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... Adrenal disease is a common problem in dogs and MRI is increasingly being used as an adjunctive diagnostic test. To date, the MRI features of normal canine adrenal glands have only been reported using 1.5‐Tesla (T) MRI. The aims of this prospective, methods‐comparison, exploratory study were to evaluate the effects of pulse sequence on the appearance of normal canine adrenal glands using 3 Tesla M ...
... With the increasing use of CT and MRI for diagnostic imaging and planning of interventional procedures, it is important for veterinary radiologists to be familiar with variations in normal vascular anatomy and not mistake them for pathology. The arterial blood supply to the cranial abdominal viscera is provided by the celiac and the cranial mesenteric arteries. A common celiacomesenteric trunk (CM ...
... Computed tomographic (CT) liver volumetry using the slice addition technique is an accurate, but a time‐consuming method. Commonly used DICOM‐viewing software only allows contouring of one area per image, which can be troublesome in the transverse plane as different lobes are separated. In this prospective, experimental, methods comparison study, we aimed to determine if hepatic contouring using s ...
... Computed tomographic arthrography (CTA) has been described as a method for detecting articular cartilage defects in equine carpal joints; however, published studies on the effects of contrast volume for lesion detection are currently lacking. The purpose of this prospective, experimental, pilot study was to determine a threshold volume of iodinated contrast for CTA of the antebrachiocarpal (ABC) a ...
... Accessory articulation between the transverse processes of the C6 and C7 vertebrae is an extremely rare anatomic variant that has only been previously described in two instances. In this report, we present the case of a 25-year-old male who sustained numerous injuries associated with a physical assault. A CT study of the cervical spine revealed a linear lucency mimicking a fracture but found on cl ...
... Computed tomographic (CT) methods for quantifying adrenal size are helpful for identifying and directing management of adrenal disease in dogs. This retrospective, observational study aimed to use CT to determine anatomic landmarks associated with adrenal gland volume in dogs, and subsequently develop an algorithm to estimate adrenal volume for individual subjects. Abdominal CT images from 150 dog ...
... Sustained systemic hypertension (SH) has been shown to cause target organ damage to various tissues in dogs and cats, including the aorta. Aortic dilatation occurs most commonly secondary to SH in people and develops prior to an aortic aneurysm. Our hypothesis was that blinded reviewers could be trained to recognize variable alterations of aortic shape and size on thoracic radiographs of canine pa ...
Lorena Arribas; Aida Sabaté-Llobera; Mónica Cos Domingo; Miren Taberna; Maria Sospedra; Lisa Martin; Ana Regina González-Tampán; Natalia Pallarés; Ricard Mesía; Vickie E. Baracos
abdomen; adipose tissue; body composition; chest; clinical nutrition; computed tomography; head and neck squamous cell carcinoma; males; muscles; radiology; skeletal muscle; standard deviation
Abstract:
... Computed tomography images acquired during routine cancer care provide an opportunity to determine body composition with accuracy and precision. Quantification of skeletal muscle is of interest owing to its association with clinical outcomes. However, the standards of precision testing considered mandatory in other areas of radiology are lacking from the literature in this area. We aim to describe ...
... Dynamic contrast CT with Patlak plot analysis can be used to determine the glomerular filtration rate (GFR). However, several studies have shown different GFR values and they are most likely less than the values by the standard techniques. The purpose of this prospective, experimental, and method comparison study was to evaluate the GFR using a CT technique (CT‐GFR) in 12 healthy dogs compared to ...
Kate L. Shumway; Jeffrey N. Bryan; Lindsay L. Donnelly; Brian K. Flesner; Jimmy C. Lattimer; Angela L. McCleary‐Wheeler; Joni M. Lunceford; Charles A. Maitz
... Radioactive iodine is frequently used for staging of human thyroid carcinomas. Iodine‐124 scans performed using position emission tomography (PET) allow for more precise dosimetry of therapeutic radioiodine. The distribution of I‐124 has not previously been described in veterinary medicine. The purpose of this prospective, exporatory, descriptive study is to evaluate the whole‐body distribution of ...
