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https://www.readbyqxmd.com/read/28087955/water-as-neutral-oral-contrast-agent-in-abdominopelvic-ct-comparing-effectiveness-with-gastrografin-in-the-same-patient
#1
C H Lee, H Z Gu, B A Vellayappan, C H Tan
INTRODUCTION: Positive oral contrast is no longer deemed necessary for abdominopelvic computed tomography (CT) scans. Studies have shown water to be an equally effective oral contrast agent. However, to our knowledge no study has compared effectiveness between gastrografin and water in the same patient, which will provide a more objective evaluation of the two oral contrast agents. We aim to make a head-to-head comparison of water as neutral oral contrast (OC) against gastrografin as positive OC for abdominopelvic CT scans in the same patient...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28087066/use-of-water-soluble-contrast-medium-gastrografin-does-not-decrease-the-need-for-operative-intervention-nor-the-duration-of-hospital-stay-in-uncomplicated-acute-adhesive-small-bowel-obstruction-a-multicenter-randomized-clinical-trial-adhesive-small-bowel-obstruction
#2
Michel Scotté, Francois Mauvais, Michael Bubenheim, Cyril Cossé, Leslie Suaud, Celine Savoye-Collet, Isabelle Plenier, Aurelien Péquignot, Thierry Yzet, Jean Marc Regimbeau
BACKGROUND: This study evaluated the association between oral gastrografin administration and the need for operative intervention in patients with presumed adhesive small bowel obstruction. METHODS: Between October 2006 and August 2009, 242 patients with uncomplicated acute adhesive small bowel obstruction were included in a randomized, controlled trial (the Adhesive Small Bowel Obstruction Study, NCT00389116) and allocated to a gastrografin arm or a saline solution arm...
January 10, 2017: Surgery
https://www.readbyqxmd.com/read/28057367/increased-pre-procedural-urinary-microalbumin-is-associated-with-a-risk-for-renal-functional-deterioration-after-coronary-computed-tomography-angiography
#3
Satoshi Isobe, Miyuki Yuba, Hiroaki Mori, Susumu Suzuki, Kimihide Sato, Hideki Ishii, Toyoaki Murohara
BACKGROUND: Urinary microalbumin is a marker for preclinical nephropathy. A percentage change in cystatin C (%CyC) of ≥10% for 24h after tests with contrast media is reportedly an independent predictor for developing contrast-induced nephropathy. We investigated the relationship between the presence of urinary microalbumin and changes in CyC after coronary computed tomography angiography (CCTA). METHODS: Three hundred and thirty-three patients with known or suspected coronary artery disease who scheduled for CCTA using a 70mL of Iopamidol were enrolled...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28048915/su-f-i-29-investigating-the-impact-of-the-amount-of-contrast-material-used-in-abdominal-ct-examinations-regarding-the-diagnosis-of-appendicolith
#4
E Lavdas, N Boci, L Sarantaenna, A Godevenos, I Ntavelis, T Theodoropoulos, G Zaimis, P Mavroidis
PURPOSE: The purpose of this study is to report the case of a young adult in which the incomplete oral administration of contrast material led to diagnosis of an appendicolith, which cause acute appendicitis. METHODS: A male 34 years old underwent CT examination due to acute abdominal pain in the upper abdomen. An ultrasound examination of the upper abdomen and kidneys, an x-ray examination of the abdomen and a CT scan of the entire abdomen and pelvis after both oral and IV administration of contrast material were performed...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047012/we-fg-207b-01-best-in-physics-imaging-abdominal-ct-with-three-k-edge-contrast-materials-using-a-whole-body-photon-counting-scanner-initial-results-of-a-large-animal-experiment
#5
M Lakshmanan, R Symons, T Cork, C Davies-Venn, K Rice, A Malayeri, V Sandfort, D Bluemke, A Pourmorteza
