keyword
MENU ▼
Read by QxMD icon Read
search

mdct

keyword
https://www.readbyqxmd.com/read/28641319/understanding-scuba-diving-fatalities-carbon-dioxide-concentrations-in-intra-cardiac-gas
#1
Vincent Varlet, Alejandro Dominguez, Marc Augsburger, Maisy Lossois, Coraline Egger, Cristian Palmiere, Raquel Vilarino, Silke Grabherr
INTRODUCTION: Important developments in the diagnosis of scuba diving fatalities have been made thanks to forensic imaging tool improvements. Multi-detector computed tomography (MDCT) permits reliable interpretation of the overall gaseous distribution in the cadaver. However, due to post-mortem delay, the radiological interpretation is often doubtful because the distinction between gas related to the dive and post-mortem decomposition artifactual gases becomes less obvious. METHODS: We present six cases of fatal scuba diving showing gas in the heart and other vasculature...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28626797/intrathoracic-fat-measurements-using-multidetector-computed-tomography-mdct-feasibility-and-reproducibility
#2
Jadranka Stojanovska, El-Sayed H Ibrahim, Aamer R Chughtai, Elizabeth A Jackson, Barry H Gross, Jon A Jacobson, Alexander Tsodikov, Brian Daneshvar, Benjamin D Long, Thomas L Chenevert, Ella A Kazerooni
Intrathoracic fat volume, more specifically, epicardial fat volume, is an emerging imaging biomarker of adverse cardiovascular events. The purpose of this work is to show the feasibility and reproducibility of intrathoracic fat volume measurement applied to contrast-enhanced multidetector computed tomography images. A retrospective cohort study of 62 subjects free of cardiovascular disease (55% females, age = 49 ± 11 years) conducted from 2008 to 2011 formed the study group. Intrathoracic fat volume was defined as all fat voxels measuring -50 to -250 Hounsfield Unit within the intrathoracic cavity from the level of the pulmonary artery bifurcation to the heart apex...
March 2017: Tomography: a Journal for Imaging Research
https://www.readbyqxmd.com/read/28624341/extranodal-lymphoma-arising-within-the-maxillary-alveolus-a-case-report
#3
David MacDonald, Thomas Li, Siu Fai Leung, Justin Curtin, Andy Yeung, Montgomery A Martin
OBJECTIVE: Extranodal lymphomas affecting the head and neck arise infrequently within the bones of the jaws. This is a report of a symptom-free patient whose general dentist detected a radiolucency as an incidental finding on conventional radiography. STUDY DESIGN: The conventional radiography of lesions in the maxilla displayed "floating teeth" indicative of malignancy. This case was then imaged by cone beam computed tomography (CBCT), multidetector computed tomography (MDCT), and magnetic resonance imaging (MRI)...
May 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28624053/radiologic-evaluation-of-vasculobiliary-anatomy-in-the-umbilical-fissure
#4
Gu-Wei Ji, Fei-Peng Zhu, Ke Wang, Yong-Xiang Xia, Chen-Yu Jiao, Zi-Cheng Shao, Xiang-Cheng Li
BACKGROUND: Preoperative evaluation of vasculobiliary anatomy in the umbilical fissure (U-point) is pivotal for perihilar cholangiocarcinoma (PCCA) applied to right-sided hepatectomy. The purpose of our study was to review the vasculobiliary anatomy in the U-point using three-dimensional (3D) reconstruction technique, to investigate the diagnostic ability of 2D scans to evaluate anatomic variations, and to discuss its surgical implications. METHODS: A retrospective study of 159 patients with Bismuth type I, II, and IIIa PCCA, who received surgery at our institution from November 2012 to September 2016, was conducted...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28616794/long-term-survival-after-multidisciplinary-therapy-for-residual-gallbladder-cancer-with-peritoneal-dissemination-a-case-report
#5
Daisuke Kuga, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino
BACKGROUND: Although surgical resection is the only curative treatment for gallbladder cancer (GBC), concomitant peritoneal dissemination is considered far beyond the scope of resection. We report a long-term survivor with a residual GBC with multiple peritoneal disseminations who underwent an extended resection after effective chemotherapy. CASE PRESENTATION: A 59-year-old male underwent an open cholecystectomy for Mirizzi syndrome at a local hospital. Because of severe inflammation, the gallbladder was perforated during surgery, ending in a piecemeal resection...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28616562/coronary-calcification-compromises-myocardial-perfusion-irrespective-of-luminal-stenosis
#6
Michael Y Henein, Tarek Bengrid, Rachel Nicoll, Ying Zhao, Bengt Johansson, Axel Schmermund
AIM: The aim of this study was to evaluate the relationship between coronary artery calcification (CAC) assessed by multi-detector computed tomography (MDCT) and myocardial perfusion assessed by cardiac magnetic resonance imaging (CMR) in a group of symptomatic patients. METHOD: Retrospective analysis of 120 patients (age 65.1 ± 8.9 years, 88 males) who presented with atypical chest pain to Bethanien Hospital, Frankfurt, Germany, between 2007 and 2010 and who underwent CAC scoring using MDCT, CMR, and conventional coronary angiography...
