keyword
MENU ▼
Read by QxMD icon Read
search

Abdominal CT

keyword
https://www.readbyqxmd.com/read/28079832/usefulness-of-low-dose-chest-ct-for-initial-evaluation-of-blunt-chest-trauma
#1
Sung Jung Kim, Anjali Basnyat Bista, Young Gi Min, Eun Young Kim, Kyung Joo Park, Doo Kyoung Kang, Joo Sung Sun
We aimed to compare the diagnostic performance and inter-observer consistency between low dose chest CT (LDCT) and standard dose chest CT (SDCT) in the patients with blunt chest trauma.A total of 69 patients who met criteria indicative of blunt chest trauma (77% of male; age range, 16-85) were enrolled. All patients underwent LDCT without intravenous (IV) contrast and SDCT with IV contrast using parameters as following: LDCT, 40 mAs with automatic tube current modulation (ATCM) and 100 kVp (BMI <25, n = 51) or 120 kVp (BMI>25, n = 18); SDCT, 180 mAs with ATCM and 120 kVp...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28079399/safety-and-efficacy-of-tissue-plasminogen-activator-tpa-and-deoxyribonuclease-dnase-for-complicated-pleural-effusions-secondary-to-abdominal-pathology
#2
Adnan Majid, Sebastian Ochoa, Sumit Chatterji, Sebastian Fernandez-Bussy, Fayez Kheir, Estefania Rivera, George Cheng, Erik Folch
RATIONALE: Exudative pleural effusions may arise secondary to inflammation of intra-abdominal structures. Pleural space loculations can complicate these effusions, preventing adequate chest tube drainage and leading to consideration of surgical intervention. Previous studies have demonstrated that intrapleural administration of tissue plasminogen activator (tPA) combined with human recombinant deoxyribonuclease (DNase) can improve fluid drainage and reduce surgery for patients with loculated parapneumonic effusions; however, the efficacy of this treatment has not been evaluated for complicated pleural effusions attributed to intraabdominal inflammation...
January 12, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28078130/radiographic-and-endoscopic-regression-of-metastatic-gastric-cancer-to-the-colon-in-the-setting-of-5-aminosalicylic-acid-use
#3
Yuval A Patel, Shannon J McCall, Xuefeng Zhang, Tracy Jaffe, Rahul A Shimpi
Colonic metastases from gastric cancer are a rare phenomenon and sparsely reported in the literature. We report a case of a 59-year-old woman who presented with vague abdominal symptoms and initial computer tomography (CT) imaging suggestive of a colonic apple-core lesion with serial colonoscopic biopsies diagnostic of metastatic signet ring cell gastric adenocarcinoma. This case is unique given the evolving CT and endoscopic findings that suggested a regression in colonic wall thickening in the setting of 5-aminosalicylic acid (5-ASA) use prior to histologic diagnosis...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28075619/role-of-ct-in-the-diagnosis-of-nonspecific-abdominal-pain-a-multicenter-analysis
#4
Jonathan D Eisenberg, Andrew T Reisner, William D Binder, Atif Zaheer, Martin L Gunn, Ken F Linnau, Chad M Miller, Angela C Tramontano, Maurice S Herring, Emily C Dowling, Elkan F Halpern, Karen Donelan, G Scott Gazelle, Pari V Pandharipande
OBJECTIVE: The objective of our study was to determine whether specific patient and physician factors-known before CT-are associated with a diagnosis of nonspecific abdominal pain (NSAP) after CT in the emergency department (ED). MATERIALS AND METHODS: We analyzed data originally collected in a prospective multicenter study. In the parent study, we identified ED patients referred to CT for evaluation of abdominal pain. We surveyed their physicians before and after CT to identify changes in leading diagnoses, diagnostic confidence, and admission decisions...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28075196/typhlitis-neutropenic-enterocolitis-in-patients-with-acute-leukemia-a-review
#5
Rodrigo Portugal, Marcio Nucci
Typhlitis is an abdominal complication of cancer chemotherapy, affecting mostly patients receiving intensive chemotherapeutic regimens with high potential to induce mucosal damage, such as patients with acute leukemia. Despite being relatively frequent, there are no randomized trials or high-quality cohort studies addressing important aspects of the diagnosis and management of the disease. Areas covered: In this review we discuss the gaps in the literature, acknowledging that the evidences for recommendations regarding the management of typhlitis are mostly expert opinion...
