Article Figures & Data
Figures
- Fig 1.
A 61-year-old female patient with a primary supraglottic laryngeal carcinoma (T4a N2c). Low-tube-voltage acquisition (A) improves tumor attenuation (large arrow) compared with the standard blended 120-kVp image series (B) and also shows a higher contrast and improved depiction of cervical lymph node metastasis (small arrows) (window settings: width, 400 HU; level, 80 HU).
- Fig 2.
A 66-year-old female patient with a vascularized mass (arrow) in the left parotid gland. She underwent excision, and a Warthin tumor was confirmed by histopathology. The increased iodine attenuation with an 80-kVp acquisition (A) results in a distinctly increased image contrast of the mass compared with the standard 120-kVp acquisition (B) (window settings: width, 400 HU; level, 80 HU).
Tables
Indication No. Squamous cell carcinoma 107 Primary staging or detection of suspected squamous cell carcinoma 66 Follow-up to detect tumor recurrence 41 Lymphoma 40 Primary staging or detection of suspected lymphoma 19 Follow-up to detect lymphoma recurrence 21 Benign conditions 23 Suspected benign cervical mass (eg, Warthin tumor, adenoma) 5 Suspected cervical abscess 13 Suspected sialadenitis 3 Suspected branchial cleft cyst 2 Value Global (n = 170) SCC-Related (n = 107) Lymphoma-Related (n = 40)b Benign Conditions (n = 23) 80-kVp image series Sensitivity 94.8% (93.5%–95.4%) 94.8% (91.4%–97.2%) 95.0% 94.3% (88.9%–100.0%) Specificity 93.0% (91.9%–95.1%) 89.1% (86.5%–91.7%) 100.0% 93.3% (80.0%–100.0%) PPV 95.9% (95.3%–97.2%) 94.3% (93.1%–95.8%) 100.0% 98.2% (94.7%–100.0%) NPV 91.1% (89.1%–92.1%) 90.1% (84.6%–94.3%) 95.2% 85.7% (71.4%–100.0%) 120-kVp image series Sensitivity 94.8% (92.6%–96.3%) 95.3% (91.4%–97.2%) 95.0% 92.5% (88.9%–94.4%) Specificity 93.0% (91.9%–95.1%) 89.1% (86.5%–91.7%) 100.0% 93.3% (80.0%–100.0% PPV 95.9% (95.3%–97.2%) 94.4% (93.2%–95.8%) 100.0% 98.1% (94.4%–100.0%) NPV 91.1% (87.7%–93.5% 91.0% (84.6%–94.3%) 95.2% 79.0% (71.4%–85.7%)
