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Kalra M, Bakhshi S, Singh M, Seth R, Verma N, Jain S, Radhakrishnan V, Mandal P, Mahajan A, Arora RS, Dinand V, Kapoor G, Sajid M, Kumar R, Taluja A, Mallick S, Chandra J. Response assessment by positron emission tomography-computed tomography as compared with contrast-enhanced computed tomography in childhood Hodgkin lymphoma can reduce the need for radiotherapy in low- and middle-income countries. Pediatr Blood Cancer 2023; 70:e30091. [PMID: 36411263 DOI: 10.1002/pbc.30091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/21/2022] [Accepted: 10/19/2022] [Indexed: 11/23/2022]
Abstract
INTRODUCTION The InPOG-HL-15-01, a multicentric prospective study, used a risk-stratified and response-based approach with doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD) backbone to treat children and adolescents with newly diagnosed Hodgkin lymphoma (HL) and reduce the use of radiation therapy (RT). Children/adolescents with bulky disease or inadequate response at early response assessment (ERA) after two cycles of chemotherapy were assigned to receive RT. For ERA, positron emission tomography computed tomography (PET-CT) was recommended but not mandatory in view of limited access. This study aimed to compare the impact of using contrast-enhanced computed tomography (CECT) and PET-CT on treatment decisions and outcomes. METHODOLOGY 396 patients were enrolled and 382 had an ERA at the assigned time point. Satisfactory response was defined as Deauville score 3 or less for patients undergoing PET-CT and complete response (CR)/very good partial response (VGPR) for patients undergoing CECT. Outcomes of interest incorporate 5 year event-free survival (EFS), EFS including abandonment (EFSa), and overall survival (OS). RESULTS At ERA, satisfactory response was documented in 277 out of 382 (72.5%) participants and this was significantly higher in PET-CT (151 out of 186, 81.2%) as compared with CECT-based assessments (126 out of 196, 64.3%) respectively (p value < .001). Amongst the 203 patients with nonbulky disease (wherein the indication for RT was entirely dependent on ERA), 96 out of 114 (84.2%) and 61 out of 89 (68.5%) patients achieved a satisfactory response according to the PET-CT and CECT (p value = .008) respectively and hence a lesser proportion of patients in the PET-CT arm received RT. Despite a lower usage of RT the 5 year OS of both groups, ERA based on CECT (91.8%) versus PET-CT (94.1%) was comparable (p value = .391) and so was the 5 year EFS (86.7 vs. 85.5%, p value = .724). CONCLUSION Use of PET-CT as the modality for ERA is more likely to indicate a satisfactory response as compared with CECT and thereby decreases the need for RT in response-based treatment algorithm for HL-afflicted children. The reduction in the application of RT did not impact the overall outcome and plausibly would lower the risk of delayed toxic effects.
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Affiliation(s)
- Manas Kalra
- Department of Pediatric Hematology Oncology BMT, Sir Ganga Ram Hospital, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - M Singh
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Nishant Verma
- Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Sandeep Jain
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - V Radhakrishnan
- Department of Pediatric Oncology, Cancer Institute, Adyar, Chennai, India
| | - Piali Mandal
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
| | - Amita Mahajan
- Department of Pediatric Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Ramandeep S Arora
- Department of Pediatric Oncology, Max Super Specialty Hospital, New Delhi, India
| | - Veronique Dinand
- Department of Palliative and Supportive Unit, BJ Wadia Hospital, Mumbai, India
| | - Gauri Kapoor
- Department of Pediatric Oncology, Rajiv Gandhi Cancer Institute, New Delhi, India
| | - M Sajid
- Department of Medical and Pediatric Oncology, Mahavir Cancer Sansthan, Patna, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - A Taluja
- Cankids Kidscan, New Delhi, India
| | - Saumyaranjan Mallick
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Jagdish Chandra
- Department of Pediatrics, Kalawati Saran Children's Hospital, New Delhi, India
