keyword
MENU ▼
Read by QxMD icon Read
search

Emergency CT imaging

keyword
https://www.readbyqxmd.com/read/28927030/implementation-of-diffusion-weighted-magnetic-resonance-imaging-in-target-delineation-of-central-lung-cancer-accompanied-with-atelectasis-in-precision-radiotherapy
#1
Xinli Zhang, Zheng Fu, Guanzhong Gong, Hong Wei, Jinghao Duan, Zhaoqiu Chen, Xiangming Chen, Ruozheng Wang, Yong Yin
Radiotherapy, particularly the target delineation of cancer based on scanned images, plays a key role in the planning of cancer treatment. Recently, diffusion-weighted magnetic resonance imaging (DW-MRI) has emerged as a prospective superior procedure compared with intensified computed tomography (CT) and positron emission tomography (PET) in the target delineation of cancer. However, the implication of DW-MRI in lung cancer, the leading cause of cancer-associated mortality worldwide, has not been extensively evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926310/coronary-ct-angiography-derived-fractional-flow-reserve
#2
Christian Tesche, Carlo N De Cecco, Moritz H Albrecht, Taylor M Duguay, Richard R Bayer, Sheldon E Litwin, Daniel H Steinberg, U Joseph Schoepf
Invasive coronary angiography (ICA) with measurement of fractional flow reserve (FFR) by means of a pressure wire technique is the established reference standard for the functional assessment of coronary artery disease (CAD) ( 1 , 2 ). Coronary computed tomographic (CT) angiography has emerged as a noninvasive method for direct assessment of CAD and plaque characterization with high diagnostic accuracy compared with ICA ( 3 , 4 ). However, the solely anatomic assessment provided with both coronary CT angiography and ICA has poor discriminatory power for ischemia-inducing lesions...
October 2017: Radiology
https://www.readbyqxmd.com/read/28925991/a-multiscale-imaging-and-modelling-dataset-of-the-human-inner-ear
#3
Nicolas Gerber, Mauricio Reyes, Livia Barazzetti, Hans Martin Kjer, Sergio Vera, Martin Stauber, Pavel Mistrik, Mario Ceresa, Nerea Mangado, Wilhelm Wimmer, Thomas Stark, Rasmus R Paulsen, Stefan Weber, Marco Caversaccio, Miguel A González Ballester
Understanding the human inner ear anatomy and its internal structures is paramount to advance hearing implant technology. While the emergence of imaging devices allowed researchers to improve understanding of intracochlear structures, the difficulties to collect appropriate data has resulted in studies conducted with few samples. To assist the cochlear research community, a large collection of human temporal bone images is being made available. This data descriptor, therefore, describes a rich set of image volumes acquired using cone beam computed tomography and micro-CT modalities, accompanied by manual delineations of the cochlea and sub-compartments, a statistical shape model encoding its anatomical variability, and data for electrode insertion and electrical simulations...
September 19, 2017: Scientific Data
https://www.readbyqxmd.com/read/28921727/hot-off-the-press-embedded-clinical-decision-support-in-electronic-health-record-decreases-use-of-high-cost-imaging-in-the-emergency-department-embed-study
#4
Corey Heitz, Justin Morgenstern, William K Milne
This longitudinal before/after study of embedded CDRs assessed the effects of clinical decision support on use of common imaging studies. Among high users, rates of CT-brain and CT c-spine were reduced after implementation of embedded clinical decision instruments, while in low users, rates increased. This article summarizes the manuscript and the Skeptics Guide to Emergency Medicine podcast, as well as the ensuing social media/online discussion. This article is protected by copyright. All rights reserved.