January 11, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28074019/point-organ-radiation-dose-in-abdominal-ct-effect-of-patient-off-centering-in-an-experimental-human-cadaver-study
#6
Ranish Deedar Ali Khawaja, Sarabjeet Singh, Atul Padole, Alexi Otrakji, Diego Lira, Da Zhang, Bob Liu, Andrew Primak, George Xu, Mannudeep K Kalra
To determine the effect of patient off-centering on point organ radiation dose measurements in a human cadaver scanned with routine abdominal CT protocol. A human cadaver (88 years, body-mass-index 20 kg/m(2)) was scanned with routine abdominal CT protocol on 128-slice dual source MDCT (Definition Flash, Siemens). A total of 18 scans were performed using two scan protocols (a) 120 kV-200 mAs fixed-mA (CTDIvol 14 mGy) (b) 120 kV-125 ref mAs (7 mGy) with automatic exposure control (AEC, CareDose 4D) at three different positions (a) gantry isocenter, (b) upward off-centering and (c) downward off-centering...
January 10, 2017: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/28073639/association-between-volume-and-glucose-metabolism-of-abdominal-adipose-tissue-in-healthy-population
#7
Hyun Woo Kwon, Sang Mi Lee, Jeong Won Lee, Jung-Eun Oh, Se-Whan Lee, Shin Young Kim
OBJECTIVE: We investigated the association of adipose tissue volume and metabolic activity with cardiometabolic risk factors. METHODS: 232 healthy subjects (43.23±4.09y) having (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) results were included. Clinical information, anthropometry and laboratory results were obtained. Volume and metabolic activity of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) was obtained from FDG PET/CT...
January 7, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28073377/magnitude-and-influencing-factors-of-respiration-induced-liver-motion-during-abdominal-compression-in-patients-with-intrahepatic-tumors
#8
Yong Hu, Yong-Kang Zhou, Yi-Xing Chen, Zhao-Chong Zeng
PURPOSE: The purpose of this study was to use 4-dimensional-computed tomography (4D-CT) to evaluate respiration-induced liver motion magnitude and influencing factors in patients with intrahepatic tumors undergoing abdominal compression. METHODS: From January 2012 to April 2016, 99 patients with intrahepatic tumors were included in this study. They all underwent 4D-CT to assess respiratory liver motion. This was performed during abdominal compression in 53 patients and during free-breathing (no abdominal compression) in 46 patients...
January 10, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28071718/reproducibility-and-repeatability-of-computer-tomography-based-measurement-of-abdominal-subcutaneous-and-visceral-adipose-tissues
#9
Yuan-Hao Lee, Hsing-Fen Hsiao, Hou-Ting Yang, Shih-Yi Huang, Wing P Chan
Excessive accumulation of abdominal adipose tissue is a widely recognized as a major feature of obesity, and it can be quantified by dual-energy x-ray absorptiometry (DXA). However, in a phantom study, the inter- and intra-instrument reliability of DXA remains unpredictable. Thus, we attempted to determine the precision of estimates from computer tomography-based measurements and analysis with AZE Virtual Place software. To determine the inter-rater reproducibility and intra-rater repeatability of adipose tissue area estimates, we used the automatic boundary-tracing function of the AZE Virtual Place to generate cross-sectional areas of subcutaneous and visceral adipose tissues from the abdomen of reconstructed CT images...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28071631/profile-of-pancreatic-tumors-at-a-tertiary-care-center
#10
P Nandan, M Nirupama, J R Kini, S Gopal, K K Sahu, S Rai
BACKGROUND: Pancreas, a relatively inaccessible organ, poses diagnostic difficulties with overlapping presentation among benign and malignant tumors. In the present study, pancreatic aspirates obtained by computed tomography (CT) guided procedures were used for cytodiagnosis. Our study aims at correlating clinical, cytological, biochemical, and histopathological results in obtaining a final diagnosis. METHODOLOGY: A retrospective study of 2 years was done which included 32 cases of pancreatic tumors at a tertiary care center...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28070657/-how-to-incorporate-dual-energy-imaging-into-a-high-volume-abdominal-imaging-practice
#11
Eric P Tamm, Ott Le, Xinming Liu, Rick R Layman, Dianna D Cody, Priya R Bhosale
Dual-energy CT imaging has many potential uses in abdominal imaging. It also has unique requirements for protocol creation depending on the dual-energy scanning technique that is being utilized. It also generates several new types of images which can increase the complexity of image creation and image interpretation. The purpose of this article is to review, for rapid switching and dual-source dual-energy platforms, methods for creating dual-energy protocols, different approaches for efficiently creating dual-energy images, and an approach to navigating and using dual-energy images at the reading station all using the example of a pancreatic multiphasic protocol...