... Cavalier King Charles Spaniels (CKCS) are predisposed to developing myxomatous mitral valve disease (MMVD), with radiographs frequently used to screen for evidence of left‐sided cardiomegaly secondary to MMVD. Vertebral heart size (VHS), vertebral left atrial size (VLAS), modified VLAS (M‐VLAS), and radiographic left atrial dimension (RLAD) are reported as objective measurements of global heart si ...
... Stereotactic body radiation therapy (SBRT) is an established limb‐sparing treatment for dogs with appendicular osteosarcoma (OSA) and pathologic fractures are a common sequela. The objectives of this retrospective, observational, and descriptive study were to develop and evaluate objective CT criteria for predicting pathologic fractures and assess impacts on survival time. Included dogs had confir ...
... Computed tomography (CT)is increasingly available in veterinary referral practices; however, published studies describing CT lesions of the equine elbow are currently lacking. In this single‐center, retrospective, observational study, horses undergoing elbow CT at Equitom between July 2015 and October 2018 were reviewed. Subchondral bone sclerosis; resorption of the radius, ulna, and humerus; oste ...
... The variability in diagnostic imaging caseload, increasing class sizes, high hospital workloads, and the progressive departure of veterinary radiologists from academia can lead to inconsistent and reduced teaching opportunities. This one group pretest, posttest study aimed to compare the learning outcomes of students enrolled in two veterinary radiology clerkship models. Our hypothesis was that th ...
Astragalus membranaceus; Eleutherococcus; Food and Drug Administration; Mylabris; Panax ginseng; adjuvants; adverse effects; breast neoplasms; colorectal neoplasms; drug therapy; esophageal neoplasms; liver; liver neoplasms; lung neoplasms; lungs; lymphoma; meta-analysis; ovarian neoplasms; quality of life; radiology; radiotherapy; stomach neoplasms; traditional medicine; China
Abstract:
... Aidi injection is one of the China Food and Drug Administration approved Chinese herbal injections and the most competitive product in cancer care in China. It is composed of the extracts from Mylabris Phalerata, Astragalus Membranaceus, Panax Ginseng, and Acanthopanax Senticosus.This overview aims to map systematic reviews (SRs) of Aidi injection for cancer and provide a summarized evidence for c ...
... Computer‐based radiation therapy requires high targeting and dosimetric precision. Analytical dosimetric algorithms typically are fast and clinically viable but can have increasing errors near air‐bone interfaces. These are commonly found within dogs undergoing radiation planning for sinonasal cancer. This retrospective methods comparison study is designed to compare the dosimetry of both tumor vo ...
... Magnetic resonance imaging (MRI) is a standard test for diagnosis and treatment planning in dogs with degenerative thoracolumbar intervertebral disc disease (IVDD). However, published studies evaluating three‐dimensional fast‐spin echo (3D‐FSE) pulse sequences for dogs with IVDD are currently limited. Aims of this retrospective, observational study were to compare findings from T2‐weighted two‐ an ...
... Application of artificial intelligence (AI) to improve clinical diagnosis is a burgeoning field in human and veterinary medicine. The objective of this prospective, diagnostic accuracy study was to determine the accuracy, sensitivity, and specificity of an AI‐based software for diagnosing canine cardiogenic pulmonary edema from thoracic radiographs, using an American College of Veterinary Radiolog ...
... Published findings on the computed tomographic (CT) appearance of sialoceles are limited to brief descriptions from reported cases in eight dogs and one cat. The authors have seen sialoceles with CT characteristics that are not consistent with these previous reports. The purpose of this multicenter, retrospective, descriptive, case series study was to provide more detailed descriptions of the CT a ...
