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Veterinary Radiology & Ultrasound

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https://www.readbyqxmd.com/read/27922211/transrectal-ultrasonography-of-equine-lumbosacral-nerves-pilot-study-in-28-healthy-warmblood-horses
#1
Pablo Espinosa, Philippe Benoit, Isabel Salazar, Jesús de la Fuente, Philippe Heiles
A noninvasive method for visualizing lumbosacral nerves would be helpful for horses with suspected lumbosacral plexopathy or injury. The aim of this prospective descriptive pilot study was to characterize the ultrasonographic appearance of the lumbosacral nerves in a sample of healthy horses, and expand on the technique for image acquisition. Horses were recruited for inclusion if they were determined to be healthy and sound based on clinical and lameness evaluation. Transrectal ultrasound images of the lumbosacral nerves (L6, S1, and S2) were obtained for both sides...
December 6, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27922210/comparison-between-thoracic-radiographic-findings-and-postmortem-diagnosis-of-thoracic-diseases-in-dyspneic-companion-rats-rattus-norvegicus
#2
Virginie Fouriez-Lablée, Claire Vergneau-Grosset, Philip H Kass, Allison L Zwingenberger
Companion rats are often presented to veterinarians for respiratory difficulties. Dyspnea in rats is most commonly due to infectious pneumonia, and thoracic neoplasia can go undiagnosed ante mortem due to a mistaken interpretation of pneumonia. In domestic carnivores, pulmonary nodular patterns have been shown to correlate with lung neoplastic diseases and infectious diseases. The main objective of this retrospective case series study was to determine whether certain radiographic criteria could be correlated with the presence of thoracic infectious disease and neoplastic disease in companion rats...
December 6, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27918152/computed-tomographic-characteristics-of-the-thyroid-glands-in-eight-hyperthyroid-cats-pre-and-postmethimazole-treatment-compared-with-seven-euthyroid-cats
#3
Jennifer L Bush, Sarah Nemanic, Jana Gordon, Gerd Bobe
Hyperthyroidism is the most common feline endocrinopathy; thyroid computed tomography (CT) may improve disease detection and methimazole dose selection. Objectives of this experimental pre-post with historical case-control study were to perform thyroid CT imaging in awake or mildly sedated hyperthyroid cats, compare thyroid gland CT appearance in euthyroid and hyperthyroid cats pre- and postmethimazole treatment, and determine whether thyroid size or attenuation correlate with methimazole dose needed for euthyroidism...
December 5, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27910172/imaging-diagnosis-imaging-and-histopathologic-characteristics-of-a-vertebral-hamartoma-in-a-cat
#4
Frances E Taylor-Brown, Christopher R Lamb, Henny Martineau, Clare Muir, Elsa Beltran
A 9-month-old domestic shorthair cat had progressive ambulatory paraparesis, proprioceptive ataxia, and thoracolumbar hyperesthesia. An extradural mass affecting the left pedicle and lamina of the second lumbar vertebra (L2) causing marked spinal cord impingement was identified in magnetic resonance (MR) images. The mass was predominantly calcified in computed tomographic (CT) images. A hemilaminectomy was performed to resect the mass. Clinical signs were greatly improved at 12-month follow-up. The histopathologic diagnosis was vascular hamartoma...
December 1, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27910171/results-of-computed-tomography-in-dogs-with-suspected-wooden-foreign-bodies
#5
Christopher R Lamb, Elizabeth H W Pope, Karla C L Lee
Detection of wooden foreign bodies in dogs can be challenging. A retrospective, cross-sectional study was done to describe computed tomographic (CT) signs associated with wooden foreign bodies, and to estimate the accuracy of CT for detection of wooden foreign bodies. Patient records and CT images were reviewed for 72 dogs that had a history of suspected stick injury and CT of the affected body part, or possible wooden foreign object reported on CT, and had surgical exploration during the same period of hospitalization...
December 1, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27896903/imaging-diagnosis-magnetic-resonance-imaging-of-a-neuronal-heterotopia-in-the-brain-of-a-cat
#6
Antonia DeJesus, Bradley J Turek, Evelyn Galban, Jantra Ngosuwan Suran
A domestic shorthair kitten was presented for evaluation and further treatment of seizures. Magnetic resonance imaging of the brain revealed a large multilobulated mass in the third ventricle extending into the right lateral ventricle with secondary obstructive hydrocephalus. The mass was homogeneously isointense to gray matter on T2W, T2-FLAIR, T2(*) W, T1W, and ADC images, and hyperintense on DW-EPI. There was no appreciable contrast enhancement. Seizures were managed medically and with subsequent ventriculoperitoneal shunt placement...