March 2017: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/28610414/role-of-galectin-3-combined-with-multi-detector-contrast-enhanced-computed-tomography-in-predicting-disease-recurrence-in-patients-with-ovarian-cancer
#7
Emanuela Anastasi, Silvia Gigli, Maria Santulli, Sara Tartaglione, Laura Ballesio, Maria Grazia Porpora, Teresa Granato, Carlo Catalano, Antonio Angeloni, Lucia Manganaro
Galectin-3 (Gal-3) is an endogenous β-galactoside-binding lectin, playing an important role in the pathogenesis of multiple malignancies. Aim of the study was to evaluate in a group of patients treated for ovarian cancer (EOC), the role of Gal-3 combined with multi-detector contrast-enhanced computed tomography (MDCT), as predictor of recurrence disease. Seventeen follow-up patients with recurrent ovarian cancer and 13 follow-up patients with stable ovarian disease, who performed MDCT at one-year follow-up after cytoreductive treatment, were enrolled...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
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
#8
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/28591059/left-sinus-of-valsalva-aneurysm-ruptured-into-left-ventricle-a-case-report-of-320-multidetector-ct-findings
#9
Kyungsoo Bae, Kyung Nyeo Jeon, Hyang-Im Lee, Jeong Yoon Jang, Sung Eun Park, Kyeong Hwa Ryu, Hye Jin Baek, Bo Hwa Choi, Jin Il Moon, Soo Buem Cho
RATIONALE: Ruptured aneurysm originating from the left coronary sinus of Valsalva into the left ventricle (LV) is extremely rare. Imaging features of sinus aneurysm has been commonly reported using echocardiography or angiography. Here, we report multidetector computed tomography (MDCT) findings of left sinus of Valsalva aneurysm extending into the LV and caused severe aortic regurgitation (AR) in a 44-year-old male with latent infective endocarditis. The role of MDCT in preoperative surgical planning was also emphasized...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28590775/mdct-angiography-with-3d-rendering-a-novel-cinematic-rendering-algorithm-for-enhanced-anatomic-detail
#10
Pamela T Johnson, Robert Schneider, Carolina Lugo-Fagundo, Michael B Johnson, Elliot K Fishman
OBJECTIVE: The two most widely used postprocessing 3D tools in clinical practice are volume rendering (VR) and maximum intensity projection (MIP). With the use of current-generation MDCT, these techniques enable accurate characterization of arterial anatomy and pathology in all anatomic regions. Recently, the VR algorithm has been enhanced by the incorporation of a new lighting model. This new technique-called cinematic rendering-generates photorealistic images with the potential to more accurately depict anatomic detail...
June 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28589708/modified-continuity-equation-using-left-ventricular-outflow-tract-three-dimensional-imaging-for-aortic-valve-area-estimation
#11
Pedro Pinto Teixeira, Ruben Ramos, Pedro Rio, Luísa Moura Branco, Guilherme Portugal, Ana Abreu, Ana Galrinho, Hugo Marques, Luísa Figueiredo, Rui Cruz Ferreira
PURPOSE: Aortic valve area (AVA) is usually estimated by the continuity equation (CE) in which the left ventricular outflow tract (LVOT) area is calculated assuming a circular shape. This study aimed to compare measurements of LVOT area using standard 2D transthoracic echocardiography (2DTTE), 3D transesophageal echocardiography (3DTEE), and multidetector computed tomography (MDCT) and assess their relative impact on AVA estimated by the CE. METHODS AND RESULTS: We prospectively enrolled 60 patients with severe aortic stenosis (AS) referred for transcatheter aortic valve replacement (TAVR) who systematically underwent 2DTTE, 3DTEE, and MDCT...
