Evaluation of tumour necrosis during chemotherapy with diffusion-weighted MR imaging: preliminary results in osteosarcomas

Uhl, Markus; Saueressig, Ulrich; Koehler, Gabriele; Kontny, Udo; Niemeyer, Charlotte M.; Reichardt, Wilfried; Ilyasof, Kamil; Bley, Thorsten Alexander; Langer, Mathias

doi:10.1007/s00247-006-0324-x

Cited by 106 publications

(68 citation statements)

References 11 publications

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“…Subsequently, 3 articles were excluded after reviewing the whole article (23)(24)(25). Five articles with 106 patients who fulfilled all of the inclusion criteria were selected for the meta-analysis (Table I) (26)(27)(28)(29)(30). The detailed procedure of study selection and its exclusion reasons in the meta-analysis is presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

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Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Kubo

Furuta

Johan

et al. 2017

Molecular and Clinical Oncology

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Abstract. The histological examination of the tumor necrosis upon surgery remains the most reliable prognostic factor for osteosarcoma. However, the detection of more early prognostic factors is desirable in order to increase the survival rates and decrease the risk rates for iatrogenic toxicity. The purpose of the current systematic review and meta-analysis was to provide an up-to-date summary of the role of diffusion-weighted imaging (DWI) for the preoperative assessment of the chemotherapy response in osteosarcoma. Articles evaluating DWI for the preoperative assessment of the chemotherapy response of osteosarcoma were systematically searched for in four electronic literature databases. The mean difference in apparent diffusion coefficient (ADC) following neoadjuvant chemotherapy between good and poor histological responders was assessed in 5 studies. The mean difference in the ADC ratio (the percentage change in ADC between post-neoadjuvant and pre-neoadjuvant chemotherapy) reported in 3 studies was also assessed. Five articles with 106 patients fulfilled all of the inclusion criteria for the meta-analysis. Significant mean differences were found between good and poor responders in the ADC in the 5 studies (P=0.03) and the ADC ratio in the 3 studies (P<0.00001). The good responders demonstrated a higher ADC and a higher ADC ratio than the poor responders. DWI performed with ADC values was useful for predicting the chemotherapeutic response of osteosarcoma. This method may have promising potential as a preoperative non-invasive modality.

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Section: Resultsmentioning

confidence: 99%

“…Certain studies revealed that an increased ADC following neoadjuvant chemotherapy is associated with good histological response (24,25,27,29,30). However, there have been conflicting results.…”

Section: Discussionmentioning

confidence: 99%

Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Kubo

Furuta

Johan

et al. 2017

Molecular and Clinical Oncology

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“…The current standard of chemotherapy response evaluation is to histologically assess the tumor necrosis of the excised lesion (2,3), which has been reported to be the most important prognostic factor in osteosarcoma after neoadjuvant chemotherapy (4). However, because tumor necrosis can be assessed only in the resected specimens after the completion of neoadjuvant chemotherapy, the continuation of ineffective chemotherapy can cause the development of resistant clones (3).…”

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confidence: 99%

Combination of ¹⁸F-FDG PET/CT and Diffusion-Weighted MR Imaging as a Predictor of Histologic Response to Neoadjuvant Chemotherapy: Preliminary Results in Osteosarcoma

