorgio Solli, Roberto Crisci
BACKGROUND: Multislice computed tomography (MSCT) increased detection of solitary pulmonary nodules (SPNs), changing the management based on radiological and clinical factors. When 18-fluorine fluorodeoxyglucose positron emission tomography combined with computed tomography ((18)F-FDG-PET/CT) was considered for the evaluation of nodules, the maximum standardized uptake value (SUVmax) more than 2.5 is used frequently as a cut off for malignancy. The purpose of this study is to evaluate SUVmax PET/CT and pulmonary attenuation patterns at MSCT in patients with SPN according to morphological and pathological characteristics of the lesion...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28834965/response-evaluation-of-malignant-liver-lesions-after-tace-sirt-comparison-of-manual-and-semi-automatic-measurement-of-different-response-criteria-in-multislice-ct
#3
Anna Janina Höink, Christoph Schülke, Raphael Koch, Annika Löhnert, Sara Kammerer, Rasmus Fortkamp, Walter Heindel, Boris Buerke
Purpose To compare measurement precision and interobserver variability in the evaluation of hepatocellular carcinoma (HCC) and liver metastases in MSCT before and after transarterial local ablative therapies. Materials and Methods Retrospective study of 72 patients with malignant liver lesions (42 metastases; 30 HCCs) before and after therapy (43 SIRT procedures; 29 TACE procedures). Established (LAD; SAD; WHO) and vitality-based parameters (mRECIST; mLAD; mSAD; EASL) were assessed manually and semi-automatically by two readers...
August 23, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28833419/multislice-spiral-ct-angiography-for-evaluation-of-acute-aortic-syndrome
#4
De-Li Zhao, Xin-Ding Liu, Cheng-Lei Zhao, Hai-Ting Zhou, Guo-Kun Wang, Hong-Wei Liang, Jin-Ling Zhang
OBJECTIVE: To discuss the diagnostic value of multislice CT angiography (MSCTA) in acute aortic syndrome (AAS). MATERIALS AND METHODS: The clinical and imaging data of 36 cases diagnosed as AAS by MSCTA were collected. The manifestations of the MSCTA images were reviewed retrospectively, and the average x-ray dose was calculated. RESULTS: Among 36 AAS cases, 16 cases had aortic dissection (AD), 8 cases had penetrating atherosclerotic ulcer (PAU), 7 cases had intramural hematoma (IMH), and 5 cases had unstable thoracic aneurysm (UTA)...
August 22, 2017: Echocardiography
https://www.readbyqxmd.com/read/28791822/a-coronary-proatherosclerotic-marker-pregnancy-associated-plasma-protein-a-and-its-association-with-coronary-calcium-score-and-carotid-intima-media-thickness
#5
Abdullah Guven, Bora Demircelik, Ozgul Malcok Gurel, Okan Er, Halil Ibrahim Aydin, Alper Bozkurt
BACKGROUND: Atherosclerosis, a chronic inflammatory disorder of the arteries, is responsible for the greatest number of deaths in westernized societies, with numbers increasing at a marked rate in developing countries. Coronary calcium score (CCS), carotid intima-media thickness (CIMT) and pregnancy-associated plasma protein A (PAPP-A) are predictors for the development of atherosclerosis. OBJECTIVES: This study was aimed to investigate the relationship between CCS, CIMT and PAPP-A for earlier diagnosis of atherosclerosis...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28765021/re-evaluation-of-classic-posterior-ventricular-puncture-sites-employing-a-three-dimensional-brain-simulation-model
#6
Keyvan Tayebi Meybodi, Ehsan Hoseinzadeh, Mostafa Ahmadi, Mohammad Taghvaei, Hooshang Saberi
OBJECTIVE: To revalidate the craniometric dimensions of classic posterior burr holes for ventricular catheter insertion in hydrocephalic patients, based on ideal catheter position on 3D simulated computed tomographic (CT) reconstruction model of the ventricles. METHODS: Fifteen hydrocephalic patients underwent multislice, thin-cut CT, in order to determine the Cartesian coordinates of a new point for optimal posterior ventricular catheterization, geomatrically. Then, success rate for ventricular puncture and the thickness of brain traversed by the catheter with 3 approaches (Frazier, Keen, and the suggested point) were compared...