... An 8‐year‐old Border collie was presented with progressive tetraparesis, 6 days after oropharyngeal trauma with a wooden stick. Contrast‐enhanced CT of the head and the cervical spine showed heterogeneous enhancement of the soft tissues surrounding the C1 through C3 region, with extension into the ventral vertebral canal at this level. Two separate, small, foreign bodies were visible; one of which ...
body composition; body mass index; clinical nutrition; computed tomography; computer software; cross-sectional studies; diet therapy; humans; information systems; malnutrition; prognosis; radiology; skeletal muscle; vertebrae; China
Abstract:
... Skeletal muscle mass loss is an important aspect of malnutrition and is closely related to adverse clinical outcomes. Computed tomography (CT) is the gold standard for analysing muscle mass, and the skeletal muscle index at the third lumbar vertebra (L3-SMI), measured using CT, is an important indicator to evaluate total skeletal tissue. The aims of this study were to establish reference values fo ...
... High costs for installing, maintaining, and updating a standard picture archiving and communication system (PACS) can be prohibitive for small/medium‐sized veterinary facilities. The aims of this prospective, exploratory study were to describe the design, implementation, and author experiences for 1 year's use of a low‐cost PACS based on network‐attached storage. The system described here was easi ...
... An 8‐year‐old, intact Rottweiler‐female dog presented due to an acute onset of lethargy, abnormal gait, and wheezing. Physical examination revealed stridor, cervical pain, and ambulatory tetraparesis. Magnetic resonance imaging‐examination displayed a lobulated, fluid‐filled mass extending from the sphenoid bone to C5, infiltrating the cranial vertebral canal causing extradural compression of the ...
... Intracranial abscessation is a life‐threatening condition in dogs and cats, and rapid diagnosis is important for prognosis and treatment planning. The aims of this retrospective, single‐center, case series study were to describe clinical and MRI diffusion‐weighted imaging characteristics in three dogs and three cats with presumed or confirmed intracranial abscessation. All lesions appeared hyperin ...
... Radiology workers might constantly be exposed to low-dose ionizing radiation due to their profession. Low doses of radiation in a short exposure time have the potential to alter the genome, which might potentially lead to diseases. The main objective of this study was to determine whether the amount of cell-free nucleic acids in plasma samples of radiation-exposed workers was different from the ge ...
... Ultrasonographic morphometry of wall layers is commonly used in veterinary patients with suspected small intestinal disease, however published studies comparing this method with histopathology in horses are limited. This prospective, methods comparison study compared the qualitative and quantitative characteristics of small intestinal wall layers using ex vivo high‐frequency ultrasound versus hist ...
... Individually tagged Atlantic salmon postsmolts (≈1200 g, 46 cm) reared in triplicate indoor holding tanks were fasted for 8 weeks at 12 °C and subsequently refed for 5 weeks, whereafter they were transferred to triplicate sea cages in a common garden setup together with a continuously fed control group until harvest size of ≈6100 g and 73 cm. At the end of the fasting period fish had lost 7.3% mas ...
... A 9‐year‐old dog was presented with hematuria and urinary incontinence. Ultrasonography revealed multiple mobile echogenic ball‐shaped structures without distal acoustic shadowing within the lumen. A cystocentesis was performed and a urinalysis of the urine revealed fungus. Candida albicans was identified using an additional urine culture. The patient was finally diagnosed with fungal cystitis wit ...
Wilfried Mai; Emily E. Burke; Jennifer A. Reetz; Silke Hecht; Matthew Paek; Molly E. Church; Stephen R. Werre; Christopher L. Mariani; John F. Griffin; Eric N. Glass
... Intracranial extra‐axial histiocytic sarcoma shares common MRI features with meningioma. As histiocytic sarcoma carries a generally worse prognosis than meningioma, the ability to differentiate between these two neoplasms is of clinical value. The aim of this retrospective diagnostic accuracy and observer agreement study was to evaluate the accuracy and reliability of high‐field MRI to differentia ...
... Previous studies have reported evidence that thoracolumbar articular process hyperplasia and degenerative joint disease may be a cause of stenotic myelopathy in large breed dogs; however, detailed descriptions of imaging characteristics are currently lacking. The aim of this retrospective, multi‐center, case series report was to describe imaging findings in six large breed dogs diagnosed with thor ...
