there were many radiographic techniques in imaging of oral cancer such as ct ,PET,MRI
The selection of radiographic imaging for diagnosing oral tumors hinges on factors such as tumor type, location, and diagnostic objectives. Intraoral radiography, including bitewing and periapical views, offers detailed images of teeth and adjacent alveolar bone, revealing early signs of jaw tumors, though its limited field may overlook larger lesions. Panoramic radiography provides a broad overview of the maxillofacial region, suitable for initial screenings but with lower resolution. Cone Beam Computed Tomography (CBCT) offers three-dimensional precision and is particularly useful for assessing bone involvement, albeit with a higher radiation dose. Computed Tomography (CT) provides detailed cross-sectional images for evaluating bone invasion and tumor size, while Magnetic Resonance Imaging (MRI) excels in soft tissue characterization without ionizing radiation. Nuclear medicine techniques like Positron Emission Tomography (PET) assess metabolic activity, aiding in distinguishing benign and malignant lesions. The choice of modality depends on the clinical context, balancing imaging depth, resolution, and potential radiation exposure. Collaboration between specialists ensures a comprehensive and accurate diagnostic approach.
Hello Dr Romissaa Ali Esmail
CT and MRI are complementary in imaging oral tumours, and more broadly, for the assessment of head and neck pathology. A lot of people automatically think you only do MRI. You definitely should if you vcan and should do CT as well.
MRI is better at characterising local tumour extent as well as assessing for bone marrow involvement.
Beil CM, Kerberle M. Oral and oropharyngeal tumours. Eur J Radiol 2008;66:448–59.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3473765/
It is also better at detection of perineural spread.
Caldemeyer KS, Mathews VP, Righi PD, Smith RR. Imaging features and clinical significance of perineural spread or extension of head and neck tumors. Radiographics 1998;18:97–110.
https://pubs.rsna.org/doi/10.1148/radiographics.18.1.9460111?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed
CT is readily accessible in most facilities and practices. It has faster image acquisition. It also provides better assessment of cortical bone involvement.
Stambuk HE, Karimi S, Lee N, Patel SG. Oral cavity and oropharynx tumours. Radiol Clin N Am 2007;45:1–20.
That is also a good overview of your topic.
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