J Korean Radiol Soc.
1995 Nov;33(5):699-704.
Head and Neck Tumors and Neck Node Metastasis: Comparison of Ga-67 Scan and CT Findings
Abstract
- PURPOSE
To assess relative diagnostic value of Ga-67 planar, Ga-67 SPECT, and CT images for detection of head and neck tumors and cervical lymph node metastasis.
MATERIALS AND METHODS
Thirty eight patients of pathologically proven head and neck tumors including squamous cell carcinomas(n=32), malignant lymphomas(n=3), undifferentiated carcinomas(n=2), adenocarcinomas(n=l) were enrolled in this study. Ga-67 planar and SPECT images were obtained with intravenous injection of 5mCi of Ga-67 citrate. On the basis of 30 and 20 mm in the greatest diameter of cervical lymph nodes, we compared lesion detectability of Ga-67 planar, SPECT, and CT.
RESULTS
Thirty eight cases of head and neck tumors were detected in 29 cases(76.3%) with Ga-67 planar image, 37 cases(97.3%) with Ga-67 SPECT, and 32 cases(84.2%) with CT. 25 of 32 squamous cell carcinomas were positive with Ga-67 planar image and all of 32 cases with Ga-67 SPECT. Both of two undifferentiated carcinomas were positive with Ga-67 planar and SPECT images. Two of three malignant lymphomas were positive with Ga-67 planar image and all of three with Ga-67 SPECT. Eight of nine tumors were negative with Ga-67 planar image and those were less than 30ram. One case of adenocarcinoma was negative with Ga-67 planar and SPECT images. Seven of nine lymph nodes greater than 30mm were positive with Ga-67 planar image and all of nine with Ga-67 SPECT. On the basis of 20mm in greatest diameter, 16 of 21 lymph nodes greater than 20 mm were positive with Ga-67 planar and SPECT images.
CONCLUSION
CT providing better resolution than Ga-67 scan permitted analysis of size and location of metastatic cervical nodes, however primary tumors of oral cavity, vocal cord, and nasopharynx were often not detected on CT when metallic and motion artifacts were present, where Ga-67 SPECT was useful. Ga-67 SPECT enabled better anatomical localization than Ga-67 planar image and was useful in detection of lymph nodes greater than 30 mm.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- A study for the incidence of neck metastasis in head and neck cancer
- Two Cases of Transoral Resection of Retropharyngeal Lymph Node Metastasis from Papillary Thyroid Carcinoma Diagnosed by PET-CT Follow-Up after Lateral Neck Dissection
- Value of 18F-Fluorodeoxyglucose Position Emission Tomography/Computed Tomography in Diagnosis of Cervical Lymph Node Metastasis of Head and Neck Squamous Cell Carcinoma: Comparison with Computed Tomography and Magnetic Resonance Imaging
- Sentinel Lymph Node Biopsy in the Oral Cavity Cancer
- Sentinel Lymph Node Centered Selective Neck Dissection Does Not Have Benefits Over Supraomohyoid Neck Dissection in Patients with cT1T2N0 Tongue Cancer
