CT-Guided Needle Biopsy Achieves 93.4% Diagnostic Yield for Deep Neck Lesions
A recent study reveals the effectiveness of CT-guided core needle biopsy in diagnosing challenging lesions in the deep neck.
CT-guided core needle biopsy shows a diagnostic yield of 93.4%.
The procedure is particularly effective for lesions unsuitable for ultrasound guidance.
73% of biopsies were benign, with salivary gland tumors being the most common.
A groundbreaking study has confirmed the efficacy of CT-guided core needle biopsy (CNB) as a reliable diagnostic method for deep neck lesions that are difficult to assess using traditional ultrasound techniques. Conducted at a single medical center, the research analyzed biopsy procedures performed from January 2005 to August 2024, focusing on patients with suspected neoplastic, inflammatory, or infectious lesions in the head and neck region.
The study encompassed 122 biopsy procedures involving 118 patients, gathering critical data such as age, sex, lesion characteristics, and procedural outcomes. In instances where ultrasound guidance was inadequate, radiologists opted for CT-guided CNB, utilizing an 18-gauge core needle under sterile conditions and local anesthesia. Post-procedural CT imaging was routinely conducted to monitor for complications like hemorrhage or damage to surrounding structures.
The findings revealed that 94.3% of the CT-guided CNB procedures were performed in the suprahyoid space, with the remaining 5.7% in the infrahyoid neck. The diagnostic yield was notably high at 93.4%, with sensitivity and specificity rates of 86.2% and 100%, respectively. Among the biopsies, 73% were classified as benign, predominantly involving salivary gland tumors, while 20.5% were malignant, primarily consisting of metastatic tumors.
Exploratory analysis indicated that the size of the lesion did not significantly affect the diagnostic success, suggesting that CT-guided CNB is applicable across various lesion sizes in complex anatomical regions. The study concluded that this method serves as a valuable adjunct to ultrasound-guided techniques when they are not feasible. Although surgical confirmation was available for only 31% of cases, other diagnoses were based on clinical and imaging follow-ups, with 6.6% of biopsies yielding inconclusive results, highlighting the need for further investigation into the reliability of CT-guided CNB in diverse clinical scenarios.
This research significantly enhances the diagnostic capabilities available to interventional radiologists, particularly in challenging cases involving intricate head and neck anatomy.