et al. 2013

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We evaluated the potential of 18 F-FDG PET/CT and diffusionweighted imaging (DWI) to monitor the histologic response in patients with extremity osteosarcoma receiving neoadjuvant chemotherapy, using sequential PET/CT and MR imaging. Methods: We prospectively registered 28 patients with high-grade osteosarcoma treated with 2 cycles of neoadjuvant chemotherapy and surgery. All patients underwent sequential 18 F-FDG PET/CT and MR imaging before (PET/MR1) and after neoadjuvant chemotherapy (PET/MR2). Maximum standardized uptake value (SUV), tumor volume based on MR imaging (MRV), and the mean apparent diffusion coefficient (ADC) values were measured on PET/MR1 (SUV1, MRV1, and ADC1) and PET/MR2 (SUV2, MRV2, and ADC2). The percentage changes in maximum SUV (ΔSUV), MRV (ΔMRV), and ADC (ΔADC) were calculated, and the correlations among these parameters were evaluated. After surgery, the effects of neoadjuvant chemotherapy were graded histopathologically: grades III and IV (necrosis of $ 90%) indicated a good response, and grades I and II (necrosis of , 90%) indicated a poor response. The optimum cutoff values of ΔSUV, ΔMRV, ΔADC, and their combination for predicting histologic response were assessed by single-and multi-receiver-operating-characteristic curve analysis. Results: Twenty-seven patients were enrolled in the present study after 1 patient with inadequate acquisition of MR imaging was excluded. ΔSUV and ΔADC negatively correlated with each other (r 5 20.593, P 5 0.001), and ΔMRV did not correlate with ΔSUV or ΔADC. The cutoff value, sensitivity, specificity, and accuracy for predicting good histologic response were # 252%, 67%, 87%, and 78%, respectively, for ΔSUV and . 13%, 83%, 73%, and 78%, respectively, for ΔADC. However, ΔMRV did not predict histologic response. Sensitivity, specificity, and accuracy were 83%, 87%, and 85%, respectively, using the combined criterion of ΔSUV # 231% and ΔADC . 13%. Conclusion: In the current preliminary study, both PET/CT and DWI are useful for predicting histologic response after neoadjuvant chemotherapy in osteosarcoma. Combining PET/CT and DWI may be an effective method to predict the histologic response of patients to neoadjuvant chemotherapy.

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“…34 Başka bir çalışmada, osteosarkomlu olgularda kemoterapi sonrasında tümör nekroz oranının ADC ölçümü ile saptanması sayesinde tedaviye yanıtın kantitatif olarak izlenebileceği rapor edilmiş-tir. 36 Bu nedenle DAG tedaviye yanıtın erken dönemde belirlenmesinde ümit vaad edici bir yön-tem olarak görülmektedir.…”

Section: Tedavi̇ye Yanitin Tahmi̇n Ve Taki̇p Edi̇lmesi̇unclassified

Extra-Neuroradiologic Applications of Diffusion-Weighted Imaging in Pediatric Patients: Review

Battal¹,

Akgün²,

Kocaoğlu³

2015

Turkiye Klinikleri J Pediatr

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Evaluation of tumour necrosis during chemotherapy with diffusion-weighted MR imaging: preliminary results in osteosarcomas

Abstract: During chemotherapy of osteosarcomas, tumour ADC changes are related to the degree of tumour necrosis.

Cited by 106 publications

References 11 publications

Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Combination of ¹⁸F-FDG PET/CT and Diffusion-Weighted MR Imaging as a Predictor of Histologic Response to Neoadjuvant Chemotherapy: Preliminary Results in Osteosarcoma

Extra-Neuroradiologic Applications of Diffusion-Weighted Imaging in Pediatric Patients: Review

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Evaluation of tumour necrosis during chemotherapy with diffusion-weighted MR imaging: preliminary results in osteosarcomas

Abstract: During chemotherapy of osteosarcomas, tumour ADC changes are related to the degree of tumour necrosis.

Cited by 106 publications

References 11 publications

Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Value of diffusion-weighted imaging for evaluating chemotherapy response in osteosarcoma: A meta-analysis

Combination of 18F-FDG PET/CT and Diffusion-Weighted MR Imaging as a Predictor of Histologic Response to Neoadjuvant Chemotherapy: Preliminary Results in Osteosarcoma

Extra-Neuroradiologic Applications of Diffusion-Weighted Imaging in Pediatric Patients: Review

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Combination of ¹⁸F-FDG PET/CT and Diffusion-Weighted MR Imaging as a Predictor of Histologic Response to Neoadjuvant Chemotherapy: Preliminary Results in Osteosarcoma