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Computed tomography (CT) is a sophisticated imaging technique that utilizes multiple, narrow beams of x-ray radiation directed around a single rotational axis. This method captures a comprehensive series of two-dimensional images of the heart from various angles. The data collected is then processed by a computer to digitally reconstruct a three-dimensional image of the heart, allowing for the production of thin, cross-sectional images, also known as slices. The CT procedure can be performed with or without the administration of contrast material, which enhances the visibility of the heart structures as the contrast agent circulates through the heart. A critical component of this imaging technique is cardiac gating, which addresses the challenge of capturing clear images of the heart, particularly the coronary arteries, while the heart is in motion. During cardiac gated imaging, the scanner remains inactive while the heart beats, activating only during brief moments when the heart is at rest. This approach not only yields sharp, high-resolution images but also significantly reduces the radiation exposure to the patient. The CPT® Code 0150T specifically reports on cardiac CT imaging that includes the use of contrast material, the acquisition of noncontrast images if performed, the application of cardiac gating, and the postprocessing of three-dimensional images, all aimed at evaluating the cardiac structure and morphology in patients diagnosed with congenital heart disease.
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The procedure is indicated for the evaluation of cardiac structure and morphology in patients with congenital heart disease. This imaging technique is particularly useful for diagnosing and assessing various congenital anomalies of the heart, providing critical information that can guide treatment decisions and management strategies.
The procedure begins with the patient being positioned appropriately on the CT scanner table, ensuring comfort and stability. Once the patient is ready, an intravenous (IV) line is established to administer the contrast material, which enhances the visibility of the heart structures during imaging. The CT scanner is then calibrated, and the patient is instructed to hold their breath at specific intervals to minimize motion artifacts during image acquisition. The scanner utilizes cardiac gating technology, which synchronizes the image capture with the cardiac cycle. This means that the scanner remains inactive while the heart is beating and activates only during the diastolic phase when the heart is at rest, allowing for the capture of high-resolution images. The imaging process includes both contrast-enhanced and noncontrast images, if applicable, to provide a comprehensive view of the heart. After the imaging is completed, the data is processed using advanced software to create three-dimensional reconstructions of the heart, allowing for detailed analysis of its structure and morphology.
After the completion of the CT imaging, the patient may be monitored briefly to ensure there are no immediate adverse reactions to the contrast material. It is important to provide the patient with post-procedure instructions, which may include hydration recommendations to help flush the contrast agent from their system. The results of the imaging study will be analyzed by a radiologist or a qualified physician, who will interpret the images and provide a detailed report on the findings related to the cardiac structure and morphology. Follow-up appointments may be scheduled to discuss the results and any necessary further evaluations or treatments based on the findings.
| Short Descr | CCTA W/WO, DISEASE STRXR | Medium Descr | CCTA W/WO, DISEASE STRXR | Long Descr | CT HRT STRUX MORPHOLOGY CGEN HRT DS | APC Status Indicator | Significant Procedure, Not Discounted When Multiple | Type of Service (TOS) | 4 - Diagnostic Radiology | Berenson-Eggers TOS (BETOS) | none | MUE | Not applicable/unspecified. | CCS Clinical Classification | 180 - Other CT scan |
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