January 9, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28069475/retention-associated-with-video-capsule-endoscopy-systematic-review-and-meta-analysis
#12
REVIEW
Mona Rezapour, Chidi Amadi, Lauren Gerson
BACKGROUND: Video capsule endoscopy (VCE) has become a major diagnostic tool for small-bowel evaluation. However, retention of the video capsule endoscope remains a major concern. METHODS: We performed a systematic review of VCE retention rates using Pubmed and SCOPUS (1995-2015). We included studies that enrolled at least 10 subjects, included VCE retention rates, and separated retention rates by indication. We used Comprehensive Meta-Analysis (Version 3.0) to calculate pooled prevalence rates with 95% confidence intervals and assessed heterogeneity using Cochran's Q statistic...
January 6, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28069418/splenic-artery-aneurysm-rupture-in-pregnancy
#13
Joshua Jacobson, Chad Gorbatkin, Stacey Good, Scott Sullivan
CASE PRESENTATION: A pregnant woman at 22+5/7weeks gestation presented to the emergency department (ED) from an outpatient clinic, hypotensive after experiencing a syncopal episode. On arrival to the ER she was tachycardic, tachypneic and complaining of abdominal pain. A bedside FAST was performed and noted free fluid in the abdomen. Subsequent CT obtained noted the rare but life-threatening diagnosis of ruptured splenic artery aneurysm that resulted in emergent transfer to the operating room with OB/GYN and general surgery...
December 15, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28068928/newly-recognized-cerebral-infarctions-on-postmortem-imaging-a-report-of-three-cases-with-systemic-infectious-disease
#14
Sakon Noriki, Kazuyuki Kinoshita, Kunihiro Inai, Toyohiko Sakai, Hirohiko Kimura, Takahiro Yamauchi, Masayuki Iwano, Hironobu Naiki
BACKGROUND: Postmortem imaging (PMI) refers to the imaging of cadavers by computed tomography (CT) and/or magnetic resonance imaging (MRI). Three cases of cerebral infarctions that were not found during life but were newly recognized on PMI and were associated with severe systemic infections are presented. CASE PRESENTATIONS: An 81-year-old woman with a pacemaker and slightly impaired liver function presented with fever. Imaging suggested interstitial pneumonia and an iliopsoas abscess, and blood tests showed liver dysfunction and disseminated intravascular coagulation (DIC)...