November 28, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27885739/analysis-of-factors-affecting-outcome-of-ultrasound-guided-radiofrequency-heat-ablation-for-treatment-of-primary-hyperparathyroidism-in-dogs
#7
Daniel Bucy, Rachel Pollard, Richard Nelson
Radiofrequency (RF) parathyroid ablation is a noninvasive treatment for hyperparathyroidism in dogs. There are no published data assessing factors associated with RF parathyroid ablation success or failure in order to guide patient selection and improve outcome. The purpose of this retrospective analytical study was to determine whether imaging findings, biochemical data, or concurrent diseases were associated with RF heat ablation treatment failure. For inclusion in the study, dogs must have had a clinical diagnosis of primary hyperparathyroidism, undergone cervical ultrasound and RF ablation of abnormal parathyroid tissue, and must have had at least 3 months of follow-up information available following the date of ultrasound-guided parathyroid ablation...
November 24, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27873382/use-of-a-novel-board-game-in-a-clinical-rotation-for-learning-thoracic-differential-diagnoses-in-veterinary-medical-imaging
#8
Christopher P Ober
When confronted with various findings on thoracic radiographs, fourth-year veterinary students often have difficulty generating appropriate lists of differential diagnoses. The purpose of this one-group, pretest, posttest experimental study was to determine if a game could be used as an adjunct teaching method to improve students' understanding of connections between imaging findings and differential diagnoses. A novel board game focusing on differential diagnoses in thoracic radiography was developed. One hundred fourth-year veterinary students took a brief pretest, played the board game, and took a brief posttest as a part of their respective clinical radiology rotations...
November 21, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27866381/cardiac-magnetic-resonance-imaging-of-patent-ductus-arteriosus-in-three-dogs
#9
Youngjae Lee, Jaihyun Jung, Junyong Park, Jiyoon Jeong, Seokho Jeon, Sunyoung Park, Jinhwa Chang, Ji-Houn Kang, Chulhyun Lee, Dongwoo Chang
Patent ductus arteriosus (PDA) is the most common congenital cardiovascular disorder in dogs and requires an accurate diagnosis for an appropriate treatment. Cardiac MRI (cMRI) has been reported as a method for characterization of canine thoracic vasculature. However, to the authors' knowledge, no published studies describe evaluation of canine PDA through cMRI. Three dogs were selected for this exploratory study. Electrocardiogram gating and breath-hold techniques were performed using a 3T MR scanner. Both black blood imaging and bright blood cine acquisitions were performed...
November 20, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27866380/imaging-diagnosis-ultrasound-uncommon-features-of-an-abdominal-gossypiboma-in-a-dog
#10
Arnaud Louvet, Anne-Carole Duconseille
An abdominal mass was incidentally detected in a 12-year-old, neutered female, crossed breed dog. Abdominal ultrasonographic examination showed a well-delineated, irregular, heterogeneous mass that did not generate any distal acoustic shadowing. Transcutaneous US-guided biopsy of the mass were nonconclusive but raised the possibility of neoplasia. Surgery discovered a mass embedded in the omentum and a large quantity of surgical sponges were identified in cut section. To the authors' knowledge, this represents the first published case of gossypiboma casting no characteristic distal acoustic shadowing...
November 20, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27859901/radiographic-measurements-of-hoof-balance-are-significantly-influenced-by-a-horse-s-stance
#11
Frederik E Pauwels, Chris W Rogers, Heather Wharton, Hailey Flemming, Paul F Wightman, Ron W Green
Hoof balance radiographs are commonly used as the basis for corrective farriery decision-making in horses, however there are limited published data quantifying effects of the stance of the horse or the horizontal radiographic beam angle. In this analytical study, the influence of variation of the horse's stance in the craniocaudal and lateromodial plane on hoof balance measurements as well as the influence of variation of the horizontal radiographic beam angle on dorsopalmar hoof balance measurements was examined...
November 17, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27862599/effects-of-image-plane-patient-positioning-and-foraminal-zone-on-magnetic-resonance-imaging-measurements-of-canine-lumbosacral-intervertebral-foramina
#12
Claudia Zindl, Russell L Tucker, Jelena Jovanovik, Constanza Gomez Alvarez, David Price, Noel Fitzpatrick
Degenerative lumbosacral stenosis has been suspected to have a dynamic component, especially regarding encroachment of the L7 nerve roots exiting the lumbosacral foramina. Angled cross-sectional imaging of the neuroforamina has been found improve the accuracy of the diagnosis of stenosis in humans. In this anatomic study, foraminal apertures were evaluated by MRI at the entry, middle, and exit zones of the nerve roots in 30 dogs that were clinically affected by lumbosacral disease. Standard vs. oblique planar orientation and neutral vs...
November 16, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27859957/retrospective-comparison-of-three-dimensional-conformal-radiation-therapy-vs-prednisolone-alone-in-30-cases-of-canine-infratentorial-brain-tumors
#13
Elisabetta Treggiari, Thomas W Maddox, Rita Gonçalves, Jerome Benoit, Julia Buchholz, Laura Blackwood
Infratentorial tumors are relatively infrequent in dogs and a lack of data makes it difficult to offer prognostic information. Untreated, dogs with these neoplasms have shorter survival times than those with supratentorial tumors. The role of radiation therapy (RT) in the management of infratentorial tumors is poorly defined and tumoral/peritumoral swelling in this site is a potential cause of serious acute side effects. The aim of this retrospective, cohort study was to describe cases of infratentorial tumors treated with fractionated three-dimensional conformal RT (3D CRT) and glucocorticoids (GC), and compare outcomes and survival with dogs affected by tumors in the same location that received GC alone...
