Test Duration
15 Minutes
------ To ------30 Minutes
Test Cost
₹ 5,000
------ To ------₹ 8,000
The National Institutes of Health report that the sensitivity of CT angiography in detecting blunt cerebrovascular injury ranges from 66% to 100%. Before looking into that, it's essential to understand the complexities of CT angiography brain anatomy and its relevance to radiology.
Modern imaging centres greatly on CT angiography (CTA) to diagnose vascular diseases in the brain and neck. But how is it performed? What can CT angiography head and neck cost be? Keep reading to find out!
Alternative Name | CTA Brain and Neck / CT: Computed Tomography, Computed tomography angiography - brain, CTA - skull, Stroke-CTA head; Computed tomography angiography - neck; CTA - neck; Vertebral artery - CTA, Vertebrobasilar - CTA |
Prerequisites | Fasting may be advised if contrast dye is used |
Test Done By | Radiologists or trained technicians |
Parameters | Provides detailed cross-sectional images of brain and neck blood vessels |
Report Time | Within 24 hours |
CT angiography brain and neck, or CTA, is a medical imaging procedure that utilises computed tomography (CT) technology. It produces detailed three-dimensional images of blood arteries in the brain and neck.
CT angiography of head and neck anatomy assists in the diagnosis of various neurological and vascular problems. This may include aneurysms (abnormal bulge or swelling in a blood vessel) and stenosis (narrowing or constriction of a blood vessel or any tubular organ).
CT Angiography of the brain and neck is recommended for people who exhibit specific symptoms or conditions. It is also done as a preventive measure for certain high-risk groups. This procedure is typically recommended for:
CT Angiography offers insights into the vascular health of vital regions like the brain and neck. Here are some key advantages:
CT Angiography (CTA) of the brain and neck typically takes 15 to 30 minutes. It is important to follow any specific instructions provided by the doctor. Here's a general overview of the preparation:
As stated before, CT brain/neck angiography is a non-invasive technique that offers a rapid and accurate assessment of blood vessels. Here's an overview of the procedure:
After undergoing a neck and brain angiography CT scan, there are generally no specific aftercare instructions. However, here are some general guidelines to consider:
Typically, the radiologist generates the CT angiography of brain and neck report within hours to a day. This allows for quick diagnosis and treatment planning. The result assesses several factors, including:
The CT angiography report of the brain and neck guides the diagnosis and treatment of vascular and neurological conditions in the brain and neck. Check the interpretations below for a better understanding.
Characteristics | Abnormalities | Interpretation |
Blood Vessel Visibility | Reduced or absent visibility of vessels | May indicate blockages or stenosis |
Vessel Size and Shape | Dilation or irregularities in vessel structure | Suggestive of aneurysms or vascular malformations |
Contrast Flow | Delayed or uneven contrast flow | May indicate stenosis or vascular obstructions |
Aneurysm Presence | Bulges or outpouchings in blood vessels | Possible aneurysms that require further evaluation |
Collateral Vessels | Development of new vessels to compensate for blockages | Sign of chronic vascular issues or occlusions |
Arterial-venous Anatomy | Identification of arterial and venous structures | Essential for assessing the Circle of Willis and blood flow directions |
The treatment plan following CT Angiography of the Brain and Neck depends on the findings and the specific vascular condition identified. Here are some potential scenarios and corresponding treatment options:
CT angiography brain anatomy and neck is generally a safe procedure. However, there are some associated risks and considerations. The major risks include:
It's important to contact a doctor after CT brain/neck angiography if a patient experiences any questionable symptoms. Here are some scenarios when one should contact the doctor:
CT angiography brain costs between ₹ 5,000 and ₹ 8,000 in India. The diagnostic centre and several other factors determine the exact cost.
Test Name | Cost Value |
CT Angiography Brain | ₹ 5,000 and ₹ 8,000 |
CT Angiography Neck | ₹ 5,000 to ₹ 7,500 |
Many components comprise the final cost of CT Angiography of the brain and neck. Listed below are the major factors:
CT angiography remains at the forefront of diagnostic imaging, contributing to better patient care and outcomes. Understanding the CT angiography brain anatomy and the imaging protocol is essential for comprehending the importance of this diagnostic tool.
The top professionals at HexaHealth can guide you through the entire test procedure, including how to interpret the results. Get in touch!
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CT Angiography brain anatomy refers to the detailed imaging of the blood vessels within the brain. It uses computed tomography (CT) technology and provides a visual map of the vascular network within the brain.