PURPOSE: To demonstrate the feasibility of in vivo three-material decomposition techniques using photon-counting CT (PCCT) with possible advantage of resolving arterial and venous flow of an organ simultaneously. METHODS: Abdominal PCCT scans were acquired using a prototype whole-body PCCT with four energy thresholds (25/50/75/90keV) in a canine. Bismuth subsalicylate (60 mg) was administered orally one day prior to scanning. Immediately prior to CT scan, gadoteric acid (60 ml, Dotarem, Guerbet) was intravenously injected, followed in ten minutes by a 20mL injection of iodinated contrast (iopamidol 370 mg/mL, Bracco)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046275/su-f-p-29-impact-of-oral-contrast-agent-for-assisting-in-outlining-small-intestine-on-pelvic-imat-dose-in-patients-with-cervical-cancer
#6
R Zhang, W Bai, X Fan
PURPOSE: As the advanced intensity modulated arc therapy(IMAT) delivery systems becoming a main role of treatment ways, which places even greater demands on delivering accuracy. The impact of oral contrast agent (meglumine diatrizoate) for assisting in outlining the small intestine on pelvic IMAT dose in patients with cervical cancer was investigated. METHODS: Ten cervical cancer patients for postoperative radiotherapy underwent CT scans, and the planning target volumes (PTV) and organs at risk (including the small intestine, rectum, bladder, colon and the left and right femoral head) were contoured...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28025476/a-case-of-hepatocellular-carcinoma-presenting-as-a-gingival-mass
#7
Min Jung Kwon, Soo Hyung Ryu, Soo Yeon Jo, Chul Hoon Kwak, Won Jae Yoon, Jeong Seop Moon, Hye Kyung Lee
Oral metastatic tumor, which is uncommon and represents less than 1% of malignant oral neoplasms, usually arises from a primary mucosal or cutaneous cancer located in the head and neck regions. Metastasis of hepatocellular carcinoma (HCC) to the oral cavity, especially to gingiva, is extremely rare. A 50-year-old man, who was a chronic alcoholic and hepatitis B virus carrier, presented with abdominal distension and weight loss for the past 3 months. Three-phased contrast-enhanced abdominal CT revealed numerous conglomerated masses in the liver, suggesting huge HCCs arising in the background of liver cirrhosis with a large amount of ascites...
December 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28011496/identification-and-management-of-head-and-neck-cancer-recurrences-detected-on-adjuvant-radiation-oncology-simulation-scans
#8
Richard L Bakst, William Su
BACKGROUND/AIM: Computerized tomographic (CT) simulation is used to design precise radiation therapy treatment plans. These scans are not routinely read by radiology and are only used for planning purposes. As radiation oncology departments adopt the addition of intravenous contrast to their CT simulations, there is the potential for identification of post-surgical recurrences. PATIENTS AND METHODS: We identified all biopsy-proven local recurrences of head and neck cancer detected during CT simulation and followed their outcomes...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/27933477/impact-of-low-energy-ct-imaging-on-selection-of-positive-oral-contrast-media-concentration
#9
Manuel Patino, Diana J Murcia, Andrea Prochowski Iamurri, Avinash R Kambadakone, Peter F Hahn, Dushyant V Sahani
OBJECTIVES: To determine to what extent low-energy CT imaging affects attenuation of gastrointestinal tract (GIT) opacified with positive oral contrast media (OCM). Second, to establish optimal OCM concentrations for low-energy diagnostic CT exams. METHODS: One hundred patients (38 men and 62 women; age 62 ± 11 years; BMI 26 ± 5) with positive OCM-enhanced 120-kVp single-energy CT (SECT), and follow-up 100-kVp acquisitions (group A; n = 50), or 40-70-keV reconstructions from rapid kV switching-single-source dual-energy CT (ssDECT) (group B; n = 50) were included...
December 8, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27933409/imaging-trends-in-suspected-appendicitis-a-canadian-perspective
#10
Victoria F Tan, Michael N Patlas, Douglas S Katz
PURPOSE: The purpose of our study was to assess trends in the imaging of suspected appendicitis in adult patients in emergency departments of academic centers in Canada. METHODS: A questionnaire was sent to all 17 academic centers in Canada to be completed by a radiologist who works in emergency radiology. The questionnaires were sent and collected over a period of 4 months from October 2015 to February 2016. RESULTS: Sixteen centers (94%) responded to the questionnaire...
