Journal of veterinary internal medicine · 2021
Use of contrast-enhanced computed tomography to detect kidney infarction in dogs.
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Sutthigran Somchin, Saisawart Phasamon, Klaengkaew Auraiwan, Horoongruang Kongthit, Chaivoravitsakul Nardtiwa, Komin Kiatpichet, Thanaboonnipat Chutimon, Choisunirachon Nan
Аннотация
BACKGROUND: Kidney infarction is a renovascular disease diagnosed by contrast-enhanced computed tomography (CECT) in humans.
OBJECTIVES: To describe the frequency of kidney infarction and to determine the detection of kidney infarction with CECT in dogs.
ANIMALS: Eight hundred and twenty-six abdominal CECT studies of 826 dogs.
METHODS: A cross-sectional retrospective study. Dogs with abdominal CT scans including CECT were retrospectively retrieved. Kidney infarction was classified into 3 grades based on the extent of infarction relative to total kidney area. The location and number of kidney infarctions in each kidney were expressed as number and percentage. The ability of visualization of kidney infarction in each multiplanar reconstruction (MPR) image plane was evaluated by agreement of 2 observers.
RESULTS: The frequency of kidney infarction in dogs was 3.15% (26/826 dogs; 95% CI = 2.05-4.61). Most kidney infarctions were classified as grade 1, or the lesions were less than 25% of the kidney (47/56, 83.93%) and most were detected at the caudal pole of the kidney (31/56, 55.35%) on the sagittal plane. On MPR image planes, the sagittal plane had the highest proportion (34/56, 60.71%) of excellent visual category to detect kidney infarction.
CONCLUSIONS AND CLINICAL IMPORTANCE: The CECT, especially the sagittal plane, is a useful diagnostic tool for the detection of kidney infarction in dogs.
OBJECTIVES: To describe the frequency of kidney infarction and to determine the detection of kidney infarction with CECT in dogs.
ANIMALS: Eight hundred and twenty-six abdominal CECT studies of 826 dogs.
METHODS: A cross-sectional retrospective study. Dogs with abdominal CT scans including CECT were retrospectively retrieved. Kidney infarction was classified into 3 grades based on the extent of infarction relative to total kidney area. The location and number of kidney infarctions in each kidney were expressed as number and percentage. The ability of visualization of kidney infarction in each multiplanar reconstruction (MPR) image plane was evaluated by agreement of 2 observers.
RESULTS: The frequency of kidney infarction in dogs was 3.15% (26/826 dogs; 95% CI = 2.05-4.61). Most kidney infarctions were classified as grade 1, or the lesions were less than 25% of the kidney (47/56, 83.93%) and most were detected at the caudal pole of the kidney (31/56, 55.35%) on the sagittal plane. On MPR image planes, the sagittal plane had the highest proportion (34/56, 60.71%) of excellent visual category to detect kidney infarction.
CONCLUSIONS AND CLINICAL IMPORTANCE: The CECT, especially the sagittal plane, is a useful diagnostic tool for the detection of kidney infarction in dogs.