keyword
MENU ▼
Read by QxMD icon Read
search

multislice CT

keyword
https://www.readbyqxmd.com/read/28224428/a-new-method-of-3-dimensional-localization-of-intraocular-foreign-bodies-using-ct-imaging-a-role-of-optic-nerve
#1
Qi Yao, Han-Ping Wu, Bin Xiong, Ping Han, Chuan-Sheng Zheng
Computed tomography (CT) is considered the most sensitive method for the detection of intraocular foreign bodies (IOFBs). The purpose of this study was to evaluate a new method of 3-dimentional (3D) localization of IOFBs that takes advantage of the anatomical structure of the optic nerve and to assess the clinical outcomes using this new method. Twenty-two trauma patients with IOFBs or suspected IOFBs admitted to our hospital were scanned with multislice CT (MSCT) between July and December 2003. All scanning was performed with a 16-row spiral CT in axial plane using a sequential scanning protocol...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28213948/hourglass-shaped-right-ventricle-and-localized-constrictive-pericarditis
#2
Alper Karakus, Hasan Ari, Sencer Camci, Selma Ari, Ahmet Tutuncu, Mehmet Melek
Constrictive pericarditis is characterized by thick pericardial fibrosis and frequent calcification that progressively impairs diastolic filling of the heart. The diagnosis of constrictive pericarditis has been challenging even though multiple diagnostic modalities have been developed. The diagnosis of constructive pericarditis is especially difficult in localized constrictive pericarditis which is extremely rare. We report a case of localized constrictive pericarditis with a 3D multislice cardiac computed tomography (CT) finding of the constrictive band causing strangulation and hourglass shaping of the right ventricle...
February 18, 2017: Echocardiography
https://www.readbyqxmd.com/read/28164118/multislice-analysis-of-blood-flow-values-in-ct-perfusion-studies-of-lung-cancer
#3
Silvia Malavasi, Domenico Barone, Giampaolo Gavelli, Alessandro Bevilacqua
Objectives. Tumour heterogeneity represents a key issue in CT perfusion (CTp), where all studies are usually based on global mean or median values of perfusion maps, often computed on whole tumour. We sought to determine whether, and to what extent, such global values can be representative of tumour heterogeneity, with respect to single slices, and could be used for therapy assessment. Materials and Methods. Twelve patients with one primary non-small cell lung cancer lesion were enrolled in this study, for a total amount of 26 CTp examinations and 118 slices...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28156127/morphological-relationship-analysis-of-impacted-maxillary-canines-and-the-adjacent-teeth-on-3-dimensional-reconstructed-ct-images
#4
Yoojun Kim, Hong-Keun Hyun, Ki-Taeg Jang
OBJECTIVE: To examine whether there is a relationship between maxillary canine impaction and the morphologic characteristics of the maxillary dentition, especially the root of the lateral incisor. MATERIALS AND METHODS: In this study, we selected only patients with unilateral maxillary canine impaction to compare the morphologic characteristics of the dentition on the impaction side and the clinically normal eruption side. The sample size was decided to be 40 based on the pilot study...