December 8, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27917278/the-preventive-and-therapeutic-roles-of-phytoestrogen-%C3%AE-zearalanol-on-osteoporetic-rats-due-to-ovariectomization
#11
Shaochun Li, Weiwei Zhang, Fei Duan, Weihua Liu, Xiaofang Sun, Xuefeng Pan
OBJECTIVES: The aim of this study was to observe the influence of phytoestrogen α-Zearalanol on ovariectomy-induced postmenopausal osteoporosis in rats. MATERIALS AND METHODS: 40 SD female rats were randomly divided into four groups: Sham group, OVX group (ovariectomized and fed estrogen), α-Zearalanol group (ovariectomized and fed α-Zearalanol) and untreated group (ovariectomized). Three weeks later after surgery, α-Zearalanol and estradiol valerate were administered by oral gavage for 12 weeks to the α-Zearalanol group and the OVX group, respectively...
November 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27908546/effects-of-branched-chain-amino-acid-supplementation-after-radiofrequency-ablation-for-hepatocellular-carcinoma-a-randomized-trial
#12
Shunsuke Nojiri, Kei Fujiwara, Noboru Shinkai, Etsuko Iio, Takashi Joh
OBJECTIVE: Maintenance of liver function is important for better outcomes after radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC). The aim of this study was to examine the effects of oral branched-chain amino acid (BCAA) supplementation on liver function, intrahepatic recurrence rate, and incidence of complications after RFA for HCC. METHODS: Patients with cirrhosis who underwent RFA were enrolled between August 2009 and April 2012, randomized to oral supplementation with Aminoleban EN (BCAA group) or diet alone (control group), and followed to determine changes in serum parameters and health status...
January 2017: Nutrition
https://www.readbyqxmd.com/read/27900976/multiple-visceral-venous-thromboses-associated-with-oral-contraceptive-use
#13
Kamel El-Reshaid, Shaikha Al-Bader, Hatem Sallam
Peripheral venous thromboembolism (VTE) is a known complication of oral contraceptive drugs (OCs), yet its association with visceral VTE is rarely reported. We describe a 21-year-old female patient who presented with sudden left loin pain. Plain computed tomography (CT) urography did not show kidney lesion but was suspicious of left renal vein thrombosis. Contrast study confirmed the diagnosis and also disclosed thrombosis of the splenic and left ovarian veins. The patient did not have a family history or laboratory evidence of hypercoagulable disorder...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27893377/high-performance-cad-ctc-scheme-using-shape-index-multiscale-enhancement-filters-and-radiomic-features
#14
Yacheng Ren, Jingchen Ma, Junfeng Xiong, Lin Lu, Jun Zhao
OBJECTIVE: Computer-aided detection (CAD) systems for computed tomography colonography (CTC) can automatically detect colorectal polyps. The main problem of currently developed CAD-CTC systems is the numerous false positives (FPs) caused by the existence of complicated colon structures (e.g., haustral fold, residual fecal material, inflation tube, and ileocecal valve). This study proposes a CAD-CTC scheme using shape index, multiscale enhancement filters, and radiomic features to address the FP issue...
November 22, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27888039/total-midgut-volvulus-in-adults-with-intestinal-malrotation-report-of-eleven-patients
#15
H Kotobi, V Tan, J Lefèvre, F Duramé, G Audry, Y Parc
OBJECTIVE: Total small-intestinal volvulus with malrotation (TSIVM) classically presents in the neonatal period; it occurs much less frequently in the adult and is often misdiagnosed. Prognosis is directly related to the degree and duration of intestinal ischemia. Our goal is to describe our experience with TSIVM in the adult, to identify any specific findings and to discuss its management. METHOD: Eleven patients who had undergone surgery for TSIVM at three centers between 1992 and 2012 were included...
