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author:

Zhang, Yu (Zhang, Yu.) [1] | Chen, Hong (Chen, Hong.) [2] | Lin, Dajia (Lin, Dajia.) [3] | Lin, Zhiyi (Lin, Zhiyi.) [4] | Shi, Jiyun (Shi, Jiyun.) [5] | Gao, Hannan (Gao, Hannan.) [6] | Huang, Chenshen (Huang, Chenshen.) [7] | Xue, Fangqing (Xue, Fangqing.) [8] | Wang, Fan (Wang, Fan.) [9] | Chen, Wenxin (Chen, Wenxin.) [10]

Indexed by:

SCIE

Abstract:

To explore the diagnostic performance of [Tc-99m]Tc-FAPI SPECT/CT for gastrointestinal cancer, compared to [F-18]FDG PET/CT. In this analysis of a prospective trial, consecutively recruited patients from a single center with pathologically confirmed gastrointestinal cancer were prospectively enrolled from September 2022 to June 2024 and underwent paired v and [F-18]FDG PET/CT examinations at intervals of more than 1 day and within 7 days of each other.The activity of tracer accumulation in lesions was assessed by maximum standardized uptake value(SUVmax) and TBR (lesions SUVmax/ascending aorta SUVmean). Histopathologic and clinical follow-up results were used as reference standards for final diagnoses. Seventy-eight patients (46 men; median age, 58.8 +/- 14.5 years) were evaluated. Compared with the TBR for [F-18]FDG uptake, TBR for [Tc-99m]Tc-FAPI uptake was higher in primary tumor(4.6 +/- 2.0 vs. 3.4 +/- 1.7; P = 0.001) ,peritoneal spread (1.3 [1.1,7.3] vs. 1.1[1.1,1.1]; P = 0.001 ) and liver metastases( 2.5[1.1,8.5] vs. 1.1[1.1,3.4]; P = 0.031). For diagnostic accuracy in a total of 253 lesions in 78 patients, compared with [F-18]FDG PET/CT, [Tc-99m]Tc-FAPI SPECT/CT demonstrated a higher sensitivity (100% [15 of 15 lesions] vs. 20% [3 of 15]; P < 0.001), accuracy (100% [48 of 48 lesions] vs. 75% [36 of 48];P < 0.001), and negative predictive value (100% [33 of 33 lesions] vs. 69% [36 of 48 lesions]; P = 0 0.001) in detecting peritoneal spread, and a higher sensitivity (85% [17 of 20 lesions] vs. 50% [10 of 20]; P = 0.041) in detecting liver metastases. Patients with metastatic gastrointestinal carcinomas negative on the [Tc-99m]Tc-FAPI scan showed improved clinical prognosis after immunotherapy (P<0.006). TBR-FDG/TBR-FAPI was the main predictor of better prognosis post-immunotherapy ([stable disease, SD]+[partial response, PR]), with an optimal cut-off of 3.82. [Tc-99m]Tc-FAPI SPECT/CT can better evaluate peritoneal spread and liver metastases in gastrointestinal cancer. Furthermore, TBR-FDG/TBR-FAPI is a valuable imaging parameter for monitoring immunotherapy responses.

Keyword:

Gastrointestinal cancer Immunotherapy SPECT/CT [Tc-99m]Tc-FAPI

Community:

  • [ 1 ] [Zhang, Yu]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Nucl Med, Fuzhou, Peoples R China
  • [ 2 ] [Lin, Zhiyi]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Nucl Med, Fuzhou, Peoples R China
  • [ 3 ] [Chen, Wenxin]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Nucl Med, Fuzhou, Peoples R China
  • [ 4 ] [Zhang, Yu]Fujian Res Inst Nucl Medcine, Fuzhou, Peoples R China
  • [ 5 ] [Lin, Zhiyi]Fujian Res Inst Nucl Medcine, Fuzhou, Peoples R China
  • [ 6 ] [Chen, Wenxin]Fujian Res Inst Nucl Medcine, Fuzhou, Peoples R China
  • [ 7 ] [Zhang, Yu]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 8 ] [Chen, Hong]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 9 ] [Lin, Dajia]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 10 ] [Lin, Zhiyi]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 11 ] [Huang, Chenshen]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 12 ] [Xue, Fangqing]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 13 ] [Chen, Wenxin]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China
  • [ 14 ] [Chen, Hong]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Gastrointestinal Surg, Fuzhou, Peoples R China
  • [ 15 ] [Lin, Dajia]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Gastrointestinal Surg, Fuzhou, Peoples R China
  • [ 16 ] [Huang, Chenshen]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Gastrointestinal Surg, Fuzhou, Peoples R China
  • [ 17 ] [Xue, Fangqing]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Gastrointestinal Surg, Fuzhou, Peoples R China
  • [ 18 ] [Shi, Jiyun]Chinese Acad Sci, Inst Biophys, CAS Ctr Excellence Biomacromolecules, Key Lab Biomacromolecules, Beijing 100101, Peoples R China
  • [ 19 ] [Gao, Hannan]Chinese Acad Sci, Inst Biophys, CAS Ctr Excellence Biomacromolecules, Key Lab Biomacromolecules, Beijing 100101, Peoples R China
  • [ 20 ] [Wang, Fan]Peking Univ, Med Isotopes Res Ctr, Beijing 100101, Peoples R China

Reprint 's Address:

  • [Chen, Wenxin]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Nucl Med, Fuzhou, Peoples R China;;[Chen, Wenxin]Fujian Res Inst Nucl Medcine, Fuzhou, Peoples R China;;[Xue, Fangqing]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China;;[Chen, Wenxin]Fujian Med Univ, Fuzhou Univ, Fujian Prov Hosp, Affiliated Prov Hosp,Shengli Clin Med Coll, Fuzhou 350001, Peoples R China;;[Xue, Fangqing]Fuzhou Univ, Affiliated Prov Hosp, Fujian Prov Hosp, Dept Gastrointestinal Surg, Fuzhou, Peoples R China;;[Wang, Fan]Peking Univ, Med Isotopes Res Ctr, Beijing 100101, Peoples R China

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Source :

SCIENTIFIC REPORTS

ISSN: 2045-2322

Year: 2025

Issue: 1

Volume: 15

3 . 8 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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