February 3, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28144071/multislice-computed-tomography-and-virtual-bronchoscopy-diagnosis-of-interbronchial-fistula
#5
Venkatraman Indiran
Although tuberculosis is a rather common disease in the Indian subcontinent, tracheobronchial involvement in tuberculosis is still rare. Fistula formation between bronchi is very rare considering that only four cases have been published in the English literature. We present a case of multislice computed tomography (CT) and virtual bronchoscopy diagnosis of interbronchial fistula in a patient with tuberculosis along with a review of literature of the same. This happens to be the smallest of the interbronchial fistula identified on imaging so far and the first case from the Indian subcontinent...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28115983/an-investigation-of-bedside-laparoscopy-in-the-icu-for-cases-of-non-occlusive-mesenteric-ischemia
#6
G Cocorullo, A Mirabella, N Falco, T Fontana, R Tutino, L Licari, G Salamone, G Scerrino, G Gulotta
BACKGROUND: Acute mesenteric ischemia is a rare affection with high related mortality. NOMI presents the most important diagnostic problems and is related with the higher risk of white laparotomy. This study wants to give a contribution for the validation of laparoscopic approach in case of NOMI. METHODS: Thirty-two consecutive patients were admitted in last 10 years in ICU of Paolo Giaccone University Hospital of Palermo for AMI. Diagnosis was obtained by multislice CT and selective angiography was done if clinical conditions were permissive...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28100057/wilkie%C3%A2-s-syndrome
#7
Carlos Oliva-Fonte, Cristina Fernández Rey, Javier Pereda Rodríguez, Ana María González-Fernández
We report the case of a 14 year-old woman, who presents epigastric abdominal pain, abundant vomits and an important abdominal distension. Previously, she presented similar episodes. She has not any significant prior medical history. CT is performed and the imaging findings are consistent with Wilkie´s syndrome. Wilkie´s syndrome is a rare condition, that results from a intestinal obstruction caused by third portion duodenal compression between the abdominal aorta and the superior mesenteric artery. When the angle between both structures diminishes and the distance between the SMA and the aorta decreases (the most diagnostic value), duodenal obstruction occurs...
January 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28069288/diagnostic-imaging-of-the-hepatobiliary-system-an-update
#8
REVIEW
Angela J Marolf
Recent advances in diagnostic imaging of the hepatobiliary system include MRI, computed tomography (CT), contrast-enhanced ultrasound, and ultrasound elastography. With the advent of multislice CT scanners, sedated examinations in veterinary patients are feasible, increasing the utility of this imaging modality. CT and MRI provide additional information for dogs and cats with hepatobiliary diseases due to lack of superimposition of structures, operator dependence, and through intravenous contrast administration...
January 6, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/27970094/tct-714-incidental-findings-in-multislice-ct-for-procedural-planning-in-transcatheter-aortic-valve-implantation-prevalence-clinical-relevance-and-outcome
#9
Teresa Trenkwalder, Anna Lena Lahmann, Costanza Pellegrini, Magdalena Nowicka, Tobias Rheude, N Patrick Mayr, Sabine Bleiziffer, Ruediger Lange, Heribert Schunkert, Markus Kasel, Adnan Kastrati, Oliver Husser, Martin Hadamitzky, Christian Hengstenberg
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27908164/comparison-of-low-contrast-detectability-between-two-ct-reconstruction-algorithms-using-voxel-based-3d-printed-textured-phantoms
#10
Justin Solomon, Alexandre Ba, François Bochud, Ehsan Samei
PURPOSE: To use novel voxel-based 3D printed textured phantoms in order to compare low-contrast detectability between two reconstruction algorithms, FBP (filtered-backprojection) and SAFIRE (sinogram affirmed iterative reconstruction) and determine what impact background texture (i.e., anatomical noise) has on estimating the dose reduction potential of SAFIRE. METHODS: Liver volumes were segmented from 23 abdominal CT cases. The volumes were characterized in terms of texture features from gray-level co-occurrence and run-length matrices...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907931/coronary-artery-anomalies-diagnosis-and-classification-based-on-cardiac-ct-and-mri-cmr-from-alcapa-to-anomalies-of-termination
#11
Philipp Heermann, Walter Heindel, Christoph Schülke
Background Coronary artery anomalies encompass a clinically and anatomically variable spectrum including physiological variants and pathophysiologically relevant anomalies. The majority of the variants has no hemodynamic relevance and is often detected accidentally. The recognition of the rare and relevant anomalies that cause either relevant shunt volumes leading to myocardial ischemia or ventricular tachyarrhythmias with the risk of sudden cardiac death is of major importance. Methods This review is based on a literature search in PubMed conducted using the key words "coronary artery" and/or "anomaly" and/or "anomalous origin" and/or "myocardial bridging" and/or "coronary artery fistula" and/or "Bland-White-Garland" and/or "ALCAPA"...
