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Veterinary Radiology & Ultrasound

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https://www.readbyqxmd.com/read/29336085/endotracheal-tube-placement-during-computed-tomography-of-brachycephalic-dogs-alters-upper-airway-dimensional-measurements
#1
Nai-Chieh Liu, Eileen L Troconis, Matthew McMillan, Marie-Aude Genain, Lajos Kalmar, David J Price, David R Sargan, Jane F Ladlow
Computed tomography (CT) is used to document upper airway lesions in dogs with brachycephalic obstructive airway syndrome. The presence of an endotracheal tube during CT scanning is often required for general anesthesia. We hypothesized that the endotracheal tube placement would change the soft tissue dimensions of the upper airway. The aims of this prospective, method comparison study were to evaluate the reliability of the previously reported upper airway CT measurements with endotracheal tube placement, and to propose measurements that are minimally affected by the endotracheal tube...
January 15, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29333663/computed-tomographic-retrograde-positive-contrast-cystography-and-computed-tomographic-excretory-urography-characterization-of-a-urinary-bladder-diverticulum-in-a-dog
#2
Agustina Anson, Carina Strohmayer, Jose M Larrinaga, Esteban Iglesias, Ramon Almela, Gustavo Ramírez, Vicente Cervera
A one-year-old intact male German shepherd dog was referred with a 3-month history of dysuria and pollakiuria. Physical examination revealed a large firm mass in the caudal abdomen. Findings from survey radiography, negative contrast cystography, computed tomographic (CT) retrograde positive contrast cystography, and CT excretory urography were consistent with a large urinary bladder diverticulum. An exploratory laparotomy revealed a normal wall appearance in the ventral compartment (true bladder) and marked thinning of the wall in the dorsal compartment (diverticulum)...
January 14, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29274126/computed-tomographic-contrast-tenography-of-the-digital-flexor-tendon-sheath-of-the-equine-hindlimb
#3
Rachel Agass, Jonathon Dixon, Barny Fraser
Pre-surgical investigation of digital flexor tendon sheath pathology remains challenging with current standard imaging techniques. The aim of this prospective, anatomical, pilot study was to describe the anatomy of the equine hind limb digital flexor tendon sheath using a combination of computed tomography (CT) and computed tomographic contrast tenography in clinically normal cadaver limbs. Ten pairs of hind limbs with no external abnormalities were examined from the level of the tarsometatarsal joint distally...
December 22, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29274112/relationships-among-neuroscore-magnetic-resonance-imaging-features-and-intracranial-pressure-in-sheep-affected-by-slow-growing-brain-lesions
#4
Maria A Evangelisti, Roberta Deiana, Valentino Melosu, Giovanni P Burrai, Isabella Ballocco, Antonio Varcasia, Antonio Scala, Maria L Manunta
Diagnosing high intracranial pressure by clinical and diagnostic imaging is particularly challenging for chronic or slow-growing lesions. The aim of this prospective case-control study is to determine whether the neuroscore and brain magnetic resonance imaging (MRI) are related to the direct measurement of intracranial pressure in sheep affected by intracranial slow-growing lesions due to chronic cerebral coenurosis (Coenurus cerebralis). Seventeen affected and 10 control sheep were included. All animals underwent a neurological examination, MRI of the brain, and direct measurement of intracranial pressure...
December 22, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29271127/real-time-elastosonography-of-lipomatous-vs-malignant-subcutaneous-neoplasms-in-dogs-preliminary-results
#5
Maurizio Longo, Spela Bavcar, Ian Handel, Sionagh Smith, Tiziana Liuti
Real-time elastography is a recently introduced ultrasound technique allowing the investigation of elastic properties of tissues. A diagnostic accuracy study was conducted to test the performance of this technique in the assessment of subcutaneous lesions in dogs. Fifty-two dogs were prospectively included in the preliminary study (34 malignant and 18 benign lesions). B-mode ultrasound was performed assessing the shape, margins, heterogeneity, and echotexture of the lesions. On elastosonography, assessment of the percentage of softness/hardness was recorded...
December 21, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29266517/acknowledgment-of-2017-reviewers-and-editorial-board-members-for-veterinary-radiology-ultrasound
#6
EDITORIAL
Jeryl Jones, Lucinda Ayres
No abstract text is available yet for this article.
December 20, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29230889/use-of-personal-protective-equipment-in-a-radiology-room-at-a-veterinary-teaching-hospital
#7
Monique N Mayer, Niels K Koehncke, Alexandra F Belotta, Isaac T Cheveldae, Cheryl L Waldner
The use of personal protective equipment by veterinary workers during radiographic imaging is inconsistent. While the self-reported use of leaded aprons and thyroid shields approaches 100% in some studies, the use of leaded gloves and eyeglasses is much lower. Previous studies describing personal protective equipment use are based on self-reporting. Objectives of this prospective, observational study were to describe use of leaded personal protective equipment during radiographic imaging by veterinary workers, and to compare observed use with self-reported use...