September 15, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28921009/radiation-overexposure-from-repeated-ct-scans-in-young-adults-with-acute-abdominal-pain
#5
Massimo Tonolini, Elena Valconi, Angelo Vanzulli, Roberto Bianco
PURPOSE: The purpose of this study is to assess the dose of ionizing radiation caused by repeated CT scans performed to investigate non-traumatic acute abdominal conditions in young adults. METHODS: Over 26 months, we collected a cohort of patients aged 18 to 45 years who were subject to at least one urgent contrast-enhanced abdomen/pelvis CT. Patients affected with urolithiasis, HIV infection, tumors, and vascular and chronic inflammatory bowel diseases were excluded...
September 18, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28920508/internal-carotid-artery-dissection-among-younger-and-older-patients-with-acute-ischemic-stroke
#6
Y Amsalem, L Porat, M C Javitt, E Sprecher, G Telman
BACKGROUND: Carotid artery dissection (CAD) is a known causative factor in the etiology of acute ischemic stroke in young patients. However, the significance of CAD in older patients with acute ischemic stroke is unclear with only a few prior clinical studies. In order to isolate the influence of CAD as an independent factor, we performed multivariate analysis of common covariables in acute ischemic stroke patients in northern Israel. PATIENTS AND METHODS: 347 consecutive patients who suffered from acute ischemic stroke had initial CT angiography (CTA) ordered from the emergency room...
September 16, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28918422/the-modern-art-of-reading-computed-tomography-images-of-the-lungs-quantitative-ct
#7
Felix J F Herth, Miranda Kirby, Jered Sieren, Jonas Herth, Joshua Schirm, Susan Wood, Maren Schuhmann
Lung diseases are increasing in prevalence and overall burden worldwide. To stem the tide, more and more national and international guidelines are recommending the use of various diagnostic algorithms that are disease specific. There is growing consensus among the respiratory community that although patient histories and lung function testing are the minimum required for clinical examinations, these tests alone are not sufficient for disease characterization. Therefore, the use of computed tomography (CT) imaging is increasing used in clinical decision making for lung diseases...
September 16, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28918335/modern-diagnosis-of-chronic-thromboembolic-pulmonary-hypertension
#8
Aileen Kharat, Anne-Lise Hachulla, Stéphane Noble, Frédéric Lador
Chronic thromboembolic pulmonary hypertension (CTEPH) should be suspected in patients presenting persistent dyspnea three months after a pulmonary embolism or in patients presenting with acute pulmonary embolism and suggestive images on the CT-scan. For these patients, a specific diagnostic work-up should be performed. First step consists of the ventilation/perfusion (V/Q) scan which is a good screening test due to its high sensitivity and high negative predictive value. Pulmonary angiography remains the gold standard approach for the confirmation of the diagnosis and pre-surgical evaluation of CTEPH...
September 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28917250/emerging-technologies-in-stereotactic-body-radiotherapy
#9
Lijun Ma, Lei Wang, Chia-Lin Tseng, Arjun Sahgal
Stereotactic body radiation therapy (SBRT) stems from the initial developments of intra-cranial stereotactic radiosurgery (SRS). Despite similarity in their names and clinical goals of delivering a sufficiently high tumoricidal dose, maximal sparing of the surrounding normal tissues and a short treatment course, SBRT technologies have transformed from the early days of body frame-based treatments with X-ray verification to primarily image-guided procedures with cone-beam CT or stereoscopic X-ray systems and non-rigid body immo-bilization...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28916590/us-emergency-department-trends-in-imaging-for-pediatric-nontraumatic-abdominal-pain
#10
Lauren M Niles, Monika K Goyal, Gia M Badolato, James M Chamberlain, Joanna S Cohen
OBJECTIVES: To describe national emergency department (ED) trends in computed tomography (CT) and ultrasound imaging for the evaluation of pediatric nontraumatic abdominal pain from 2007 through 2014. METHODS: We used data from the National Hospital Ambulatory Medical Care Survey to measure trends in CT and ultrasound use among children with nontraumatic abdominal pain. We performed multivariable logistic regression to measure the strength of the association of ED type (pediatric versus general ED) with CT and ultrasound use adjusting for potential confounding variables...