June 7, 2017: Echocardiography
https://www.readbyqxmd.com/read/28589522/virtopsy-shows-a-high-status-funerary-treatment-in-an-early-18th-dynasty-non-royal-individual
#12
Robert D Loynes, Philippe Charlier, Philippe Froesch, Tobias M R Houlton, Rudy Lallo, Giancarlo Di Vella, Raffaella Bianucci
This work presents the multidisciplinary investigation of the head of Nebiri (Museo Egizio, Turin S_5109), Chief of Stables, a high status elite person from the 18th Dynasty involving MDCT, 3D brain surface and facial reconstructions accompanied by a consideration of previously presented chemical analysis of the embalming materials found in fragments of bandages used on the head and viscera (lung) found in one of the four canopic jars. Comparison of the techniques used for the cosmetic treatment of Nebiri with those used in other elite and high status non-royal persons confirms the validity of the use of the term "high status elite" in the case of Nebiri...
June 7, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28583645/diagnostic-value-of-dynamic-contrast-enhanced-ct-with-perfusion-imaging-in-the-quantitative-assessment-of-tumor-response-to-sorafenib-in-patients-with-advanced-hepatocellular-carcinoma-a-feasibility-study
#13
Davide Ippolito, Giulia Querques, Stefano Okolicsanyi, Cammillo Talei Franzesi, Mario Strazzabosco, Sandro Sironi
PURPOSE: To investigate the feasibility of perfusion-CT (p-CT) measurements in quantitative assessment of hemodynamic changes related to sorafenib in patients with advanced hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Twenty-two patients with advanced HCC underwent p-CT study (256-MDCT scanner) before and 2 months after sorafenib administration. Dedicated perfusion software generated a quantitative map of arterial and portal perfusion and calculated the following perfusion parameters in target liver lesion: hepatic perfusion (HP), time-to-peak (TTP), blood volume (BV), arterial perfusion (AP), and hepatic perfusion index (HPI)...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28583623/pre-treatment-mdct-based-texture-analysis-for-therapy-response-prediction-in-gastric-cancer-comparison-with-tumour-regression-grade-at-final-histology
#14
Francesco Giganti, Paolo Marra, Alessandro Ambrosi, Annalaura Salerno, Sofia Antunes, Damiano Chiari, Elena Orsenigo, Antonio Esposito, Elena Mazza, Luca Albarello, Roberto Nicoletti, Carlo Staudacher, Alessandro Del Maschio, Francesco De Cobelli
PURPOSE: An accurate prediction of tumour response to therapy is fundamental in oncology, so as to prompt personalised treatment options if needed. The aim of this study was to investigate the ability of preoperative texture analysis from multi-detector computed tomography (MDCT) in the prediction of the response rate to neo-adjuvant therapy in patients with gastric cancer. MATERIAL AND METHODS: Thirty-four patients with biopsy-proven gastric cancer were examined by MDCT before neo-adjuvant therapy, and treated with radical surgery after treatment completion...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28583519/usefulness-of-multi-detector-computed-tomography-scanning-as-a-replacement-for-diethylenetriamine-pentaacetic-acid
#15
H H Lee, W K Han, S K Kang, K H Huh, M S Kim, S I Kim, Y S Kim, Y E Yoon
BACKGROUND: Diethylenetriamine pentaacetic acid (DTPA) and multi-detector computed tomography (MDCT) can predict postoperative estimated glomerular filtration rate (eGFR) in a live kidney donor. Accordingly, we compared predicted eGFR measured by use of DTPA and MDCT. METHODS: From January 2013 to May 2015, 264 live kidney donors were enrolled. All donors underwent preoperative DTPA and MDCT, and bilateral renal cortex volume was measured by use of MDCT. We estimated DTPA-eGFR [remaining split renal function (%) × preoperative eGFR] and Vol-eGFR [remaining renal volume/total renal volume (%) × preoperative eGFR] and analyzed DTPA-eGFR, Vol-eGFR, and Modification of Diet in Renal Disease (MDRD)-eGFR during week 1 and in months 1, 3, and 6...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28577726/updates-in-hepatic-oncology-imaging
#16
REVIEW
Pallavi Pandey, Heather Lewis, Ankur Pandey, Carl Schmidt, Mary Dillhoff, Ihab R Kamel, Timothy M Pawlik
The utilization of advanced imaging modalities play an important role in the detection and differentiation of benign and malignant hepatic lesions. Imaging characteristics of hepatic tumors can sometimes be atypical, often leading to diagnostic challenges. Recent technical improvements in contrast enhanced ultrasound (CEUS), computed tomography (CT), and magnetic resonance imaging (MRI) have helped to better characterize hepatic lesions. For example, contrast agents used in US can now better delineate liver lesions, while the ability to reliably produce multiplanar and 3-D reconstructions through the use of MDCT provides an additional advantage in the context of therapeutic decision making for patients with hepatic lesions...
