keyword
MENU ▼
Read by QxMD icon Read
search

CAT scans

keyword
https://www.readbyqxmd.com/read/28898344/-lung-epithelioid-hemangioendothelioma-report-of-one-case
#1
Manuel Quiroz, Álvaro Undurraga, Rafael Moya, Cristina Fernández, Katiuska Bezares, Virginia Linacre
Epithelioid hemangioendothelioma is a multifocal tumor that rarely metastasizes. It is difficult to diagnose, most often it is an incidental finding in young asymptomatic women. The radiologic pattern is heterogeneous. Histologic confirmation of Weibel-Palade bodies or immunohistochemistry based on specific tumor markers such as factor VIII and CD34 are the most important finding to confirm the diagnosis. We report a 21 years old woman Presenting with cough and dyspnea. A chest X ray was suggestive of tuberculosis...
May 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28867464/is-cone-beam-computed-tomography-accurate-for-postoperative-evaluation-of-implants-an-in-vitro-study
#2
Michele Machado Vidor, Gabriela Salatino Liedke, Mathias Pante Fontana, Heraldo Luis Dias da Silveira, Nadia Assein Arus, André Lemos, Mariana Boessio Vizzotto
OBJECTIVE: The aim of this study was to evaluate the accuracy of cone beam computed tomography (CBCT) for evaluation of the bone-implant interface in comparison with periapical radiography. STUDY DESIGN: Titanium implants were inserted in 74 bovine rib blocks in intimate contact with bone walls and with a gap of 0.125 mm (simulating failure in the osseointegration process). Periapical radiographs were taken with conventional film, and CBCT scans were acquired with i-CAT (0...
August 3, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28856832/central-retinal-preservation-in-rdac-cats
#3
Andrea Louise Minella, Laurence Mireille Occelli, Kristina Narfström, Simon Michael Petersen-Jones
OBJECTIVE: Children with Leber congenital amaurosis (LCA) due to CEP290 mutations show characteristic macular preservation. Spectral domain-optical coherence tomography (SD-OCT) is a noninvasive technique to investigate retinal structural changes. Loss of integrity of the ellipsoid zone (EZ) on OCT in people with retinal disease has been associated with loss of visual function and is a useful measure of retinal disease progression. We hypothesized that rdAc felines with Cep290 mutation would have a similar pattern of degeneration, with relative central retinal preservation associated with maintenance of the EZ...
August 30, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28846963/catalase-modified-gold-nanoparticles-determination-of-the-degree-of-protein-adsorption-by-gel-electrophoresis
#4
Katarzyna Ranoszek-Soliwoda, Ewa Czechowska, Emilia Tomaszewska, Grzegorz Celichowski, Tomasz Kowalczyk, Tomasz Sakowicz, Janusz Szemraj, Jaroslaw Grobelny
In this study we present a method to determine the degree to which catalase (CAT) is adsorbed onto gold nanoparticles (AuNPs) using polyacrylamide gel electrophoresis (PAGE) with silver staining. AuNPs (13nm) were synthesized in water by the chemical reduction method and modified with CAT (AuNPs-CAT). The colloidal stability and NP size before and after the modification were investigated by dynamic light scattering and scanning transmission electron microscopy. Electrophoresis was performed under different conditions (native, with and without SDS, and with and without β-mercaptoethanol) to find the optimal conditions for determining the surface coverage of AuNPs with CAT protein...
August 18, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28772233/functional-mri-based-identification-of-brain-regions-activated-by-mechanical-noxious-stimulation-and-modulatory-effect-of-remifentanil-in-cats
#5
Dai Nagakubo, Yuji Hamamoto, Daisuke Hasegawa, Masatoshi Kamata, Tomoya Iizuka, Kanako Muta, Naoki Fujita, Takayuki Nakagawa, Ryohei Nishimura
This study was conducted to identify the brain regions corresponding to mechanical noxious stimulation in cats using functional magnetic resonance imaging (fMRI) and to investigate the modulatory effect of remifentanil on the activation of these regions. Six healthy cats were anesthetized using a constant-rate infusion of alfaxalone. Cats were allocated to one of three treatment groups: remifentanil 0 (saline), 0.25, and 0.5μg/kg/min. A 3.0-T MRI unit was used to collect fMRI data. During the fMRI scanning, mechanical noxious stimulation was applied by tail clamping...
