Article Figures & Data
Figures
- FIGURE 1.
TP CT-guided FNA in 44 × 42 mm lesion in left lung: CT FNA demonstrating location of aspirating needle (arrow) (A), registered CT FNA slice with corresponding PET/CT image (red contours, score 1) (B), and corresponding 18F-FDG PET slice demonstrating high and homogeneous 18F-FDG uptake at site of needle tip (C). SUVmax at tip of needle: 9.1; highest SUVmax in tumor: 11.0, distance between tumor SUVmax and tip of needle: 3.77 mm; FNA results: adenocarcinoma; histologic sample obtained at surgery: poorly differentiated adenocarcinoma.
- FIGURE 2.
FN CT-guided FNA in 58 × 37 mm lesion in left lung: CT FNA demonstrating location of aspirating needle (arrow) (A), registered CT FNA slice with corresponding PET/CT image (red contours, score 2) (B), and corresponding 18F-FDG PET slice demonstrating that tip of needle is inside area of lesion with low metabolic activity (C). SUVmax at tip of needle: 2.4; highest SUVmax in tumor: 6.9; distance between tumor SUVmax and tip of needle: 11.85 mm; FNA results: macrophages and respiratory cells; histologic sample obtained at surgery: moderately differentiated squamous cell carcinoma.
Tables
- TABLE 1
Morphologic and Metabolic Lesion Characteristics in Cases with TP and FN FNA Results
Characteristic TP FN P No. of patients 179 34 Size of lesion (mm) NS Average 35.2 29.8 Minimum 6.5 9 Maximum 100 148 PET uptake pattern (%) NS Homogeneous 70 (39%) 16 (47%) Inhomogeneous 102 (57%) 14 (41%) NS Absent 7 (4%) 4 (12%) NS SUVmax at needle tip <0.05 Average 6.4 4 Minimum 0.3 0.22 Maximum 44.7 22.1 Lesion SUVmax <0.05 Average 12.4 9.3 Minimum 0.84 0.3 Maximum 63.7 29.8 Distance from needle tip to highest tumor SUVmax (mm) <0.001 Average 5.9 15.4 Minimum 0 0 Maximum 86 50.3 Adenocarcinoma 102 (56%) 13 (38%) Squamous cell carcinoma 24 (13%) 5 (15%) Small cell lung cancer 3 (2%) 1 (3%) Non–small cell lung cancer* 28 (15%) 1 (3%) Neuroendocrine tumor 4 (2%) 7 (20.5%) Other malignancies† 21 (12%) 7 (20.5%)
