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Computed Tomography

Computed Tomography is an advanced diagnostic imaging technique, based on X-ray scanning, that produces very precise images of axial sections of the body. A CT scan works much like other x-ray exams, but instead of getting a single image like conventional x-rays, CT scans get multiple images by rotating around the patient's body.

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From all these transverse (axial) images, a computer reconstructs a two-dimensional image that allows sections of the patient to be seen from any angle.

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With helical CT, during triggering, the table with the patient progressively advances through the gantry while the x-ray tube spirals around it. This difference with respect to standard CT involves the permanent acquisition of information, which increases speed and reduces exposure time. The cuts have greater precision (1mm thick cuts can be obtained), better distinguishing the anatomical structures. Thanks to their higher resolution and contrast, they provide more detailed information.

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Multi-crown or multi-slice CT incorporates several rings of detectors that further increase speed, obtaining volumetric images in real time and high-quality three-dimensional reconstructions.

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Advantages of CT studies

TheHelical Computed Tomography will soon be the diagnostic method of choice in veterinary medicine, due to its speed, reliability and diagnostic versatility, to accurately define complex medical situations, and obtain all the information necessary to determine the appropriate therapy, including surgical planning and the staging of processes.

  • It is a non-invasive technique

  • It is a very quick test, the acquisition of the entire body of a patient can take approximately 60 seconds, and it can be performed, subsequently and in the patient's absence, as many reconstructions of any area as necessary.

  • It offers sharpness of images that have not yet been surpassed with magnetic resonance imaging, such as the visualization of lymph nodes, bone, etc.

  • Ability to "capture" the contrast in the phase of maximum opacification, allowing excellent images to be obtained in computerized angiophragms (shunts, carotid, renal, etc.).

  • Volumetric data acquisition, which adds THREE-DIMENSIONAL (3D) RECONSTRUCTIONS to conventional axial images, which are of primary importance for planning surgeries.

  • Possibility of achieving NON-INVASIVE ENDOSCOPIC VISION (virtual endoscopy) in hollow organs such as the colon, trachea, bladder, etc.

  • Diagnostic enhancement in abdominal examinations with an injection pump, which makes it possible to perform BIPHASIC HELICAL ABDOMINAL CT (arterial/venous), indicated in the determination of nodular lesions of the solid organs of the abdomen (liver, kidney and pancreas), since Hypevascularized lesions are more easily determined in the arterial phase, whereas hypovascularized lesions are better detected in the venous phase, where the surrounding normal parenchyma has high staining. All of these advantages significantly increase the precision of the diagnostic method and allow the smallest lesions to be detected.

  • Reduced radiation exposure due to the ability to subsequently calculate the sectional distance by computer without having to take additional sectional views of the patient

  • CT is less sensitive to patient movement than MRI.

  • CT can be performed if the patient has a medical device implant of any type, unlike MRI.

Indications

Skull

  • Cerebrovascular accident

  • Subarachnoid hemorrhage

  • Cranial hemorrhage

  • Trauma (fractures, bruises, contusions) 

  • Metastasis

  • Brain tumors

  • Vascular malformations

  • Malformations

  • Parasitosis

  • paranasal sinuses images

  • Ear diseases, tympanic bullae

  • Mastoiditis

  • Salivary lithiasis

Spine

  • intervertebral discs

  • Canal stenosis spinal

  • Osseous stenosis of the neuroforamina

  • Noxas/fractures

  • Tumors

  • Metastasis

  • Spondylolisthesis

Orbit

  • Endocrine ophthalmopathy.

  • Orbital pseudotumor.

  • Orbital tumors.

  • Vascular injuries.

  • Orbital trauma. 

  • Orbital infections.

Neck

  • Extension of laryngeal tumors.

  • Strange bodies.

  • Retropharyngeal abscess.

 Lung and mediastinum

  • Hidden metastases.

  • Lung nodules.

  • Pleural lesions.

  • Postpneumonectomy study.

  • Extension of lung carcinoma.

  • Vascular malformations of the lung or hilum.

  • Diffuse lung diseases with negative conventional radiology.

Liver

  • Study of space-occupying injuries:

    • Primitive neoplasms.

    • Metastasis.

    • Cysts.

    • Abscesses.

    • Trauma, bruises.

  • Study of diffuse diseases with fatty infiltration.

    • Hepatic cirrhosis.

  • Vascular conditions

    • Portal vein thrombosis

    • Hepatic arterial obstruction

    • Hepatic vein occlusion.

Mediastinum

  • Mediastinal masses.

  • Widened mediastinum.

  • Vascular injuries.

  • Extension of tumors.

  • lymphadenopathy.

  • Myasthenia gravis.

  • Superior vena cava syndrome.

 Bile ducts

  • Study of jaundice syndrome.

  • Congenital anomalies.

  • Acquired anomalies.

 Pancreas

  • Acute pancreatitis.

  • Chronic pancreatitis.

  • Pancreatic tumors.

 Adrenals

  • Mass study.

  • Study of functioning syndromes: Cushing, Crohn, adrenocortical syndrome.

Ovaries

  • Benign tumors. Teratomas.

  • Ovarian cysts.

  • Abscesses.

  • Malignant tumors: cystadenoma-carcinoma.

Uterus

  • Uterine malpositions.

  • Abscesses.

  • Endometrial carcinoma.

  • Carcinoma of the cervix.

  • Endometriosis.

  • Uterine myoma.

  • Pyometra

Oncology

  • Tumor diagnosis.

  • Determination of tumor extension.

  • Radiotherapy treatment planning.

  • Tumor monitoring.

Spleen

  • Trauma: subcapsular hematoma.

  • Masses occupying space.

 Kidneys

  • Study of solid masses.

  • Tumor staging.

  • Recurrences of hypernephroma.

  • Perineal and renal abscesses.

  • Non-functioning kidney.

  • Trauma.

Bladder

  • Diagnosis of tumor extension

Prostate

  • Diagnosis of tumor extension.

  • Prostatitis

Traumatology

  • Acetabulum fractures.

  • Primary bone tumors.

  • Metastatic bone tumors.

  • Joint alterations.

  • Complicated fractures.

  • CT densitometry.

Other indications

  • Location for biopsy.

  • Location for drains.

  • Location for foreign bodies.

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