January 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27878800/a-single-centre-experience-of-the-implementation-of-adrenal-vein-sampling-procedure-the-impact-on-the-diagnostic-work-up-in-primary-aldosteronism
#12
Jacek Kądziela, Aleksander Prejbisz, Ilona Michałowska, Sylwia Kołodziejczyk-Kruk, Leo Schultze Kool, Marek Kabat, Hanna Janaszek-Sitkowska, Sadegh Toutounchi, Zbigniew Gałązka, Urszula Ambroziak, Tomasz Bednarczuk, Dorota Ptasińska-Wnuk, Michał Hoffmann, Magdalena Januszewicz, Andrzej Januszewicz, Adam Witkowski
BACKGROUND: Primary aldosteronism is one of the most common causes of secondary hypertension. Adrenal vein sampling (AVS) remains a "gold standard" procedure in differentiation between unilateral (adenoma) and bilateral (hyperplasia) disease. AIM: The aim of this study was to present our single-centre experience in establishing and implementating the AVS procedure. METHODS: All patients had primary aldosteronism confirmed in a salt-infusion test...
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/27847694/contribution-of-low-dose-computerized-tomography-with-digital-multiplanar-reconstructions-in-thoracic-epidurography-and-correlation-with-sensory-block-in-postoperative-analgesia
#13
Cyrus Motamed, Karin Chedevergne, Frederic Deschamps, Lambros Tselikas, Christian Jayr
BACKGROUND: The level of sensory block in postoperative epidural analgesia has been correlated with conventional contrast epidurography in only one study, while low-dose CT scan epidurography with multiplanar reconstruction may be a better tool for this purpose. OBJECTIVES: The primary objective of this study was to evaluate, by CT imaging and digital multiplanar reconstruction, the spread and distribution of contrast medium injected into the epidural space through a catheter inserted in a low thoracic position for postoperative analgesia...
October 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/27846460/coronary-risk-stratification-of-patients-undergoing-surgery-for-valvular-heart-disease
#14
Rasmus Bo Hasselbalch, Thomas Engstrøm, Mia Pries-Heje, Merete Heitmann, Frants Pedersen, Morten Schou, Hans Mickley, Hanne Elming, Rolf Steffensen, Lars Køber, Kasper Iversen
BACKGROUND: Multislice computed tomography (MSCT) is a non-invasive, less expensive, low-radiation alternative to coronary angiography (CAG) prior to valvular heart surgery. MSCT has a high negative predictive value for coronary artery disease (CAD) but previous studies of patients with valvular disease have shown that MSCT, as the primary evaluation technique, lead to re-evaluation with CAG in about a third of cases and it is therefore not recommended. If a subgroup of patients with low- to intermediate risk of CAD could be identified and examined with MSCT, it could be cost-effective, reduce radiation and the risk of complications associated with CAG...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27829015/imaging-of-orthotopic-glioblastoma-xenografts-in-mice-using-a-clinical-ct-scanner-comparison-with-micro-ct-and-histology
#15
Stefanie Kirschner, Bettina Mürle, Manuela Felix, Anna Arns, Christoph Groden, Frederik Wenz, Andreas Hug, Gerhard Glatting, Martin Kramer, Frank A Giordano, Marc A Brockmann
PURPOSE: There is an increasing need for small animal in vivo imaging in murine orthotopic glioma models. Because dedicated small animal scanners are not available ubiquitously, the applicability of a clinical CT scanner for visualization and measurement of intracerebrally growing glioma xenografts in living mice was validated. MATERIALS AND METHODS: 2.5x106 U87MG cells were orthotopically implanted in NOD/SCID/ᵞc-/- mice (n = 9). Mice underwent contrast-enhanced (300 μl Iomeprol i...
