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1.
Vet Radiol Ultrasound ; 52(3): 262-9, 2011.
Article in English | MEDLINE | ID: mdl-21342306

ABSTRACT

We aimed to identify common mistakes made when radiographing yearling sale horses. Radiographic examinations from repositories at eight yearling sales held in Australia in 2003 were assessed by one of four veterinary radiology specialists. Each radiographic examination consisted of a maximum of 34 radiographs. Each radiograph was assessed for errors associated with movement, exposure, positioning, labeling or marker placement, and processing, and categorized as either ideal, less than ideal or nondiagnostic. In addition, from the first 800 sets catalogued, 167 were selected randomly and read twice by the four radiologists for agreement analysis. A total of 81,297 radiographs were examined for errors affecting quality. Positioning errors were the most common reason for radiographs to be considered nondiagnostic (2432/81,297; 3%), with the flexed lateromedial (LM) metacarpophalangeal joint, LM metatarsophalangeal joint, and the dorsomedial palmarolateral (DMPaLO) carpal views being the most frequently involved. Overexposure (14,357/81,297; 17.7%) was the most common reason for radiographs being categorized as less than ideal with the LM stifle view the most represented. Agreement within and between radiologists for reporting errors in positioning of the flexed LM metacarpophalangeal joint, LM metatarsophalangeal joint, and DMPaLO carpal views varied from slight to almost perfect. The low repeatability within radiologists on some views suggests that before declaring a radiograph nondiagnostic it is worth considering rereading it at another time. Care should be taken in positioning of the flexed LM metacarpophalangeal, LM metatarsophalangeal, and DMPaLO carpus views to maximize radiograph quality.


Subject(s)
Diagnostic Errors/veterinary , Horses , Radiography/veterinary , Animals , Artifacts , Carpus, Animal/diagnostic imaging , Metacarpophalangeal Joint/diagnostic imaging , Metatarsophalangeal Joint/diagnostic imaging , Stifle/diagnostic imaging , Tarsus, Animal/diagnostic imaging
2.
J Feline Med Surg ; 9(2): 161-7, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17307008

ABSTRACT

Lymphangiosarcoma is a malignant neoplasm of the lymphatic endothelium that is rare in cats. This report describes two cases of feline lymphangiosarcoma that originated in the distal limb, causing intractable lymphoedema and serosanguineous discharge with ecchymoses in local and distant sites. In association with the neoplasia, one cat had cortical bone lysis of multiple metacarpal bones of the affected limb and the other had severe immune-mediated haemolytic anaemia (IMHA). The disease in both cases affected young cats and progressed rapidly. Persistent distal limb lymphoedema with serosanguineous discharge is suggestive of lymphangiosarcoma especially when local or distal ecchymoses are evident.


Subject(s)
Anemia, Hemolytic, Autoimmune/veterinary , Cat Diseases/diagnosis , Dermatitis/veterinary , Lymphangiosarcoma/veterinary , Anemia, Hemolytic, Autoimmune/diagnosis , Animals , Cat Diseases/pathology , Cats , Dermatitis/diagnosis , Diagnosis, Differential , Fatal Outcome , Female , Lymphangiosarcoma/diagnosis
3.
Vet Radiol Ultrasound ; 46(6): 533-5, 2005.
Article in English | MEDLINE | ID: mdl-16396275

ABSTRACT

This report describes the evaluation of cutaneous lymphoma in a cat using 99mTc-sestamibi. A mass in the left pes with extension to the left popliteal lymph node was diagnosed as B-cell lymphoma. Thoracic and abdominal radiography and abdominal ultrasound were unremarkable. Scintigraphy using 99mTc-sestamibi confirmed the lesion was confined to the left hind leg, and the leg was amputated. The cat made a full recovery.


Subject(s)
Cat Diseases/diagnostic imaging , Lymphoma, B-Cell/veterinary , Technetium Tc 99m Sestamibi , Animals , Cats , Lymphoma, B-Cell/diagnostic imaging , Male , Radionuclide Imaging , Technetium Tc 99m Sestamibi/pharmacokinetics , Tissue Distribution
4.
Vet Radiol Ultrasound ; 45(2): 136-8, 2004.
Article in English | MEDLINE | ID: mdl-15072145

ABSTRACT

A 1-year-old working Kelpie developed pneumothorax and focal peritonitis after inhalation of a grass awn that migrated from the lung, through the diaphragm, into the peritoneal cavity. Radiographic evidence of sternal lymph node enlargement was fundamental in the diagnosis of intraperitoneal disease and prompted abdominal ultrasound leading to definitive diagnosis.


Subject(s)
Dog Diseases/diagnostic imaging , Foreign-Body Migration/veterinary , Animals , Diagnosis, Differential , Dogs , Foreign-Body Migration/complications , Foreign-Body Migration/diagnostic imaging , Male , Peritonitis/etiology , Peritonitis/veterinary , Pneumothorax/etiology , Pneumothorax/veterinary , Radiography , Ultrasonography
5.
Vet Radiol Ultrasound ; 44(5): 542-5, 2003.
Article in English | MEDLINE | ID: mdl-14599166

ABSTRACT

Hydrocephalus was diagnosed in a juvenile African Grey parrot by high-field strength (4.7-Tesla) magnetic resonance imaging (MRI). Excellent anatomic detail was achieved, and there was severe dilation of all ventricles. Relative obstruction was localized to the level of or beyond the outflow of the fourth ventricle. There have been several reports of hydrocephalus diagnosed postmortem in psittacines (i.e., hook-billed parrots), however, this is the first report of an antemortem diagnosis in a psittacine using high-field strength MRI.


Subject(s)
Bird Diseases/pathology , Hydrocephalus/veterinary , Parrots , Animals , Cerebral Ventricles , Diagnosis, Differential , Hydrocephalus/complications , Hydrocephalus/pathology , Magnetic Resonance Imaging/veterinary , Male , Seizures/etiology , Seizures/veterinary
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