September 15, 2017: Pediatrics
https://www.readbyqxmd.com/read/28916177/quantifying-the-impact-of-noninterpretive-tasks-on-radiology-report-turn-around-times
#11
McKinley Glover, Renata R Almeida, Pamela W Schaefer, Michael J Lev, William A Mehan
PURPOSE: Traditional radiology productivity metrics do not account for noninterpretive tasks (NITs). This study aimed to systematically quantify NITs and their impact on report turn-around time (RTAT) during solo academic neuroradiology overnight coverage in the emergency department. METHODS: Retrospective analysis of 1 week of data, including phone call quantity and duration, clinician identification badge access to the reading room ("badge swipes"), suspected acute strokes, imaging examination volume, and emergency department patient volume, was performed...
September 13, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28915161/unenhanced-dual-energy-computed-tomography-visualization-of-brain-edema
#12
Mohammed F Mohammed, Olivia Marais, Adam Min, David Ferguson, Sabeena Jalakhan, Faisal Khosa, Michael OʼKeeffe, Tim OʼConnell, Heiko Schmiedeskamp, Bernhard Krauss, Axel Rohr, Savvas Nicolaou
PURPOSE: The aim of this study was to determine whether dual-energy computed tomography (DECT) imaging is superior to conventional noncontrast computed tomography (CT) imaging for the detection of acute ischemic stroke. MATERIALS AND METHODS: This was a retrospective, single-center study of 40 patients who presented to the emergency department (ED) of a major, acute care, teaching center with signs and symptoms of acute stroke. Only those patients who presented to the ED within 4 hours of symptom onset were included in this study...
September 14, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28914343/image-guided-percutaneous-removal-of-ballistic-foreign-bodies-secondary-to-air-gun-injuries
#13
Jacob L Rothermund, Andrew J Rabe, Nicholas A Zumberge, James W Murakami, Patrick S Warren, Mark J Hogan
BACKGROUND: Ballistic injuries with retained foreign bodies from air guns is a relatively common problem, particularly in children and adolescents. If not removed in a timely fashion, the foreign bodies can result in complications, including pain and infection. Diagnostic methods to identify the presence of the foreign body run the entire gamut of radiology, particularly radiography, ultrasound (US) and computed tomography (CT). Removal of the foreign bodies can be performed by primary care, emergency, surgical, and radiologic clinicians, with or without imaging guidance...
September 15, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28912636/should-emergency-endoscopy-be-performed-in-all-patients-with-suspected-colonic-diverticular-hemorrhage
#14
Takeshi Uehara, Satohiro Matsumoto, Hiroyuki Miyatani, Hirosato Mashima
OBJECTIVE: We attempted to develop a scoring system for facilitating decision making regarding the performance of emergency endoscopy in patients with colonic diverticular hemorrhage. METHODS: This study involved analysis of the data of 178 patients who presented with hematochezia and were diagnosed as having colonic diverticular hemorrhage by colonoscopy. The patients were divided into 2 groups depending on whether the bleeding source was identified or not at the initial endoscopy (source-identified and source-not-identified groups), and on the basis of the results obtained, we established a scoring system for predicting successful identification of the bleeding source...
2017: Clinical Medicine Insights. Gastroenterology
https://www.readbyqxmd.com/read/28905656/comparison-of-low-dose-and-standard-dose-abdominal-ct-scan-in-body-stuffers
#15
Hooman Bahrami-Motlagh, Zahra Mahboubi-Fooladi, Babak Salevatipour, Hossein Hassanian-Moghaddam, Seyyed Hadi Mirhashemi
PURPOSE: Detection of body stuffers is challenging in emergency departments. Because of the small size of baggies, plain radiograph is of little value in most suspects. On the other hand, abdomen CT scan is burdened by high cost and radiation dose. This study was performed to compare the image quality, radiation dose and accuracy of low-dose CT scan in comparison with standard dose. MATERIAL AND METHODS: In this prospective study, suspected body stuffers who were referred to the radiology department underwent two different protocols of abdominal non-contrast CT scan simultaneously: low-dose (with equivalent dose to conventional abdominal x-ray) and standard dose...
