Article Figures & Data
Figures
- FIGURE 1.
Subjective overall image quality at various acquisition times using full dose, with ringlike 18F-FDG uptake lesion in liver shown in maximum intensity projection (A–F) and axial view (G–L) for 900- to 18-s groups. Overall image scores of 5, 4, 3, 2, and 1 were assigned to 180-, 120-, 60-, 30-, and 18-s groups, respectively. (Reprinted with permission of (5).)
- FIGURE 2.
TB PET monitoring of biodistribution and optimization of acquisition time. (A) Maximum-intensity projection images of 18F-FAPI-42 at 5, 10, 15, 20, 65, and 120 min after injection in patient 21 (female). (B) Time–activity curves of 18F-FAPI-42 at various time points after injection. (C) Tumor SUVmax–to–organ SUVmean ratios at various time points after 18F-FAPI-42 injection, excluding tumor SUVmax–to–brain SUVmean ratio. (Reprinted with permission of (24).)
- FIGURE 3.
68Ga-HNI01 PET images in patients with colorectal cancer primary tumors. (A) Reconstructed dynamic whole-body PET/CT maximum-intensity projection (MIP) images of 68Ga-HNI01 in patient 10 (10 frames). (B) MIP images from 68Ga-HNI01 PET/CT (left) and 18F-FDG PET/CT (right) in patient 10 with abnormal intestinal activity uptake. (C) MIP images from 68Ga-HNI01 PET/CT (left) and 18F-FDG PET/CT (right) in patient 4 with normal intestinal activity uptake. (D) Time courses and fitting curves (fit spline or locally weighted scatterplot smoothing) of 68Ga-HNI01 uptake in normal tissues and tumors for 3 patients in terms of SUVmax. (E) Immunohistochemical staining for carcinoembryonic antigen in tumor samples from patients 1 and 4. A.U. = abnormal uptake; C = cecum; G.E.J. = gastroesophageal junction; K = kidney; p.i. = postinjection; T = tumor. (Reprinted with permission of (25).)
- FIGURE 4.
Breath-hold (BH) acquisition in TB PET. Images of 59-y-old man with lung adenocarcinoma show solitary solid lung nodule in right lower lobe in axial, coronal, and sagittal chest CT (top row), PET (middle row), and PET/CT (bottom row). (A) Free-breathing (FB) PET/CT. (B) BH PET/CT. Blurred uptake area results from breathing artifacts in FB PET image. (Reprinted with permission of (45).)
- FIGURE 5.
Subjective overall image quality at different doses. 18F-FDG PET image of 1.9-y-old male patient, weighing 10 kg with Langerhans cell histiocytosis, is reconstructed at 600, 300, 60, 40, and 20 s and depicted in maximum-intensity projection and axial views (A–E), representing full, half, one-tenth, one-fifteenth, and one-thirtieth dose, respectively. Effective doses are shown in parentheses. (Reprinted with permission of (50).)
- FIGURE 6.
Ki images with various settings. These 16 schemes use different durations (40, 30, 20, and 16 min), input functions (image-derived input function [IDIF] and population-based input function [PBIF]), and application with or without nonlocal means (NLM) filter. Arrow indicates lesion. (Reprinted from (60).)
- FIGURE 7.
Abnormal metabolic connectivity between organs. (A–C) Metabolic connectivity plots show 2 abnormal subjects and control, with middle images displaying coronal SUV slices and side plots showing network connections between organs. Abnormal subjects demonstrated denser connectivity and higher strength at relevant nodes than did control network, marked with red arrows for SUV uptake. CER = cerebellum; Covid-19 = coronavirus disease 2019; CSF = cerebrospinal fluid; GI = gastrointestinal; LV = left ventricle; SF = frontal cortex; WM = white matter. (Reprinted from (74).)