December 11, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29205634/safety-and-feasibility-of-stereotactic-radiotherapy-using-computed-portal-radiography-for-canine-intracranial-tumors
#8
Nicholas J Rancilio, R Timothy Bentley, Jeannie Poulson Plantenga, Magdalena M Parys, Beatriz G Crespo, George E Moore
Stereotactic radiotherapy is a highly conformal treatment option for intracranial and extracranial malignancies. Stereotactic radiotherapy utilizes specialized equipment specifically designed to avoid normal tissue while delivering ablative treatments with submillimeter precision and accuracy. Linear accelerator based stereotactic radiotherapy incorporates on-board image guidance utilizing cone beam computed tomography (CT). Many institutions lack the ability to provide image guidance with cone beam CT but delivery of highly conformal treatments with submillimeter precision and accuracy is still feasible...
December 4, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29205622/radiographic-features-of-congenital-segmental-dilation-of-the-intestine-in-a-german-shepherd-dog
#9
Laura Johnson, Kristina Simone, John Cullen, Ashley Talley, Eli B Cohen
A 10-week-old spayed female German Shepherd Dog was presented for acute vomiting and diarrhea. There was no reported foreign body or toxin ingestion. Radiographs showed a severely (∼11 × 7 cm), focally distended right abdominal intestinal segment containing gas and soft tissue material. Other small intestinal segments were segmentally gas distended. Celiotomy identified a ∼9 cm focally dilated segment at the jejunoileal junction with no aborad luminal obstruction. Resection and anastomosis of the dilation was performed...
December 4, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29205620/interobserver-reliability-of-computed-tomographic-contouring-of-canine-tonsils-in-radation-therapy-treatment-planning
#10
Keiko Murakami, Nicholas J Rancilio, Jeannie Poulson Plantenga, George E Moore, Hock Gan Heng, Chee Kin Lim
In radiation therapy (RT) treatment planning for canine head and neck cancer, the tonsils may be included as part of the treated volume. Delineation of tonsils on computed tomography (CT) scans is difficult. Error or uncertainty in the volume and location of contoured structures may result in treatment failure. The purpose of this prospective, observer agreement study was to assess the interobserver agreement of tonsillar contouring by two groups of trained observers. Thirty dogs undergoing pre- and post-contrast CT studies of the head were included...
December 4, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29194857/computed-tomographic-characteristics-of-pneumolabyrinth-in-a-french-bulldog-with-otitis-media-and-externa
#11
Audrey Belmudes, Jérôme Couturier, Guillaume Gory, Eddy Cauvin, Guillaume Condamin, Michael Rabillard, Delphine Rault
A four-year-old female French bulldog was presented for evaluation of acute, left-sided peripheral vestibular syndrome. Computed tomographic (CT) examination of the head revealed the presence of air within the left cochlea and vestibule, consistent with pneumolabyrinth. This was concurrent with ipsilateral otitis media and externa. Pneumolabyrinth is an uncommon finding in humans and is most frequently due to head trauma and temporal bone fracture. This is the first report describing pneumolabyrinth in a dog, apparently of nontraumatic origin in this case...
December 1, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29194832/the-pathogenesis-of-paraesophageal-empyema-in-dogs-and-constancy-of-radiographic-and-computed-tomography-signs-are-linked-to-involvement-of-the-mediastinal-serous-cavity
#12
Karine Gendron, Sean P McDonough, James A Flanders, May Tse, Peter V Scrivani
The mediastinal serous cavity is a normal anatomic space in the caudal mediastinum. Aims of this anatomic and case series study were to describe the signs of pathologic expansion of the mediastinal serous cavity observed during computed tomography (CT), review the underlying anatomy, perform a literature review, and evaluate the medical records of several dogs with mediastinal serous cavity empyema (paraesophageal empyema). The mesothelial lined mediastinal serous cavity is a cranial extension of the omental bursa, separated from the peritoneal cavity by the diaphragm, in the dorsal part of the caudal mediastinum, to the right of the esophagus, between the heart base and diaphragm...
November 30, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29193526/triple-phase-computed-tomography-of-the-pancreas-in-healthy-cats
#13
Scott Secrest, Ajay Sharma, Andrew Bugbee
While the availability and use of computed tomography (CT) continues to grow, no study has described the size and multiphase CT appearance of the normal feline pancreas. This information is important to not only allow more accurate identification and differentiation of disease, but it may also be useful in assessing pancreatic function. In this prospective analytical study, we described a triple phase CT protocol of the pancreas for use in sedated cats and the attenuation, enhancement pattern, size, and volume of the pancreas for a group of healthy cats...
