COMPARATIVE PERFORMANCE OF RADIOGRAPHY AND COMPUTED TOMOGRAPHY IN THE DIAGNOSIS OF MIDDLE EAR DISEASE IN 31 DOGS     

JACOB J. ROHLEDER  JERYL C. JONES  ROBERT B. DUNCAN  MARTHA M. LARSON  DON L. WALDRON  TONYA TROMBLEE 《Veterinary radiology & ultrasound》2006,47(1):45-52

The purpose of this study was to compare computed tomography (CT) and radiography for diagnosing the presence and severity of middle ear disease in dogs with a history of chronic otitis externa. Thirty-one dogs undergoing a total ear canal ablation and bulla osteotomy were studied. Three normal dogs served as controls. All dogs were examined using radiography and CT. Three radiologists independently evaluated imaging studies in random order. A visual analog scale method was used for scoring certainty and severity of middle ear disease. Surgical findings were recorded intra-operatively. Bulla lining samples were submitted for histopathologic evaluation and scored by a single pathologist who also used a visual analog scale system. Findings from both imaging modalities agreed more closely with surgical findings than with histopathologic findings. With either surgical or histopathologic findings as the gold standard, CT was more sensitive than and as specific as radiographs for predicting presence and severity of middle ear disease. Observer performance with CT was more consistent than the performance with radiographs in the detection of changes that occur with middle ear disease. Both radiography and CT were more accurate for predicting the severity of the disease than its presence. Findings indicate that CT is more accurate and reliable than radiography in diagnosing middle ear disease for dogs having concurrent otitis externa, but only when severity of disease is moderate or high. With low severity of disease, diagnostic certainty for both modalities becomes more variable.  相似文献   

Do patterns of Steller sea lion (Eumetopias jubatus) diet, population trend and cetacean occurrence reflect oceanographic domains from the Alaska Peninsula to the central Aleutian Islands?     

ELIZABETH H. SINCLAIR  SUE E. MOORE  NANCY A. FRIDAY  TONYA K. ZEPPELIN  JANICE M. WAITE 《Fisheries Oceanography》2005,14(S1):223-242

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ASSOCIATION BETWEEN CLINICAL CHARACTERISTICS, COMPUTED TOMOGRAPHY CHARACTERISTICS, AND HISTOLOGIC DIAGNOSIS FOR CATS WITH SINONASAL DISEASE     

TONYA C. TROMBLEE  JERYL C. JONES  ASHLEY E. ETUE  S. DRU FORRESTER 《Veterinary radiology & ultrasound》2006,47(3):241-248

The purpose of this retrospective study was to determine the association between clinical characteristics, computed tomography (CT) characteristics, and histologic diagnosis in 43 cats with sinonasal disease. All cats were evaluated with CT and nasopharyngeal endoscopic examination, with histologic diagnosis based on nasal biopsy. Fifteen cats were diagnosed with sinonasal neoplasia and 28 cats were diagnosed with rhinitis. Clinical characteristics determined to be significantly associated with neoplasia were unilateral ocular discharge (odds ratio [OR] 9.6) and the presence of a nasopharyngeal mass during endoscopic examination (OR 18.9). CT characteristics found to be significantly associated with neoplasia included: unilateral lysis of ethmoturbinates (OR 11.0), unilateral lysis of the dorsal (OR 8.3) and lateral maxilla (OR 6.9), lysis of the vomer bone (OR 6.7) and ventral maxilla (OR 28.8), and bilateral lysis of the orbital lamina (OR 4.1); unilateral abnormal soft tissue/fluid within the sphenoid sinus (OR 15.3), frontal sinus (OR 10.4), and/or and retrobulbar space (OR 12.2). Lysis of the maxillary turbinates, nasal septum, nasal bone, palatine bone, and cribriform plate were not significantly associated with sinonasal neoplasia.  相似文献