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Following neurological examination, if the presenting problem is identified to be located in the spine, survey radiographs of the vertebral column (spine) can provide very important information. The vertebral column is composed of individual vertebra and each is slightly different in shape due to change in function at different levels of the column. There are seven cervical (neck) vertebra, thirteen thoracic vertebrae (chest), seven lumbar vertebrae (abdomen), three sacral vertebra- fused (pelvis), and multiple coccygeal vertebra (tail). Between each vertebra is an intervertebral disc which functions to allow restricted movement of the spine.

Radiographs are generally inexpensive, readily accessible, and are rapidly acquired. Radiography of the vertebral column is particularly useful when a disease or abnormality is of the vertebrae itself, or results in displacement of the vertebrae. Some examples of diseases include: malformations of the vertebrae, vertebral fractures or luxations, tumors (cancer) affecting the bone causing destruction or proliferation of bone, or bone infection causing loss of bone. Some diseases may cause mild changes to the bone or width of the intervertebral disc space such as intervertebral disc extrusion or protrusion. Care should be taken not to over interpret survey spinal radiographs in intervertebral disc disease. The utility of radiographs should not be underestimated especially where there is concern for column instability such as fracture or luxation.

Each vertebra has a complex three-dimensional shape, and yet imaging with radiography provides only two dimensional images of these complex structures. Consistency and care regarding the positioning of the patient and radiographic technique (x-ray beam energy) is essential because otherwise subtle abnormalities may be overlooked or normal structures may be misinterpreted as being abnormal. It is important to collect images in at least two planes (orthogonal): lateral (lying on the side) and dorsoventral (lying on the back), unless column instability is likely (trauma). Oblique images between these two orthogonal planes may also be used. To adequately position an animal, supportive devices such as foam pads may be required. Adequate sedation and pain control, or preferably, anesthesia is needed for good radiographs of the column. Manual restraint should not be performed as it is important that the technician not remain in the room when the radiograph is taken. Continued exposure to high levels of ionizing radiation (x-rays) is harmful, and for this reason, there is NO reason a technician should be exposed to the x-ray beam or scatter radiation.

Limitations of survey column radiography are that only the bony elements are adequately imaged; the spinal cord, nerve roots and meninges (covering spinal elements) are not able to be visualized. For this reason, additional advanced diagnostic techniques are used such as myelography, computed tomography and magnetic resonance imaging.

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Diagnostic Imaging

VCA ASEC has two full time, on site board-certified Veterinary Radiologists, Dr. Jean Reichle and Dr. David Szabo. The two specialists provide interpretation of radiographs (x-rays) from your referring veterinarian as well as those taken at VCA ASEC. We also perform ultrasound examinations of the abdomen, thorax, joints and muscles. Our 16 slice digital helical CT scanner provides 3-dimensional analysis of various body parts including the head, chest, abdomen, and spine, for diagnostic purposes or pre-surgical planning. All of our imaging modalities are digital and linked to an archive for easy access in-hospital or remotely. Radiographs, ultrasound, and CT exams may be scheduled on an outpatient basis as well.

Radiology Department Services:

• Digital Radiography and Flouroscopy
• GE LOGIQ P6 Premium Digital Ultrasound
• GE 16 Slice Brightspeed CT scanner
• Ultrasound and CT Guided Aspirates and Biopsies

Our Diagnostic Imaging Services

Diagnostic Imaging Overview
Neuroradiology
Abdominal Ultrasonography Abdominocentesis and Cystocentesis
Computed Tomography CT Scanning

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