July 24, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28756537/atypical-morphology-and-disparate-speciation-in-a-case-of-feline-cryptococcosis
#6
S J M Evans, K Jones, A R Moore
A 6-year-old, spayed female cat was presented with acute respiratory signs and pleural effusion. Computed tomography scan revealed a large, lobulated mass effect in the ventral right hemithorax with concurrent sternal lymphadenopathy. A cytologic sample of the mass contained pyogranulomatous inflammation, necrotic material, and abundant yeast structures that lacked a distinct capsule and demonstrated rare pseudohyphal forms. Fungal culture and biochemical testing identified the yeast as Cryptococcus albidus, with susceptibility to all antifungal agents tested...
July 29, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28752521/effect-of-catheter-size-and-injection-rate-of-contrast-agent-on-enhancement-and-image-quality-for-triple-phase-helical-computed-tomography-of-the-liver-in-small-dogs
#7
Sang-Kwon Lee, Dahae Lee, Dongeun Kim, Ahyoung Cha, Jihye Choi
Rapid contrast injection is recommended for triple-phase helical computed tomography (CT) of the liver. However, a large-gauge catheter is needed for faster contrast injection and this is not practical for small breed dogs or cats. The purpose of this crossover group study was to evaluate applicability of a lower injection rate with a small-gauge (G) catheter for triple-phase hepatic CT in small dogs. Triple-phase CT images were acquired for six beagle dogs using three protocols: an injection rate of 1.5 ml/s with a 24 G catheter, 3...
July 27, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28738005/accuracy-and-repeatability-of-long-bone-replicas-of-small-animals-fabricated-by-use-of-low-end-and-high-end-commercial-three-dimensional-printers
#8
Jamie A Cone, Thomas M Martin, Denis J Marcellin-Little, Ola L A Harrysson, Emily H Griffith
OBJECTIVE To assess the repeatability and accuracy of polymer replicas of small, medium, and large long bones of small animals fabricated by use of 2 low-end and 2 high-end 3-D printers. SAMPLE Polymer replicas of a cat femur, dog radius, and dog tibia were fabricated in triplicate by use of each of four 3-D printing methods. PROCEDURES 3-D renderings of the 3 bones reconstructed from CT images were prepared, and length, width of the proximal aspect, and width of the distal aspect of each CT image were measured in triplicate...
August 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28711696/week-to-week-variation-of-scintigraphic-semi-quantitative-thyroid-variables-in-14-healthy-experimental-cats
#9
Veerle Volckaert, Eva Vandermeulen, Emmelie Stock, Luc Duchateau, Sylvie Daminet, Myriam Hesta, Jimmy Saunders, Robrecht Dockx, Kathelijne Peremans
Although scintigraphy is an important tool for the assessment of thyroid function in cats, time variation of commonly used thyroid variables has not been investigated to this day. The aim of this study was to investigate whether a week-to-week variation of scintigraphic variables exists in healthy cats of a magnitude that is clinically relevant, as this could lead to misinterpretation of results. Fourteen adult, healthy, experimental cats were included in the study. At 3 time points, with 7-day intervals, the cats underwent a thyroid pertechnetate scan and blood samples were collected...
