Delta-radiomics features for predicting the major pathological response to neoadjuvant chemoimmunotherapy in non-small cell lung cancer

Objectives To investigate if delta-radiomics features have the potential to predict the major pathological response (MPR) to neoadjuvant chemoimmunotherapy in non-small cell lung cancer (NSCLC) patients. Methods Two hundred six stage IIA-IIIB NSCLC patients from three institutions (Database1 = 164; Database2 = 21; Database3 = 21) who received neoadjuvant chemoimmunotherapy and surgery were included. Patients in Database1 were randomly assigned to the training dataset and test dataset, with a ratio of 0.7:0.3. Patients in Database2 and Database3 were used as two independent external validation datasets. Contrast-enhanced CT scans were obtained at baseline and before surgery. The delta-radiomics features were defined as the relative net change of radiomics features between baseline and preoperative. The delta-radiomics model and pre-treatment radiomics model were established. The performance of Immune-Related Response Evaluation Criteria in Solid Tumors (iRECIST) for predicting MPR was also evaluated. Results Half of the patients (106/206, 51.5%) showed MPR after neoadjuvant chemoimmunotherapy. For predicting MPR, the delta-radiomics model achieved a satisfying area under the curves (AUCs) values of 0.768, 0.732, 0.833, and 0.716 in the training, test, and two external validation databases, respectively, which showed a superior predictive performance than the pre-treatment radiomics model (0.644, 0.616, 0.475, and 0.608). Compared with iRECIST criteria (0.624, 0.572, 0.650, and 0.466), a mixed model that combines delta-radiomics features and iRECIST had higher AUC values for MPR prediction of 0.777, 0.761, 0.850, and 0.670 in four sets. Conclusion The delta-radiomics model demonstrated superior diagnostic performance compared to pre-treatment radiomics model and iRECIST criteria in predicting MPR preoperatively in neoadjuvant chemoimmunotherapy for stage II-III NSCLC. Clinical relevance statement Delta-radiomics features based on the relative net change of radiomics features between baseline and preoperative CT scans serve a vital support tool in accurately identifying responses to neoadjuvant chemoimmunotherapy, which can help physicians make more appropriate treatment decisions. Key Points • The performances of pre-treatment radiomics model and iRECIST model in predicting major pathological response of neoadjuvant chemoimmunotherapy were unsatisfactory. • The delta-radiomics features based on relative net change of radiomics features between baseline and preoperative CT scans may be used as a noninvasive biomarker for predicting major pathological response of neoadjuvant chemoimmunotherapy. • Combining delta-radiomics features and iRECIST can further improve the predictive performance of responses to neoadjuvant chemoimmunotherapy..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:34

Enthalten in:

European radiology - 34(2023), 4 vom: 22. Sept., Seite 2716-2726

Sprache:

Englisch

Beteiligte Personen:

Han, Xiaoyu [VerfasserIn]
Wang, Mingliang [VerfasserIn]
Zheng, Yuting [VerfasserIn]
Wang, Na [VerfasserIn]
Wu, Ying [VerfasserIn]
Ding, Chengyu [VerfasserIn]
Jia, Xi [VerfasserIn]
Yang, Ran [VerfasserIn]
Geng, Mingfei [VerfasserIn]
Chen, Zhen [VerfasserIn]
Zhang, Songlin [VerfasserIn]
Zhang, Kailu [VerfasserIn]
Li, Yumin [VerfasserIn]
Liu, Jia [VerfasserIn]
Gu, Jin [VerfasserIn]
Liao, Yongde [VerfasserIn]
Fan, Jun [VerfasserIn]
Shi, Heshui [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

44.64

Themen:

Area under the curve
Carcinoma, non-small-cell lung
Humans
Neoadjuvant therapy
Response Evaluation Criteria in Solid Tumors

Anmerkungen:

© The Author(s), under exclusive licence to European Society of Radiology 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s00330-023-10241-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR055234992