To investigate the clinical application value of 64 slice spiral CT head and neck CT angiography (CTA) in the diagnosis of head and neck vascular lesions.

80 patients with suspected head and neck vascular disease in our hospital from June 2024 to December 2025 were selected as the research object. All patients underwent 64 slice spiral CT head and neck CTA examination and digital subtraction angiography (DSA) examination. The detection performance, diagnostic efficacy indicators, examination-related indicators, and incidence of adverse reactions of 64-slice spiral CT head and neck CTA technology were evaluated for various types of head and neck vascular lesions.

There was no statistically significant difference in the detection performance of various types of head and neck vascular lesions between the two examination methods (P>0.05). Using surgical pathology results or clinical comprehensive diagnosis as the gold standard, the sensitivity, specificity, and accuracy of 64-slice spiral CT head and neck CTA technology were 93.94%, 100.00%, and 95.00%, respectively, compared with those of DSA (96.97%, 100.00%, and 97.50%), there was no statistically significant difference (P>0.05). The examination time [(12.35±3.18) min], radiation dose [(320.45±50.63) mGy·cm] and contrast agent dosage [(35.76±4.32) mL] of 64 slice spiral CT head and neck CTA were lower than those of DSA [(35.67±5.42) min, (650.32±80.45) mGy·cm, (58.63±6.27) mL], and the difference was statistically significant (P<0.05). The incidence of adverse reactions of 64 slice spiral CT head and neck CTA was 2.50%, which was lower than 11.25% of DSA, and the difference was statistically significant (P<0.05).

The application of head and neck CTA technology in the diagnosis of head and neck vascular disease can improve the diagnostic accuracy and diagnostic efficiency through the advantages of 64 slice spiral CT, and has the advantages of rapid examination, low radiation dose, low dosage of contrast agent, high safety and so on, which can be used as one of the preferred schemes for the clinical diagnosis of head and neck vascular disease.