... Abdominal organ displacement is a potentially life‐threatening condition in horses. Primary care veterinarians commonly make referral decisions based on a combination of clinical and ultrasonographic findings. However, published studies describing the effects of transducer on identifying abdominal organ locations in horses are currently lacking. The objective of this prospective, methods compariso ...
Brad Cotter; Lesley A. Zwicker; Cheryl Waldner; Elissa Randall; Jerome Gagnon; Sheldon Wiebe; Eli B. Cohen; Adrien‐Maxence Hespel; Marie de Swarte; Monique N. Mayer
... Mandibular and medial retropharyngeal lymph nodes are routinely evaluated with CT when staging dogs with oral melanomas. While size alone is considered inadequate for detecting nodal metastasis, it is critical in evaluating treatment response, as clinical decisions are based on changes in size. It is common for different radiologists to measure the size of pre‐ and posttreatment lymph nodes in the ...
... Dogs with congenital intrahepatic portosystemic shunts (IHPSS) occasionally have multiple smaller intrahepatic, tortuous blood vessels surrounding the primary shunt. This study was a retrospective, observational design that was also descriptive and anatomic in nature. Objectives were to characterize vascular morphology in IHPSS dogs presenting with intrahepatic venous collaterals (IVCs) relative t ...
... The gallbladder is routinely evaluated during ultrasonographic examinations in dogs. However, published studies describing the effects of sedative agents on gallbladder wall thickness are currently lacking. The aims of this prospective, blinded, randomized crossover pilot study were to test hypotheses that IV morphine would result in gallbladder wall thickening, that morphine administration would ...
... A 10‐month‐old male Saarloos Wolfdog was presented with a history of multiple neurologic deficits that had acutely progressed. Neurologic examination findings localized signs to the cerebrum and brainstem. Magnetic resonance imaging revealed markedly enlarged and gas‐filled lateral ventricles with a mass effect leading to cerebellar herniation. A right‐sided defect of the cribriform plate with a d ...
Claudia Mallol; Rodrigo Gutierrez‐Quintana; Gawain Hammond; Daniela Schweizer‐Gorgas; Steven De Decker; Rosa Novellas; Yvonne Espada; Anna Oevermann; Maria Ortega; Andrew Parry; Ana Maria Coelho; Rita Gonçalves; Catherine Stalin; Josep Brocal
... Hemangiosarcoma is the most common metastatic tumor involving the brain in dogs but detailed published descriptions of the magnetic resonance imaging (MRI) features are lacking. The objective of this multi‐center, retrospective case series study was to describe MRI characteristics of canine hemangiosarcoma affecting the central nervous system (CNS). Medical records of seven referral institutions w ...
aorta; body condition; body size; body weight; cortex; fibrosis; kidneys; radiology; standard deviation; surface area; ultrasonics
Abstract:
... The renal cortical thickness (RCT) reflects the pathological condition of the kidney, and measuring this parameter can help diagnose renal fibrosis in dogs. The normal reference range of RCT in dogs is broad (3–8 mm) because of the extreme diversity in body size. Therefore, this retrospective, reference interval, and observational design study aimed to establish a normal reference range for RCT in ...
... Postoperative radiation therapy (RT) may be beneficial for dogs with anal sac apocrine gland adenocarcinoma (ASAC). Clinically significant late toxicities have been reported in up to 65% of dogs with perianal tumors following non‐conformal definitive RT, particularly when fractions of 3 Gy or higher are prescribed. The primary objective of this prospective, descriptive study was to evaluate tolera ...
... The use of radiation for the diagnosis of various medical conditions is ubiquitous in veterinary medicine, and manual restraint of a patient during X‐ray exposure has become commonplace. Many prospective veterinary students have been involved with radiographs in general practice prior to veterinary school. Their experiences and level of safety training are largely unknown. This prospective survey ...