November 15, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27860072/magnetic-resonance-imaging-gross-postmortem-and-histological-findings-for-soft-tissues-of-the-plantar-aspect-of-the-tarsus-and-proximal-metatarsal-region-in-non-lame-horses
#14
Sue Dyson, Anthony Blunden, Rachel Murray
Injuries of the plantar soft tissues of the tarsus and proximal metatarsus can be a source of lameness in horses, however published information is lacking on high field MRI characteristics of these tissues. Objectives of the current anatomic study were to (1) describe high-field MRI features of the plantar tarsal and proximal metatarsal soft tissues; and (2) compare MRI findings with gross and histological appearances of selected structures for a sample of cadaver limbs from non-lame horses. Single hindlimbs for 42 horses, and right and left hindlimbs for eight horses were scanned using high-field MRI...
November 13, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27813316/imaging-diagnosis-magnetic-resonance-imaging-of-diffuse-leptomeningeal-oligodendrogliomatosis-in-a-dog-with-dural-tail-sign
#15
Monika Anna Lobacz, Fabienne Serra, Gawain Hammond, Anna Oevermann, Allison C Haley
A case of diffuse leptomeningeal oligodendrogliomatosis affecting the brain and spinal cord of a dog is presented. A 7.5-year old, male neutered Staffordshire bull terrier presented for evaluation of a chronic history of tetraparesis and seizures, with a multifocal neuroanatomical localization was determined. Extra-axial intradural lesions with an atypical presentation of a dural tail sign were seen on MRI. Histologically, the lesions were consistent with leptomeningeal oligodendrogliomatosis. To the authors' knowledge, a dural tail sign has not previously been reported as an MRI characteristic of diffuse leptomeningeal oligodendrogliomatosis in dogs...
November 4, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27813261/in-memoriam-klaus-hartung-prof-dr-habil-dipl-ecvdi-1938-2016
#16
Johann Lang, Tobias Schwarz, Martina Van Suntum, Susanne Boroffka, Bernd Tellhelm, Darryl Biery, Eberhard Ludewig
No abstract text is available yet for this article.
November 4, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27804173/imaging-diagnosis-radiography-and-computed-tomography-of-radioulnar-ischemic-necrosis-in-a-jack-russell-terrier
#17
Lisbeth Schmid, Andrea Klang, Nikola Katic, Agustina Ansón, Michaela Gumpenberger, Sibylle Kneissl
A 7-year-old Jack Russell Terrier with a history of minor trauma was presented for lameness of the left forelimb. Radiography and computed tomography demonstrated a localized radioulnar osteolytic lesion with cortical bone loss and enthesiophytes. Based on results of diagnostic imaging and histopathological examination, the final diagnosis was radioulnar ischemic necrosis (RUIN), complicated by pathologic fracture. A rare disorder of unknown etiology, RUIN may be secondary to tearing of the interosseous ligament and potential ischemia...
November 2, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27804181/comparisons-among-computed-tomographic-features-of-adipose-masses-in-dogs-and-cats
#18
Elisa Spoldi, Tobias Schwarz, Silvia Sabattini, Massimo Vignoli, Simona Cancedda, Federica Rossi
A better understanding of the CT features of different forms of canine and feline adipose tumors would be valuable for improving patient management and treatment. The purpose of this retrospective, cross-sectional study was to describe and compare the CT features of pathologically confirmed lipomas, infiltrative lipomas, and liposarcomas in a sample of canine and feline patients. A total of 50 animals (46 dogs, four cats) and a total of 60 lesions (23 lipomas, 20 infiltrative lipomas, and 17 liposarcomas) were included in the study...
November 1, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27790807/in-memoriam-dr-dan-cantwell
#19
W E Blevins
No abstract text is available yet for this article.
October 28, 2016: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/27790793/evaluation-of-the-computed-tomographic-sentinel-clot-sign-to-identify-bleeding-abdominal-organs-in-dogs-with-hemoabdomen
#20
Swan Specchi, Edoardo Auriemma, Simona Morabito, Filippo Ferri, Eric Zini, Valentina Piola, Pascaline Pey, Federica Rossi
The CT "sentinel clot sign" has been defined as the highest attenuation hematoma adjacent to a bleeding organ in humans with hemoabdomen. The aims of this retrospective descriptive multicenter study were to describe CT findings in a sample of dogs with surgically or necropsy confirmed intra-abdominal bleeding and determine prevalence of the "sentinel clot sign" adjacent to the location of bleeding. Medical records between 2012 and 2014 were searched for dogs with hemoabdomen and in which the origin of the bleeding was confirmed either with surgery or necropsy...
October 27, 2016: Veterinary Radiology & Ultrasound
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