July 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28701962/the-effect-of-calendula-officinalis-on-oxidative-stress-and-bone-loss-in-experimental-periodontitis
#10
Mariana Dos Reis Lima, Amanda P Lopes, Conceição Martins, Gerly A C Brito, Virgínia C Carneiro, Paula Goes
Periodontitis is associated with reduced antioxidant capacity and increased oxidative damage. Oxidative stress induces inflammation and bone loss contributing to the pathological progression of periodontal disease. Calendula officinalis (CLO) has demonstrated anti-inflammatory and anti-oxidant activities. Therefore, the aim of this study was to evaluate the effect of CLO on oxidative stress and bone loss in rats subjected to experimental periodontitis (EP). For this, 72 male Wistar rats were divided into groups: Naïve, Saline (SAL) and CLO...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28700517/a-longitudinal-assessment-of-bone-mineral-density-and-body-composition-in-competitive-cyclists
#11
Breanne S Baker, Raoul F Reiser
Competitive cycling has been associated with low bone mineral density (BMD); however, BMD is a multifaceted issue. The purpose of this study was to investigate how age (18-49 years), sex, USA Cycling Category (elite-4) and racing type (road and multiple bikes), influenced body composition across a season in competitive cyclists. February marked the preseason, where 42 participants (22 males, 20 females) completed a health history and cycling questionnaire, four day dietary log and a Dual-energy X-ray absorptiometry (DXA) scan and repeated the measures 180±11 days later...
July 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28691179/microtubular-fuel-cell-with-ultrahigh-power-output-per-footprint
#12
Shiding Miao, Shulian He, Mengnan Liang, Gungun Lin, Bin Cai, Oliver G Schmidt
A novel realization of microtubular direct methanol fuel cells (µDMFC) with ultrahigh power output is reported by using "rolled-up" nanotechnology. The microtube (Pt-RuO2 -RUMT) is prepared by rolling up Ru2 O layers coated with magnetron-sputtered Pt nanoparticles (cat-NPs). The µDMFC is fabricated by embedding the tube in a fluidic cell. The footprint of per tube is as small as 1.5 × 10(-4) cm(2) . A power density of ≈257 mW cm(-2) is obtained, which is three orders of magnitude higher than the present microsized DFMCs...
September 2017: Advanced Materials
https://www.readbyqxmd.com/read/28689464/predictive-value-of-scintigraphic-semi-quantitative-thyroid-parameters-on-radioiodine-therapy-outcome-in-hyperthyroid-cats
#13
Veerle Volckaert, Eva Vandermeulen, Luc Duchateau, Sylvie Daminet, Jimmy H Saunders, Kathelijne Peremans
Objectives The outcome of radioiodine therapy in hyperthyroid cats is suspected to be influenced by multiple factors. The degree of activity of the thyroid gland, represented by uptake of sodium pertechnetate or tracer activities of radioiodine by the thyroid gland on thyroid scintigraphy, has been suggested in the literature as one of those. Thyroid gland pertechnetate uptake can be represented by (semi-)quantitative factors such as the thyroid to salivary gland (T/S) ratio, the thyroid to background (T/B) ratio and the percentage technetium uptake by the thyroid glands (%TcU)...
July 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28668955/influence-of-sex-and-age-on-posterior-semicircular-canal-thickness
#14
Jaime Whyte, M Teresa Tejedor, Luis V Monteagudo, Ana Whyte, Ana I Cisneros, Rafael Crovetto, Jesus J Fraile, Miguel A Crovetto
OBJECTIVE: The aim of this study is to determine whether sex and age influence posterior semicircular canal (PSC) thickness. METHODS: This observational study was conducted in 3 tertiary hospitals. The minimal distance between the PSC and the posterior cranial fossa (PSC thickness) was estimated by thin-section multidetector row computed axial tomography (CAT) scan of the temporal bones. Nonselected consecutive patients of all ages (607 temporal bones) were considered...
2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/28639458/use-of-computed-tomography-to-define-a-sacral-safe-corridor-for-placement-of-2-7-mm-cortical-screws-in-feline-sacroiliac-luxation
#15
Helen Philp, Alexane Durand, Felipe De Vicente
Objectives This study aimed to define a safe corridor for 2.7 mm cortical sacroiliac screw insertion in the dorsal plane (craniocaudal direction) using radiography and CT, and in the transverse plane (dorsoventral direction) using CT in feline cadavers. A further aim was to compare the values obtained by CT with those previously reported by radiography in the transverse plane. Methods Thirteen pelvises were retrieved from feline cadavers and dissected to expose one of the articular surfaces of the sacrum. A 2...