November 22, 2016: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/27875338/an-image-domain-contrast-material-extraction-method-for-dual-energy-computed-tomography
#16
Jack W Lambert, Yuxin Sun, Robert G Gould, Michael A Ohliger, Zhixi Li, Benjamin M Yeh
OBJECTIVES: Conventional material decomposition techniques for dual-energy computed tomography (CT) assume mass or volume conservation, where the CT number of each voxel is fully assigned to predefined materials. We present an image-domain contrast material extraction process (CMEP) method that preferentially extracts contrast-producing materials while leaving the remaining image intact. MATERIALS AND METHODS: Image processing freeware (Fiji) is used to perform consecutive arithmetic operations on a dual-energy ratio map to generate masks, which are then applied to the original images to generate material-specific images...
November 22, 2016: Investigative Radiology
https://www.readbyqxmd.com/read/27872786/congenital-diaphragmatic-hernia-with-delayed-presentation
#17
Alireza Malekzadegan, Alireza Sargazi
Congenital diaphragmatic hernia (CDH) is caused due to abnormal formation of the muscular parts of diaphragm. The incidence of CDH in common births ranges from 1/25000 to 1/30000. Pulmonary hypoplasia and pulmonary hypertension are factors that associate with the increase of mortality and morbidity due to CDH. We presented a 68-year-old Iranian woman with abdominal pain and tenderness in right upper quadrant who was diagnosed as having CDH. The disease was detected using chest X-ray and chest and abdomen sonography and confirmed with chest and abdomen CT scan with and without oral contrast...
2016: Case Reports in Surgery
https://www.readbyqxmd.com/read/27855238/adrenal-crisis-secondary-to-bilateral-adrenal-haemorrhage-after-hemicolectomy
#18
Anthony Logaraj, Venessa H M Tsang, Shahrir Kabir, Julian C Y Ip
: Adrenal haemorrhage is a rare cause of adrenal crisis, which requires rapid diagnosis, prompt initiation of parenteral hydrocortisone and haemodynamic monitoring to avoid hypotensive crises. We herein describe a case of bilateral adrenal haemorrhage after hemicolectomy in a 93-year-old female with high-grade colonic adenocarcinoma. This patient's post-operative recovery was complicated by an acute hypotensive episode, hypoglycaemia and syncope, and subsequent computed tomography (CT) scan of the abdomen revealed bilateral adrenal haemorrhage...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27846189/the-plausible-association-of-mthfr-and-adora2a-polymorphisms-with-nodules-in-rheumatoid-arthritis-patients-treated-with-methotrexate
#19
Tomas Soukup, Martin Dosedel, Jana Nekvindova, Ales Antonin Kubena, Ilja Tacheci, Jurjen Duintjer Tebbens, Jiri Vlcek, Petr Bradna, Ivan Barvik, Petr Pavek
OBJECTIVE: The treatment of rheumatoid arthritis (RA) patients with methotrexate (MTX) is linked to the development or progression of rheumatoid nodules. The aim of this study was to determine whether folate and adenosine pathways-related single nucleotide polymorphisms might be predictive of increased nodule formation in RA patients treated with oral MTX. METHODS: A total of 185 Caucasian RA patients were enrolled in this cross-sectional study, all of whom fulfilled the 1987 RA criteria of the American College of Rheumatology; each patient had a history of MTX treatment...
November 14, 2016: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/27826994/diagnostic-efficacy-of-single-pass-abdominal-multidetector-row-ct-prospective-evaluation-of-a-low-dose-protocol
#20
Luigi Camera, Immacolata Liccardo, Federica Romano, Raffaele Liuzzi, Antonio Rispo, Massimo Imbriaco, Anna Testa, Gaetano Luglio, Simona De Fronzo, Fabiana Castiglione, Luigi Bucci, Arturo Brunetti
OBJECTIVES: To evaluate the diagnostic efficacy of single-pass contrast-enhanced multi-detector CT (CE-MDCT) performed with a low radiation-high contrast (LR-HC) dose protocol in selected patients with non traumatic acute bowel disease. METHODS: Sixty-five (32 M; 33 F; aged 20-67 years) consecutive patients with non traumatic acute bowel disease underwent single-pass CE-MDCT performed 70-100 sec after i.v. bolus injection of a non ionic iodinated contrast media (370 mgI/ml)...
November 9, 2016: British Journal of Radiology
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