... Ovariohysterectomy is a common surgical procedure performed on female dogs throughout the world. One rare complication is the development of granulomas as a reaction to sutures. Granulomas can grossly and on diagnostic imaging mimic neoplasia, which can present a diagnostic challenge. We present a rare case of ovarian suture granuloma, which resembled a tumor on diagnostic imaging. A 5-year-old, s ...
... This study aims to investigate the effect of Polygonum odoratum leaf extract (POE) on oxidative stress markers and cell death induced by low dose ionizing radiation (LDIR) in Raw 264.7 cells. The biological activities, chromatographic fingerprint, and cytotoxicity of POE were investigated. To determine the radioprotective effect of POE, Raw 264.7 cells were incubated with POE for 1 hr prior to 100 ...
... A 7‐year‐old Thoroughbred gelding presented with a history of mild unilateral right‐sided epistaxis and facial swelling over the right caudal maxillary sinus and zygomatic arch. Eleven months previously a progressive ethmoid hematoma had been surgically removed from the right caudal maxillary and conchofrontal sinus. Computed tomography identified a large expansile soft‐tissue attenuating mass in ...
... Cardiac disease in guinea pigs has been reported in the literature; however, reference intervals for normal radiographic heart size obtained using objective measurement methods have not been provided for this species. The aim of this prospective, reference interval study was to describe cardiac dimensions in presumed healthy guinea pigs using the vertebral heart scale (VHS) from thoracic radiograp ...
computed tomography; endoscopy; gastrointestinal system; medical history; radiology; retrospective studies
Abstract:
... Laparoscopic sleeve gastrectomy (SG) is the most commonly performed bariatric procedure. The primary and insidious early post-SG complication is the gastric leak (GL). In literature, there are many studies describing the endoscopic stent placement as treatment of GL and few studies about stent placement performed by interventional radiology under fluoroscopic guide. Our aims were to describe the r ...
automation; data collection; dogs; quantitative analysis; radiography; radiology; ultrasonics
Abstract:
... Canine sacroiliac (SI) joint subluxation or luxation is most commonly diagnosed based on qualitative radiographic assessments. Aims of this two‐part, retrospective, diagnostic accuracy, pilot study were to develop and evaluate a novel quantitative method based on measuring the angle between a line connecting the iliac wings and parallel lines across three anatomical landmarks (cranial endplate of ...
... Doppler ultrasonography is used in the evaluation of hemodynamics, and the resistivity (RI) and pulsatility (PI) indexes provide information about resistance to blood flow within a vessel. This systematic review was carried out to evaluate renal RI and PI in clinically healthy and nonsedated cats and as well as their usefulness in the evaluation of kidney disease in cats. An electronic search in t ...
... OBJECTIVE: To provide a structured understanding of rural hospital‐based emergency care facility workforce and resources. DESIGN: The resources of regional training hubs were used to survey eligible emergency care facilities in their surrounding region. SETTING: Rural emergency care facilities manage more than one third of Australia's emergency presentations. These emergency care facilities includ ...
... Shear wave elastography (SWE) has been applied as a noninvasive method for predicting regional lymph node (LN) metastases in human and veterinary patients. However, published studies describing standardized protocols and repeatability of this technique are currently lacking. The objective of this prospective, pilot, observer agreement study was to determine whether different shear wave velocity (S ...
... Numerous studies have revealed strong relationships between COVID-19 and inflammation. However, the imminent link between diet-related inflammation and the COVID-19 risk has not been addressed before. So, we explored the capability of the Energy-Adjusted Dietary Inflammatory Index (E-DII) to predict the inflammatory markers, incidence and severity of COVID-19. We conducted a case-control study con ...
... Elastography is an emerging imaging modality for characterizing tendon injury in horses, but its ability to differentiate tissue deformability relative to treatment group and biochemical properties using a prospective, experimental study design remain unknown. Objectives of the current study were to (a) to investigate differences in glycosaminoglycan, DNA, and soluble collagen levels in mesenchyma ...