The major blood vessels in the brain and neck that can be visualised using CTA are:
Carotid arteries
Vertebral arteries
Circle of Willis
Anterior cerebral arteries
The common variations in the branching patterns of the cerebral arteries are:
Fenestration: Splitting of an artery into two smaller branches
Aplasia or Hypoplasia: Absence or underdevelopment of certain arteries
Accessory Arteries: Additional arteries that are not part of the typical cerebral circulation
Cross-communication: Abnormal connections between arteries
Aberrant Origins: Arteries that arise from different locations
These variations can complicate CTA interpretation. This can potentially lead to misdiagnosis or confusion.
The Circle of Willis is a circle of interconnected arteries at the base of the brain. It's important in CTA imaging of the brain because it ensures continuous blood supply, even if one of the arteries is blocked. It also helps assess blood flow patterns and potential abnormalities in the brain's vasculature.
Variations or anomalies in neck anatomy can impact the assessment of blood flow and the presence of stenosis (narrowing). It can also affect the location of potential vascular abnormalities in the carotid arteries.
The size of the major blood vessels in the brain and neck varies from one individual to another. For instance, in the internal carotid artery, the size can range from 4mm to 7mm. CT angiography (CTA) can detect abnormalities in size by providing detailed cross-sectional images of blood vessels.
The standard CTA protocol for imaging the brain and neck typically involves the intravenous injection of contrast dye. It is followed by cross-sectional imaging with a CT scanner. It often includes 3D reconstructions of the blood vessels.
CT Angiography differs from other imaging modalities as follows:
Uses X-rays and involves radiation exposure, while MRI and conventional angiography do not
Provides quick results, often faster than MRI
Readily offers 3D reconstructions
Less affected by metal implants than MRI
Contrast media is administered intravenously (IV) during a CTA scan. This process is crucial for a detailed evaluation of the blood vessels during a CTA scan.
Risks associated with contrast administration during medical imaging procedures like CTA include:
Allergic reactions
Kidney damage (contrast-induced nephropathy)
Contrast extravasation
Here are the common artefacts in CTA images and their mitigation:
Motion Artefacts: Minimised by patient immobilisation and breath-holding instructions.
Beam Hardening: Corrected with post-processing algorithms and adjusting imaging parameters.
Streak Artefacts: Addressed through software-based correction algorithms.
Metallic Artefacts: Reducing metal in the field of view or using specialised imaging techniques.
A typical CTA scan of the brain and neck takes about 15 to 30 minutes. Factors that can affect scan time include:
The complexity of the study
Patient cooperation
Need for additional scans or sequences
Guidelines for Patient Preparation:
Fasting, if advised.
Informing the doctor of allergies, kidney problems, or pregnancy.
Removal of metal objects and jewellery.
Minimising Patient Motion:
Informing patients about the importance of staying still during the scan.
Using straps or foam pads to minimise patient movement.
Instructing patients to hold their breath when needed.
CT angiography brain costs between ₹ 5,000 and ₹ 8,000 in India. The type of hospital or centre and several other factors determine the exact cost.
The CT Angiography costs are as follows:
For brain: ₹ 5,000 and ₹ 8,000
For neck: ₹ 5,000 to ₹ 7,500
Common findings on CTA images of the brain and neck and their associations with various disease states include:
Aneurysms: Associated with the risk of rupture and hemorrhagic stroke
Stenosis: Can lead to conditions like ischemic stroke or carotid artery disease
Vascular Malformations: Can cause various neurological symptoms
Tumours: Might affect blood flow, potentially linked to brain tumours
CTA is used to diagnose and monitor conditions by providing detailed images of blood vessels in the brain and neck. It can reveal the presence of aneurysms, arteriovenous malformations, and other vascular abnormalities.
Radiologists interpret CTA images of the brain and neck by examining key features such as:
Blood Vessel Anatomy
Blood Flow
Aneurysms
Stenosis
Vascular Malformations
Limitations of CTA Imaging:
Radiation Exposure
Contrast Dye Allergies
Kidney Function Impact
Limited Soft Tissue Detail
Comparatively, MRI has no radiation exposure and excels in soft tissue imaging. Conventional angiography is more invasive and carries risks. However, it provides the highest-quality vascular imaging and therapeutic capabilities.
CTA is often combined with other imaging modalities, such as MRI and conventional angiography. This is done to provide a more comprehensive evaluation of the brain and neck vasculature. This multi-modal approach offers a well-rounded view of vascular anatomy and structural details.
All the articles on HexaHealth are supported by verified medically-recognized sources such as; peer-reviewed academic research papers, research institutions, and medical journals. Our medical reviewers also check references of the articles to prioritize accuracy and relevance. Refer to our detailed editorial policy for more information.
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