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Marchetti L, Perrucci L, Pellegrino F, Baroni L, Merlo A, Tilli M, Rambaldi I, Maietti E, Carnevale A, Bartolomei M, Giganti M. Diagnostic Contribution of Contrast-Enhanced CT as Compared with Unenhanced Low-Dose CT in PET/CT Staging and Treatment Response Assessment of 18F-FDG-Avid Lymphomas: A Prospective Study. J Nucl Med 2021; 62:1372-1379. [PMID: 33712534 DOI: 10.2967/jnumed.120.259242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 01/29/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to assess the added diagnostic value of contrast-enhanced CT (CECT) as compared with unenhanced CT (UECT) in PET/CT staging and treatment response assessment of 18F-FDG-avid lymphomas. Methods: 170 PET/UECT scans followed by CECT scans were prospectively performed for staging (n = 85) and for treatment response assessment (n = 85) of 18F-FDG-avid lymphomas, during a single session using an integrated 64-slice PET/CT scanner. CECT and UECT images were evaluated separately by 2 radiologists, whereas PET images were evaluated by 2 nuclear physicians. Nodal and extranodal UECT and CECT findings were classified according to the Lugano criteria and were successively compared with PET/CT results, considered the gold standard. In the analyzed groups, the agreement rate with the disease status determined via PET was calculated separately for UECT and CECT using the McNemar test on paired data. The added value of the contrast medium was shown by the agreement between the PET and CECT results and the lack of agreement between UECT and PET. Results: CECT enabled the identification of additional extranodal lesions (hepatic, muscular, and gastric) in only 3 staging group cases (3.5%), indicating different stages as compared with UECT, whereas there was absolute agreement between CECT and UECT in terms of treatment response assessment. The added diagnostic value of CECT was lower than the established threshold for clinical relevance (15%). The McNemar test indicated no statistical significance in either group. The incidental findings detected by CECT but not UECT were important for clinical management but not sufficient to alter lymphoma treatment strategy. Conclusion: According to our results, it might be possible to exclude CECT examination of 18F-FDG-avid lymphoma from staging and treatment response assessment, with the consequent advantages of reducing radiation exposure and potential contrast-related risks.
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Affiliation(s)
- Lara Marchetti
- Department of Interventional and Diagnostic Radiology, Azienda Ospedaliero-Universitaria Sant'Anna, Ferrara, Italy
| | - Luca Perrucci
- Section of Diagnostic Imaging, Department of Morphology, Surgery, and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Fabio Pellegrino
- Section of Diagnostic Imaging, Department of Morphology, Surgery, and Experimental Medicine, University of Ferrara, Ferrara, Italy;
| | - Luca Baroni
- Section of Diagnostic Imaging, Department of Morphology, Surgery, and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Annalisa Merlo
- Section of Diagnostic Imaging, Department of Morphology, Surgery, and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Massimo Tilli
- Ferrara Department of Interventional and Diagnostic Radiology, Ospedale di Lagosanto, Azienda AUSL, Ferrara, Italy
| | - Ilaria Rambaldi
- Department of Nuclear Medicine, Azienda Ospedaliero-Universitaria Sant'Anna, Ferrara, Italy; and
| | - Elisa Maietti
- Medical and Surgical Sciences Department, University of Bologna, Bologna, Italy
| | - Aldo Carnevale
- Department of Interventional and Diagnostic Radiology, Azienda Ospedaliero-Universitaria Sant'Anna, Ferrara, Italy
| | - Mirco Bartolomei
- Department of Nuclear Medicine, Azienda Ospedaliero-Universitaria Sant'Anna, Ferrara, Italy; and
| | - Melchiore Giganti
- Section of Diagnostic Imaging, Department of Morphology, Surgery, and Experimental Medicine, University of Ferrara, Ferrara, Italy
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Zhao Z, Zhou Y, Wang J, Zhang T, Li J, Zhang B, Li Q, Deng S. The value of 18F-FDG PET/CT in the prediction of clinical outcomes of patients with acute leukemia treated with allogeneic hematopoietic stem cell transplantation. Oncol Lett 2020; 20:175. [PMID: 32934742 PMCID: PMC7471646 DOI: 10.3892/ol.2020.12036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 06/12/2020] [Indexed: 11/26/2022] Open