July 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28761682/a-comparative-study-of-different-imaging-modalities-for-successful-percutaneous-left-atrial-appendage-closure
#7
Danny Hf Chow, Gintautas Bieliauskas, Fadi J Sawaya, Oscar Millan-Iturbe, Klaus F Kofoed, Lars Søndergaard, Ole De Backer
OBJECTIVES: Accurate sizing of the left atrial appendage (LAA) is essential when performing percutaneous LAA closure. This study aimed to compare different LAA imaging modalities and sizing methods in order to obtain successful LAA closure. BACKGROUND: Percutaneous LAA closure is an increasingly used treatment strategy to prevent stroke in patients with atrial fibrillation. LAA sizing has typically been done by 2D-transoesophageal echocardiography (TEE). METHODS: Patients who had a preprocedural TEE and preprocedural and postprocedural multislice CT (MSCT) were identified...
2017: Open Heart
https://www.readbyqxmd.com/read/28754439/myocardial-blood-flow-reserve-is-impaired-in-patients-with-aortic-valve-calcification-and-unobstructed-epicardial-coronary-arteries
#8
Karen Nel, Michael C Y Nam, Chris Anstey, Christopher J Boos, Edward Carlton, Roxy Senior, Juan Carlos Kaski, Ahmed Khattab, Delva Shamley, Christopher D Byrne, Tony Stanton, Kim Greaves
BACKGROUND: Although calcific aortic valve disease (CAVD) is associated with coronary atherosclerosis, it is not known whether early CAVD is associated with coronary microcirculatory dysfunction (CMD). We sought to investigate the relationship between myocardial blood flow reserve (MBFR) - a measure of CMD, and early CAVD in the absence of obstructive epicardial coronary artery disease. We also determined whether this relationship was independent of coronary artery disease (CAD) and hs-CRP, a marker of systemic inflammation...
June 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28717963/the-role-of-multislice-computed-tomography-of-the-costal-cartilage-in-adult-age-estimation
#9
Kui Zhang, Fei Fan, Meng Tu, Jing-Hui Cui, Jing-Song Li, Zhao Peng, Zhen-Hua Deng
To establish population-specific age estimation models in adults from costal cartilage for contemporary Chinese by using three-dimensional volume-rendering technique. Five hundred and twelve individuals (254 females and 258 males) with documented ages between 20 and 85 years were retrospectively included. Their clinical CT examinations (1 mm slice thickness) were used to develop the sex-specific age prediction model. A validation sample comprising 26 female and 24 male individuals was then used to test the predictive accuracy of the established models...
July 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28708797/role-of-multislice-ct-imaging-in-predicting-the-visibility-of-the-round-window-in-pediatric-cochlear-implantation
#10
Yasser A Fouad, Ahmad Shaker Elaassar, Mohammad Waheed El-Anwar, Ebrahim Sabir, Ahmad Abdelhamid, Mai Ghonimy
BACKGROUND: High-resolution computed tomography (HRCT) magnifies the role of preoperative imaging for detailed inner and middle ear anatomical information and enhances more efforts for better dependent correlation and measurements of round window (RW). OBJECTIVE: To find an applicable way by HRCT imaging for the prediction of the visibility of the RW during cochlear implantation (CI) surgery. METHODS: Five radiologic measurements were performed on the axial HRCT and these measurements were correlated with the degree of RW visibility after performing posterior tympanotomy during CI surgery...