June 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28577563/endoscopic-ultrasonography-compared-with-multidetector-computed-tomography-for-the-preoperative-staging-of-gastric-cancer-a-meta-analysis
#17
REVIEW
Run-Cong Nie, Shu-Qiang Yuan, Xiao-Jiang Chen, Shi Chen, Li-Pu Xu, Yong-Ming Chen, Bao-Yan Zhu, Xiao-Wei Sun, Zhi-Wei Zhou, Ying-Bo Chen
BACKGROUND: The current study sought to perform a meta-analysis to compare the preoperative staging of endoscopic ultrasonography (EUS) and multidetector computed tomography (MDCT) in gastric carcinoma. METHODS: Articles published between January 1, 2000, and April 1, 2016, that compared EUS with MDCT were included, and data were presented as 2 × 2 tables. The sensitivities, specificities and summary receiver operating characteristic (ROC) curves for T and N staging were calculated using a bivariate mixed effects model...
June 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28571228/imaging-evaluation-of-enhancement-patterns-of-flat-gall-bladder-wall-thickening-and-its-correlation-with-clinical-and-histopathological-findings
#18
Manoj Mathur, Jasvir Singh, Devinder Pal Singh, Navneet Kaur, Saryu Gupta, Samrin Haq
INTRODUCTION: Gall bladder Wall Thickening (GWT) is caused by wide spectrum of diseases. Initially Ultrasound (USG) was used as imaging modality for screening of acute abdomen because of its high sensitivity and real time character. Now, Computed Tomography (CT) is used because of its high temporal and spatial resolution. AIM: Evaluation of GWT and its enhancement patterns on contrast enhanced CT scan in a bid to differentiate benign from malignant causes and to correlate the imaging features with clinical and histopathological findings...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571226/optic-nerve-canal-relation-to-posterior-paranasal-sinuses-in-indian-ethnics-review-and-objective-classification
#19
Rishikesh Madhukar Itagi, Chaitra Parameshwara Adiga, Kiran Kalenahalli, Lakshmikanth Goolahally, Manju Gyanchandani
INTRODUCTION: Posterior paranasal sinuses consisting of posterior ethmoid and sphenoid sinuses show varying pneumatization and relationship to Optic Nerve Canal (ONC). Most commonly ONC is superolateral to sphenoid sinus, however varied protrusion of ONC into the sinuses may occur. Rarely it may pass completely through the sinus. Optic Nerve (ON) is covered by a thin bony layer or by periosteum and sinus mucosa without bone. Extensive pneumatization of sphenoid sinus and bony dehiscence predisposes to ON injury...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28570626/surface-radiation-dose-comparison-of-a-dedicated-extremity-cone-beam-computed-tomography-cbct-device-and-a-multidetector-computed-tomography-mdct-machine-in-pediatric-ankle-and-wrist-phantoms
#20
Sebastian Tschauner, Robert Marterer, Eszter Nagy, Georg Apfaltrer, Michael Riccabona, Georg Singer, Georg Stücklschweiger, Helmuth Guss, Erich Sorantin
OBJECTIVES: To evaluate and compare surface doses of a cone beam computed tomography (CBCT) and a multidetector computed tomography (MDCT) device in pediatric ankle and wrist phantoms. METHODS: Thermoluminescent dosimeters (TLD) were used to measure and compare surface doses between CBCT and MDCT in a left ankle and a right wrist pediatric phantom. In both modalities adapted pediatric dose protocols were utilized to achieve realistic imaging conditions. All measurements were repeated three times to prove test-retest reliability...
2017: PloS One
keyword
keyword
66803
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"