June 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28630697/the-effect-of-position-on-the-precision-of-dual-energy-x-ray-absorptiometry-and-correlation-with-body-condition-score-in-dogs-and-cats
#16
Charlotte R Bjørnvad, Mie E Nielsen, Susanna E M Hansen, Dorte H Nielsen
Dual-energy X-ray absorptiometry (DEXA) has been used to assess body composition in dogs and cats in several studies, but studies are difficult to compare for several reasons. The aim of the present study was to evaluate whether positioning of dogs or cats in either dorsal or ventral recumbency during DEXA scanning influences results. Dogs and cats that were brought to the University Hospital for Companion Animals for euthanasia during the period 15 September-6 November 2015 were consecutively recruited if owners signed a written consent...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28598220/bone-and-cortical-bone-thickness-of-mandibular-buccal-shelf-for-mini-screw-insertion-in-adults
#17
Riccardo Nucera, Antonino Lo Giudice, Angela Mirea Bellocchio, Paola Spinuzza, Alberto Caprioglio, Letizia Perillo, Giovanni Matarese, Giancarlo Cordasco
OBJECTIVE: To analyze the buccal bone thickness, bone depth, and cortical bone depth of the mandibular buccal shelf (MBS) to determine the most suitable sites of the MBS for mini-screw insertion. MATERIALS AND METHODS: The sample included cone-beam computed tomographic (CBCT) records of 30 adult subjects (mean age 30.9 ± 7.0 years) evaluated retrospectively. All CBCT examinations were performed with the i-CAT CBCT scanner. Each exam was converted into DICOM format and processed with OsiriX Medical Imaging software...
September 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28578614/the-correlation-between-direction-and-amount-of-retrusive-movement-and-condyle-position-and-joint-space
#18
Burim Kiseri, Süleyman Çağatay Dayan, Melih Yıldız, Tonguç Sülün
OBJECTIVE: The direction and amount of retrusive movement may be correlated with the amount of joint space and the maximum intercuspal position of the condyle. The aim of this study was to identify any such correlation using an ultrasonic jaw motion analyzer and digital volumetric tomographic (DVT) scans. METHODS: Thirty-five dental students were selected as subjects. DVT scans were obtained using a next-generation i-CAT CBCT unit, and the direction and amount of retrusive movement were measured with a 3-D analyzer...
June 3, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28529049/heterogeneity-of-transverse-axial-tubule-system-in-mouse-atria-remodeling-in-atrial-specific-na-ca-2-exchanger-knockout-mice
#19
Xin Yue, Rui Zhang, Brian Kim, Aiqun Ma, Kenneth D Philipson, Joshua I Goldhaber
Transverse-axial tubules (TATs) are commonly assumed to be sparse or absent in atrial myocytes from small animals. Atrial myocytes from rats, cats and rabbits lack TATs, which results in a characteristic "V"-shaped Ca release pattern in confocal line-scan recordings due to the delayed rise of Ca in the center of the cell. To examine TAT expression in isolated mouse atrial myocytes, we loaded them with the membrane dye Di-4-ANEPPS to label TATs. We found that >80% of atrial myocytes had identifiable TATs...
May 19, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28481121/behavior-and-welfare-of-domestic-cats-housed-in-cages-larger-than-u-s-norm
#20
Judith L Stella, Candace C Croney, C Tony Buffington
The effect of providing additional floor space on cat behavior and welfare is not well documented. This study involved replication of an investigation of cats' responses to enhanced cage and room environments using cages of 0.56 m(2) with the same methodology but an increased space allowance of 1.1 m(2). Singly housed adult cats (n = 59) were randomly assigned to a treatment group that was a combination of a managed or unmanaged room and an enriched or unenriched cage environment. Cats were observed for 2 days for maintenance, affiliative, and avoidant behaviors using scan sampling and 5-min, continuous focal sampling...
July 2017: Journal of Applied Animal Welfare Science: JAAWS
keyword
keyword
100795
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"