September 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28629625/what-exactly-regression-of-atherosclerosis-or-foreign-body-reaction-with-hyaline-arteriosclerosis-drives-transient-scaffolding-of-coronary-arteries-a-pooled-analysis-of-observational-absorb-studies-with-a-serial-multimodality-imaging-substudy-of-absorb-cohort
#11
Alexander N Kharlamov, John A Feinstein, John A Cramer, John A Boothroyd
OBJECTIVES: We aimed to estimate the trends of the artery remodeling after transient scaffolding. BACKGROUND: At least 2.62% reduction of the per cent atheroma volume (PAV) or plaque burden (PB) performed in ABSORB B trial at 60months. METHODS: The detailed multiple serial imaging evaluation was performed by intravascular ultrasound (IVUS) in comparison with quantitative coronary angiography (QCA), multislice CT (MSCT) and optical coherence tomography (OCT) thru 24months in the ABSORB cohort B1 trial (n=45) with the pooled analysis in ABSORB A and B trials (n=131)...
June 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28616615/the-predictive-value-of-biochemical-parameters-in-evaluating-patients-with-abdominal-trauma-the-new-scoring-system
#12
Ekrem Musalar, Murat Ersel, Funda Karbek Akarca, Güçlü Selahattin Kıyan, Özge Can
AIM: The aim of this study was to investigate the contribution of non-invasively and rapidly obtained biochemical parameter results to the diagnosis and follow-up of intraabdominal injuries in multitrauma patients. MATERIAL AND METHODS: A total of 2604 multitrauma patients who were treated following their referral to our emergency department between January 2009 and January 2012 were retrospectively reviewed. A logistic regression analysis was used in the risk assessment...
June 2017: Turkish Journal of Emergency Medicine
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
#13
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
https://www.readbyqxmd.com/read/28599687/diagnostic-accuracy-of-multislice-ct-scan-in-the-detection-of-occult-cervical-lymph-node-metastasis-in-head-and-neck-cancers
#14
Rubia Salman, Munawar Hussain, Syed Omair Adil
OBJECTIVE: To determine the diagnostic accuracy of CECTin detecting occult cervical lymph node metastasis in primary head and neck squamous cell carcinoma (SCC) patients with clinically negative cervical nodes, keeping histopathology as gold standard. STUDY DESIGN: Cross-sectional analytical study. PLACE AND DURATION OF STUDY: Department of Radiology, Dow International Medical College, DUHS, Karachi from October 2015 till April 2016. METHODOLOGY: Two hundred patients of head and neck squamous cell carcinoma patients with clinically negative cervical nodes were enrolled at Department of Radiology, Dow International Medical College, DUHS, Karachi from October 2015 till April 2016...
May 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28574627/ct-versus-mr-techniques-in-the-detection-of-cervical-artery-dissection
#15
Uta Hanning, Peter B Sporns, Meilin Schmiedel, Erich B Ringelstein, Walter Heindel, Heinz Wiendl, Thomas Niederstadt, Ralf Dittrich
BACKGROUND: Spontaneous cervical artery dissection (sCAD) is an important etiology of juvenile stroke. The gold standard for the diagnosis of sCAD is convential angiography. However, magnetic resonance imaging (MRI)/MR angiography (MRA) and computed tomography (CT)/CT angiography (CTA) are frequently used alternatives. New developments such as multislice CT/CTA have enabled routine acquisition of thinner sections with rapid imaging times. The goal of this study was to compare the capability of recent developed 128-slice CT/CTA to MRI/MRA to detect radiologic features of sCAD...
June 2, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28562377/the-value-of-18f-dopa-pet-ct-in-patients-with-medullary-thyroid-carcinoma-and-increased-calcitonin-values
#16
Anja T Golubić, Eva Pasini Nemir, Marijan Žuvić, Andrea Mutvar, Sanja Kusačić Kuna, Marija Despot, Tatjana Samardžić, Dražen Huić
AIM: The aim of this prospective observational study was to examine the benefit of a fluorine-18-L-dihydroxyphenylalanine (F-DOPA) PET/computed tomography (CT) scan in patients with medullary thyroid carcinoma (MTC) in terms of increased calcitonin levels. PATIENTS AND METHODS: Twenty-eight MTC patients after initial total thyreoidectomy with increasing follow-up calcitonin levels suggestive for active disease after negative conventional imaging findings (neck ultrasound or thorax, abdomen, pelvis multislice computed tomography as standard imaging) were scanned using F-DOPA PET/CT from November 2012 to April 2016...