January 10, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28065375/accessory-spleen-versus-lymph-node-value-of-iodine-quantification-with-dual-energy-computed-tomography
#15
Sebastian Winklhofer, Wei-Ching Lin, Jack W Lambert, Benjamin M Yeh
OBJECTIVES: To evaluate whether iodine quantification with Dual-Energy Computed Tomography (DECT) improves the differentiation of accessory spleens (AS) from lymph nodes (LN) compared to CT number measurements. METHODS: Abdominal DECT images of 75 patients with either AS (n=35) or LN (n=48) (benign entity) were retrospectively evaluated. Hounsfield Units (HU) and iodine concentrations of AS, LN and the main spleen were measured. Receiver operating characteristics (ROC) were performed to calculate an optimal threshold for distinguishing AS from LN...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28065368/a-randomised-clinical-trial-of-routine-versus-selective-ct-imaging-in-acute-abdomen-impact-of-patient-age-on-treatment-costs-and-hospital-resource-use
#16
Tiina T Lehtimäki, Hannu Valtonen, Pekka Miettinen, Petri Juvonen, Hannu Paajanen, Ritva Vanninen
OBJECTIVES: To evaluate the impact of patient age on hospital resource use and treatment costs of acute abdominal pain (AAP). MATERIALS AND METHODS: A total of 300 adult patients with AAP were randomised to either computed tomography (CT, n=150) or selective imaging practice (SIP, n=150) groups. Final analysis included 254 patients, 143 (42 patients ≥65years) in the CT and 111 (32 patients ≥65years) in the SIP group. All CT group patients underwent abdominal CT whereas in the SIP group, imaging was based on the clinical assessment...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28060856/hiv-infection-is-associated-with-increased-fatty-infiltration-of-the-thigh-muscle-with-aging-independent-of-fat-distribution
#17
Javzandulam Natsag, Kristine M Erlandson, Deborah E Sellmeyer, Sabina A Haberlen, Joseph Margolick, Lisa P Jacobson, Frank J Palella, Susan L Koletar, Jordan E Lake, Wendy S Post, Todd T Brown
BACKGROUND: Lower muscle density on computed tomography (CT) provides a measure of fatty infiltration of muscle, an aspect of muscle quality that has been associated with metabolic abnormalities, weakness, decreased mobility, and increased fracture risk in older adults. We assessed the cross-sectional relationship between HIV serostatus, age, thigh muscle attenuation, and thigh muscle cross-sectional area (CSA). METHODS: Mean CT-quantified Hounsfield units (HU) of the thigh muscle bundle and CSA were evaluated in 368 HIV-infected and 145 HIV-uninfected men enrolled in the Multicenter AIDS Cohort Study (MACS) Cardiovascular Substudy using multivariable linear regression...
2017: PloS One
https://www.readbyqxmd.com/read/28058986/midterm-results-of-proximal-aneurysm-sealing-with-the-ovation-stent-graft-according-to-on-vs-off-label-use
#18
Gianmarco de Donato, Francesco Setacci, Luciano Bresadola, Patrizio Castelli, Roberto Chiesa, Nicola Mangialardi, Giovanni Nano, Carlo Setacci
PURPOSE: To compare the use of the Ovation stent-graft according to the ≥7-mm neck length specified by the original instructions for use (IFU) vs those treated off-label (OL) for necks <7 mm long. METHODS: A multicenter retrospective registry (TriVascular Ovation Italian Study) database of all patients who underwent endovascular aneurysm repair with the Ovation endograft at 13 centers in Italy was interrogated to identify patients with a minimum computed tomography (CT) follow-up of 24 months, retrieving records on 89 patients (mean age 76...
January 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28058076/non-alcoholic-fatty-pancreatic-disease-a-review-of-literature
#19
REVIEW
Hassan Tariq, Suresh Nayudu, Sai Akella, Mariela Glandt, Sridhar Chilimuri
There is an epidemic of obesity worldwide. The prevalence of obesity has doubled over the last three decades. Obesity, especially abdominal obesity is associated with insulin resistance that can lead to pancreatic steatosis and non-alcoholic fatty pancreatic disease (NAFPD). NAFPD describes a phenotype entity ranging from deposition of fat in the pancreas to pancreatic inflammation, and resultant fibrosis, which is similar to that of non-alcoholic fatty liver disease (NAFLD). NAFPD may represent a meaningful manifestation of metabolic syndrome...
December 2016: Gastroenterology Research
https://www.readbyqxmd.com/read/28057913/humoral-hypercalcemia-in-uterine-cancers-a-case-report-and-literature-review
#20
Vijeyaluxmy Motilal Nehru, Gwenalyn Garcia, Juan Ding, Fanyi Kong, Qun Dai
BACKGROUND Paraneoplastic hypercalcemia is a well-described complication associated with a variety of malignancies. However, its incidence in gynecological malignancies is low. CASE REPORT A 53-year-old woman presented with progressive abdominal distention and irregular vaginal bleeding of several weeks' duration. A contrast CT abdomen and pelvis was significant for a mass in the lower uterine/cervical region, multiple peritoneal and omental masses, enlarged pelvic and paraaortic lymph nodes, and large-volume ascites...
January 6, 2017: American Journal of Case Reports
keyword
keyword
1294
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"