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https://www.readbyqxmd.com/read/28717963/the-role-of-multislice-computed-tomography-of-the-costal-cartilage-in-adult-age-estimation
#1
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
#2
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...
July 13, 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28497187/radiation-induced-skin-injuries-to-patients-what-the-interventional-radiologist-needs-to-know
#13
Werner Jaschke, Matthias Schmuth, Annalisa Trianni, Gabriel Bartal
For a long time, radiation-induced skin injuries were only encountered in patients undergoing radiation therapy. In diagnostic radiology, radiation exposures of patients causing skin injuries were extremely rare. The introduction of fast multislice CT scanners and fluoroscopically guided interventions (FGI) changed the situation. Both methods carry the risk of excessive high doses to the skin of patients resulting in skin injuries. In the early nineties, several reports of epilation and skin injuries following CT brain perfusion studies were published...
August 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28467098/imaging-features-of-primary-renal-lymphoma
#14
Qingqiang Zhu, Wenrong Zhu, Jingtao Wu, Wenxin Chen
Background Cases of primary renal lymphoma (PRL) are quite rare and are often mistaken for renal cell carcinoma. Purpose To determine the multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) characteristics of PRL. Materials and Methods Twenty-three patients with PRL were identified by CT and MRI, and their tumor characteristics were assessed. Results Tumors exhibited single or multifocal nodules (n = 19) and diffuse renal enlargement (n = 4). Twenty-two tumors exhibited an infiltrative appearance...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28447964/a-rare-cause-of-acute-gastrointestinal-hemorrhage-ileal-lipoma-case-report
#15
E Manna, Fabrizio Maria Frattaroli, E Polettini, Aldo Nunziale, Giuseppe Pappalardo
Primary small bowel tumors account for 1-6% of all Gastrointestinal (G.I.) tract malignancies. Among these pedunculated lipomas are unusual. We report a case of a 66-year-old male with a history of G.I. hemorrhage and acute anemia, negative upper and lower endoscopies and a pedunculated lipoma in distal ileum, revealed by CT enterography. The patient was successfully treated by open surgery. Patients with G.I. hemorrhage and negative upper and lower endoscopies need an accurate evaluation of small bowel. Multislice CT enterography or Magnetic Resonance enteroclysis/ enterography represent the fastest and more accurate tools to obtain an exhaustive evaluation of small bowel...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28393820/comparison-of-gray-values-of-cone-beam-computed-tomography-with-hounsfield-units-of-multislice-computed-tomography-an-in-vitro-study
#16
Sanjana Patrick, N Praveen Birur, Keerthi Gurushanth, A Shubhasini Raghavan, Shubha Gurudath
PURPOSE: Hounsfield unit (HU) provides a quantitative evaluation of bone density. The assessment of bone density is essential for successful treatment plan. Although, multislice computed tomography (MSCT) is considered as gold standard in evaluating bone density, cone-beam computed tomography (CBCT) is frequently used in dentomaxillofacial imaging due to lower radiation dose, less complex device, and images with satisfactory resolution. AIMS AND OBJECTIVES: The aim of this study is to determine and compare the gray value and HU value of hypodense and hyperdense structures on CBCT and MSCT, respectively...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28343249/intraobserver-and-interobserver-variability-in-ct-angiography-and-mr-angiography-measurements-of-the-size-of-cerebral-aneurysms
#17
Hye Jeong Kim, Dae Young Yoon, Eun Soo Kim, Hyung Jin Lee, Hong Jun Jeon, Jong Young Lee, Byung-Moon Cho
PURPOSE: Accurate and reliable measurement of aneurysm size is important for treatment planning. The purpose of this study was to determine intraobserver and interobserver variability of CTA and MRA for measurement of the size of cerebral aneurysms. METHODS: Thirty patients with 33 unruptured cerebral aneurysms (saccular, >3 mm in their maximal dimension, with no daughter sacs or lobulations) who underwent 256-row multislice CTA, 3-D TOF MRA at 3.0T, and 3D rotational angiography (3DRA) were retrospectively analyzed...
March 25, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28331826/pulmonary-ground-glass-opacity-computed-tomography-features-histopathology-and-molecular-pathology
#18
REVIEW
Jian-Wei Gao, Stefania Rizzo, Li-Hong Ma, Xiang-Yu Qiu, Arne Warth, Nobuhiko Seki, Mizue Hasegawa, Jia-Wei Zou, Qian Li, Marco Femia, Tang-Feng Lv, Yong Song
The incidence of pulmonary ground-glass opacity (GGO) lesions is increasing as a result of the widespread use of multislice spiral computed tomography (CT) and the low-dose CT screening for lung cancer detection. Besides benign lesions, GGOs can be a specific type of lung adenocarcinomas or their preinvasive lesions. Evaluation of pulmonary GGO and investigation of the correlation between CT imaging features and lung adenocarcinoma subtypes or driver genes can be helpful in confirming the diagnosis and in guiding the clinical management...
February 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28330714/rapid-maxillary-expansion-in-mouth-breathers-a-short-term-skeletal-and-soft-tissue-effect-on-the-nose
#19
Fauze Ramez Badreddine, Reginaldo R Fujita, Fabio Eduardo Maiello Monteiro Alves, Mario Cappellette
INTRODUCTION: Rapid maxillary expansion (RME) can change the form and function of the nose. The skeletal and soft tissue changes can influence the esthetics and the stability of the results obtained by the RME. OBJECTIVE: The aim of this retrospective study was to evaluate the short-term effects of RME on the skeletal and soft tissue structures of the nose, in mouth-breathing patients, using a reliable and reproducible, but simple methodology, with the aid of computed tomography...
February 24, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28327698/accuracy-and-reliability-of-different-cone-beam-computed-tomography-cbct-devices-for-structural-analysis-of-alveolar-bone-in-comparison-with-multislice-ct-and-micro-ct
#20
COMPARATIVE STUDY
Jeroen Van Dessel, Laura Ferreira Pinheiro Nicolielo, Yan Huang, Walter Coudyzer, Benjamin Salmon, Ivo Lambrichts, Reinhilde Jacobs
OBJECTIVE: The aim of this study was to assess whether cone beam computed tomography (CBCT) may be used for clinically reliable alveolar bone quality assessment in comparison to its clinical alternatives, multislice computed tomography and the gold standard (micro-CT). MATERIALS AND METHODS: Six dentate mandibular bone samples were scanned with seven CBCT devices (ProMax 3D Max, NewTom GiANO, Cranex 3D, 3D Accuitomo 170, Carestream 9300, Scanora 3D, I-CAT Next generation), one micro-CT scanner (SkyScan 1174) and one MSCT machine (Somatom Definition Flash) using two protocols (standard and high-resolution)...
2017: European Journal of Oral Implantology
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