May 30, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28540096/intra-articular-osteoid-osteoma-as-a-cause-of-anteromedial-knee-pain
#17
Ergin Sagtas, Kemal Gokkus, Ahmet Turan Aydin
A 32-year-old male patient presented to our clinic with chronic left knee pain that was ongoing for about 1.5 years. The patient visited several times our clinic and the other clinics; conservative treatment (including rest, knee brace, and ice application with NSAIDs) was recommended by various different doctors. The anamnesis, physical examination, and plain radiography were nonspecific. Early MRI findings mislead us to believe it is bone marrow edema. One and half years with noneffective treatment, the knee pain persisted...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28533960/body-composition-estimation-from-selected-slices-equations-computed-from-a-new-semi-automatic-thresholding-method-developed-on-whole-body-ct%C3%A2-scans
#18
Alizé Lacoste Jeanson, Ján Dupej, Chiara Villa, Jaroslav Brůžek
BACKGROUND: Estimating volumes and masses of total body components is important for the study and treatment monitoring of nutrition and nutrition-related disorders, cancer, joint replacement, energy-expenditure and exercise physiology. While several equations have been offered for estimating total body components from MRI slices, no reliable and tested method exists for CT scans. For the first time, body composition data was derived from 41 high-resolution whole-body CT scans. From these data, we defined equations for estimating volumes and masses of total body AT and LT from corresponding tissue areas measured in selected CT scan slices...
2017: PeerJ
https://www.readbyqxmd.com/read/28520778/texture-analysis-using-proton-density-and-t2-relaxation-in-patients-with-histological-usual-interstitial-pneumonia-uip-or-nonspecific-interstitial-pneumonia-nsip
#19
Maria T A Buzan, Andreas Wetscherek, Claus Peter Heussel, Michael Kreuter, Felix J Herth, Arne Warth, Hans-Ulrich Kauczor, Carmen Monica Pop, Julien Dinkel
OBJECTIVES: The purpose of our study was to assess proton density (PD) and T2 relaxation time of usual interstitial pneumonia (UIP) and nonspecific interstitial pneumonia (NSIP) and to evaluate their utility in differentiating the two patterns. Furthermore, we aim to investigate whether these two parameters could help differentiate active-inflammatory and stable-fibrotic lesions in NSIP. METHODS: 32 patients (mean age: 69 years; M:F, 1:1) with pathologically proven disease (UIP:NSIP, 1:1), underwent thoracic thin-section multislice CT scan and 1...
2017: PloS One
https://www.readbyqxmd.com/read/28511564/head-and-neck-effective-dose-and-quantitative-assessment-of-image-quality-a-study-to-compare-cone-beam-ct-and-multislice-spiral-ct
#20
Cosimo Nardi, Cinzia Talamonti, Stefania Pallotta, Paola Saletti, Linda Calistri, Cesare Cordopatri, Stefano Colagrande
OBJECTIVES: To evaluate the effective dose and image quality of horizontal CBCT in comparison with multislice spiral CT (MSCT) in scans of the head, cervical spine, ear and dental arches. METHODS: A head and neck Alderson-Rando(®) phantom (The Phantom Laboratory, Salem, NY) equipped with 74 thermoluminescence dosemeters was exposed according to 5 different scans in CBCT and 4 different scans in MSCT. Spatial and contrast resolutions, in terms of modulation transfer function and contrast-to-noise ratio (CNR), were measured to obtain a quantitative assessment of image quality...
June 20, 2017: Dento Maxillo Facial Radiology
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