2016: PloS One
https://www.readbyqxmd.com/read/27826651/do-we-still-need-autopsy-in-times-of-modern-multislice-computed-tomography-missed-diagnoses-in-the-emergency-room
#16
S A Euler, T Kastenberger, R Attal, M Rieger, M Blauth, M Petri
INTRODUCTION: In spite of increasing quality of emergency room (ER) assessment in trauma patients and improved accuracy of modern multislice computed tomography (MSCT), the number of potentially missed diagnoses is still controversial. The aim of this study was to compare the initial findings of ER assessment and MSCT to the findings during autopsy in trauma patients not surviving the first 48 h after admission. We hypothesized that autopsy was more accurate than MSCT in diagnosing potentially fatal diagnoses...
January 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27822642/bone-age-estimation-based-on-multislice-computed-tomography-study-of-the-scapula
#17
Florence Nougarolis, Fatima-Zohra Mokrane, Nicolas Sans, Hervé Rousseau, Fabrice Dedouit, Norbert Telmon
Progress in medical imaging has opened new areas of research in forensic anthropology, especially in the context of the study of bone age assessment. The study of bone age has become a useful tool for age estimation at death or age of young adult migrants in an anthropological context. We retrospectively evaluated multislice computed tomography (MSCT) explorations focused on scapulae of 232 individuals (123 males; 109 females) aged between 8 and 30 years old. Computed tomography (CT) scans were viewed in axial and multiplanar reconstructed images using OsiriX 5...
March 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27806588/source-modeling-for-monte-carlo-dose-calculation-of-ct-examinations-with-a-radiotherapy-treatment-planning-system
#18
Hans-Erik Källman, Rickard Holmberg, Jonas Andersson, Love Kull, Erik Tranéus, Anders Ahnesjö
PURPOSE: Radiation dose to patients undergoing examinations with Multislice Computed Tomography (MSCT) as well as Cone Beam Computed Tomography (CBCT) is a matter of concern. Risk management could benefit from efficient replace rational dose calculation tools. The paper aims to verify MSCT dose calculations using a Treatment Planning System (TPS) for radiotherapy and to evaluate four different variations of bow-tie filter characterizations for the beam model used in the dose calculations...
November 2016: Medical Physics
https://www.readbyqxmd.com/read/27803968/preoperative-3d-and-4d-ct-imaging-using-640-multislice-ct-640-msct-in-diagnosis-of-female-urethral-diverticulum
#19
Yong-Xian Zhao, Jia-Ping Wang, Jiong-Ming Li, Tao Chen, Cong-Wen Mao, Jian-He Liu, Yun-Shan Su, Ke-Wei Fang
OBJECTIVE: To determine the sensitivity and specificity of 640-Multislice CT (640-MSCT) in diagnosing the female UD. MATERIALS AND METHODS: We investigated 16 patients with symptomatic UDs preoperatively in our hospital from August 2010 to March 2016. The patients' average age was 38.8 years. All patients were performed 640-MSCT of pelvis; then, 3D and 4D images were reconstructed preoperatively. RESULTS: In 3D and 4D-CT images, out of 16 patients, thirteen patients had one ostium, two had 2 ostia and one had 3 ostia...
November 1, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27759600/scout-based-automated-tube-potential-selection-technique-kv-assist-in-enhanced-chest-computed-tomography-effects-on-radiation-exposure-and-image-quality
#20
Meng Li, Shichao Feng, Ning Wu, Li Zhang
OBJECTIVE: The aim of our study was to assess radiation dose reduction and image quality for enhanced chest CT examinations with a scout-based automated tube potential selection technique (kV Assist) compared with a standard 120-kV protocol. METHODS: Prospective study of enhanced chest CT examinations was performed in 100 consecutive patients with kV Assist and in 100 consecutive patients with conventional 120-kV protocol on a multislice CT (Discovery CT750 HD)...
October 18, 2016: Journal of Computer Assisted Tomography
keyword
keyword
3509
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"