November 28, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29160005/investigation-of-parameters-predicting-the-need-for-diagnostic-imaging-beyond-computed-tomography-in-the-evaluation-of-dogs-with-thoracolumbar-myelopathy-retrospective-evaluation-of-555-dogs
#14
Lee Emery, Silke Hecht, Xiaocun Sun
Thoracolumbar myelopathy encompasses a number of disease processes such as intervertebral disc disease, discospondylitis, trauma, congenital malformations, neoplasia, and intramedullary spinal cord disease. Compressive disc herniations are most common in dogs and require imaging procedures such as myelography, computed tomography (CT), and/or magnetic resonance imaging (MRI) to determine the need and location for decompressive surgery. The purposes of this retrospective, cross-sectional study were to evaluate all dogs undergoing thoracolumbar CT imaging as the initial diagnostic step between 2010 and 2015 and determine whether any of the imaging characteristics could be used to predict the need for additional imaging in the form of myelography, CT myelography, and/or MRI...
November 20, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29159974/ultrasonographic-anatomy-of-the-atlanto-occipital-region-and-ultrasound-guided-cerebrospinal-fluid-collection-in-rabbits-oryctolagus-cuniculus
#15
Carlo Anselmi, Sara Dias, Jaume Martorell, Marc Navarro, Yvonne Espada, Rosa Novellas
Cerebrospinal fluid analyses are important for diagnosis of neurologic problems in rabbits and for translational research projects using rabbits as models. Blind puncture of the cisterna magna is the current standard technique for sampling cerebrospinal fluid in this species. However, the complexity and small size of the cisterna magna and surrounding structures are limitations of this technique. Aims of this prospective, anatomic, pilot study were to (1) describe the normal anatomy of the atlanto-occipital region, (2) describe ultrasonographic anatomic landmarks, and (3) develop and evaluate a technique for ultrasound-guided puncture of the cisterna magna for cerebrospinal fluid sampling in rabbits...
November 20, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29134728/recent-advances-in-veterinary-radiation-oncology
#16
EDITORIAL
Michael S Kent, Michelle M Turek, John Farrelly
No abstract text is available yet for this article.
November 13, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29110365/magnetic-resonance-imaging-features-of-canine-gliomatosis-cerebri
#17
Daniela Schweizer-Gorgas, Diana Henke, Anna Oevermann, Johann Lang, Marc Vandevelde, Frank Steffen
A retrospective, case series study was undertaken to identify magnetic resonance imaging (MRI) characteristics of gliomatosis cerebri in dogs. Fourteen dogs were included by review of histopathological records and contemporaneous MRI. On MRI, all lesions presented as ill-defined, intraaxial lesions within the left and right forebrain hemispheres with involvement of white and gray matter. Lesions presented as hyperintense areas on T2-weighted and FLAIR sequences and as hypointense or isointense areas on T1-weighted images, with mild parenchymal contrast enhancement in three dogs...
November 6, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29094513/accuracy-of-3-tesla-magnetic-resonance-imaging-using-detection-of-fiber-loss-and-a-visual-analog-scale-for-diagnosing-partial-and-complete-cranial-cruciate-ligament-ruptures-in-dogs
#18
Constance G Fazio, Peter Muir, Susan L Schaefer, Kenneth R Waller
Canine cranial cruciate ligament rupture is often bilateral and asymmetrical, ranging from partial to complete rupture. The purpose of our diagnostic accuracy study was to assess the accuracy of 3 Tesla magnetic resonance imaging (MRI) detection of fiber loss and use of a visual analog scale in the diagnosis of complete versus partial cranial cruciate ligament rupture in 28 clinical dogs with unilateral complete rupture and contralateral partial rupture. Three Tesla MRI was performed on 56 stifles using sagittal sequences (T2-weighted fast spin echo with fat saturation, proton density fast spin echo, and T2-weighted 3D fast spin echo CUBE)...
November 1, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29094440/prospective-evaluation-of-abdominal-ultrasonographic-findings-in-35-dogs-with-leptospirosis
#19
Juliette Sonet, Anthony Barthélemy, Isabelle Goy-Thollot, Céline Pouzot-Nevoret
Despite the emergence of new serovars, a detailed and current abdominal ultrasonographic description of dogs with leptospirosis is lacking. The purpose of this prospective, observational, single cohort study was to illustrate abdominal ultrasonographic findings in 35 dogs with confirmed leptospirosis. At least one ultrasonographic abnormality was seen in all of the dogs. Ultrasound renal abnormalities were found in all the dogs and included increased renal cortical echogenicity (100%), increased medullary echogenicity (86%), reduced corticomedullary definition (80%), cortical thickening (74%), renomegaly (60%), pelvic dilation (31%), and medullary band (14%)...
November 1, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29318750/can-malignant-and-inflammatory-pleural-effusions-in-dogs-be-distinguished-using-computed-tomography
#20
(no author information available yet)
No abstract text is available yet for this article.
January 2018: Veterinary Radiology & Ultrasound
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