September 14, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28902876/postoperative-lead-migration-in-deep-brain-stimulation-surgery-incidence-risk-factors-and-clinical-impact
#16
Takashi Morishita, Justin D Hilliard, Michael S Okun, Dan Neal, Kelsey A Nestor, David Peace, Alden A Hozouri, Mark R Davidson, Francis J Bova, Justin M Sporrer, Genko Oyama, Kelly D Foote
INTRODUCTION: Deep brain stimulation (DBS) is an effective treatment for multiple movement disorders and shows substantial promise for the treatment of some neuropsychiatric and other disorders of brain neurocircuitry. Optimal neuroanatomical lead position is a critical determinant of clinical outcomes in DBS surgery. Lead migration, defined as an unintended post-operative displacement of the DBS lead, has been previously reported. Despite several reports, however, there have been no systematic investigations of this issue...
2017: PloS One
https://www.readbyqxmd.com/read/28901622/assessment-of-prior-image-induced-nonlocal-means-regularization-for-low-dose-ct-reconstruction-change-in-anatomy
#17
Hao Zhang, Jianhua Ma, Jing Wang, William Moore, Zhengrong Liang
PURPOSE: Repeated computed tomography (CT) scans are prescribed for some clinical applications such as lung nodule surveillance. Several studies have demonstrated that incorporating a high-quality prior image into the reconstruction of subsequent low-dose CT (LDCT) acquisitions can either improve image quality or reduce data fidelity requirements. Our proposed previous normal-dose image induced nonlocal means (ndiNLM) regularization method for LDCT is an example of such a method. However, one major concern with prior image based methods is that they might produce false information when the prior image and the current LDCT image show different structures (for example, if a lung nodule emerges, grows, shrinks, or disappears over time)...
September 2017: Medical Physics
https://www.readbyqxmd.com/read/28900880/characterizing-indeterminate-renal-masses-with-molecular-imaging-the-role-of-99m-tc-mibi-spect-ct
#18
REVIEW
Andrew M Reynolds, Kristin Kelly Porter
PURPOSE OF REVIEW: The majority of enhancing renal masses cannot be characterized through imaging as malignant or benign; however, such characterization could save patients from unnecessary surgery and/or biopsy and associated morbidity. Herein, we review the recent literature on the emerging use of (99m)Tc-MIBI SPECT/CT in preoperative differentiation of enhancing renal masses. RECENT FINDINGS: Recent reports have shown that (99m)Tc-MIBI SPECT/CT imaging can differentiate mitochondrial-rich, benign, or indolent renal masses from renal cell carcinoma...
September 12, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28900664/-prehospital-care-for-stroke-patients
#19
REVIEW
C H Nolte, H J Audebert
The effectiveness of thrombolysis or mechanical recanalization for acute stroke is higher, the sooner these therapies are started. Therefore, acute stroke patients need to be evaluated by qualified staff for these therapies as soon as possible. Lay persons need to identify the typical symptoms of stroke as an emergency and act accordingly by calling the emergency medical system (EMS). The EMS team reassesses the symptoms and prompts cerebral imaging. Cerebral imaging is performed ideally in hospitals with a stroke unit where subsequent (stroke) treatments occur...
September 12, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28900548/a-case-of-female-acute-urinary-retention-presenting-to-the-ed
#20
Kylen Swartzberg, Ahmed Adam, Feroza Motara, Abdullah E Laher
INTRODUCTION: Acute urinary retention is a rare occurrence in women necessitating further investigation. Potential underlying causes may be broadly classified into obstructive, neurological, pharmacological, and psychogenic categories. CASE: A 36-year-old nulliparous female presented to the Emergency Department with a two-day history of acute urinary retention. Point-of-care ultrasonography and CT scan imaging confirmed the presence of a large uterine mass causing compression of the bladder...
2017: Case Reports in Emergency Medicine
keyword
keyword
60061
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"