Abstract
The present study aimed to determine whether 18F-FDG PET/CT performed before and/or after allogeneic hematopoietic stem cell transplantation (allo-HSCT) can predict clinical outcomes in acute leukemia (AL). A total of 79 examinations comprising 72 patients with AL who underwent 18F-FDG PET/CT before and/or after allo-HSCT were retrospectively enrolled between January 2011 and January 2019. Outcomes were assessed using overall survival (OS) and disease-free survival (DFS). A total of 63 examinations were PET-positive, while 16 examinations were PET-negative. Increased BM and splenic 18F-FDG uptake were observed in 24 (19/79) and 14% (11/79) of examinations, respectively. 18F-FDG-avid lymph nodes were observed in 38% (30/79) of examinations. ENEMES involvement was detected in 44% (35/79) of examinations. The presence of ENEMES involvement [OS hazard ratio (HR), 6.399; 95% confidence interval (CI), 1.843–22.224; P=0.003; post-HSCT OS: HR, 7.203; 95% CI, 1.510–34.369; P=0.013; DFS HR, 3.671; 95% CI, 1.145–11.768; P=0.029], post-transplantation minimal residual disease (DFS HR, 4.381; 95% CI, 1.594–12.040; P=0.004; pre-HSCT OS HR, 11.455; 95% CI, 1.336–98.179; P=0.026) and disease status (OS HR, 0.330; 95% CI, 0.128–0.848; P=0.021; post-HSCT OS HR, 0.195; 95% CI, 0.050–0.762; P=0.019; DFS: HR, 0.278; 95% CI, 0.091–0.851; P=0.025) could serve as an adverse prognostic factor in patients with AL treated with allo-HSCT. 18F-FDG PET/CT before and/or after allo-HSCT was a predictor for OS and DFS in patients with AL. ENEMES involvement detected using 18F-FDG PET/CT may help identify patients with AL who are likely to have unfavorable clinical outcomes.
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Affiliation(s)
- Zixuan Zhao
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Yeye Zhou
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jing Wang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Tongtong Zhang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jihui Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Bin Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Qingru Li
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Shengming Deng
- Department of Nuclear Medicine, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Diagnostic Yield of Body CT and Whole-Body FDG PET/CT for Initial Systemic Staging in Patients With Suspected Primary CNS Lymphoma: A Systematic Review and Meta-Analysis. AJR Am J Roentgenol 2020; 216:1172-1182. [PMID: 32812800 DOI: 10.2214/ajr.20.24036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND. Several guidelines recommend body imaging for the initial work-up of patients with suspected primary CNS lymphoma, to exclude subclinical systemic involvement. However, to our knowledge, the diagnostic yield of body CT (contrast-enhanced CT of the chest, abdomen, and pelvis) and whole-body FDG PET/CT for the evaluation of subclinical systemic lymphoma has not yet been systematically evaluated. OBJECTIVE. The purpose of this study was to investigate and compare the diagnostic yield of body CT and whole-body FDG PET/CT in detecting subclinical systemic lymphoma in patients with suspected primary CNS lymphoma. EVIDENCE ACQUISITION. A systematic search of the MEDLINE and EMBASE databases through July 5, 2020, was conducted to identify studies evaluating the diagnostic yield of body CT or whole-body FDG PET/CT in detecting subclinical systemic lymphoma in patients with suspected primary CNS lymphoma. Pooled estimates of the diagnostic yield of both imaging modalities were calculated using the DerSimonian and Laird random-effects model. The false referral rate and the rate of incidental secondary malignancy were also pooled. EVIDENCE SYNTHESIS. Nine original articles on studies evaluating a total of 1040 patients were included. In detecting subclinical systemic lymphoma, the pooled diagnostic yields of body CT and whole-body FDG PET/CT were 2.5% (95% CI, 1.5-3.9%) and 4.9% (95% CI, 2.8-8.5%), respectively. In the subgroup analysis, the diagnostic yield of whole-body FDG PET/CT was significantly higher than that of body CT (p = .03). Four studies reported changes in the management plan: the R-CHOP (rituximab, cyclophosphamide, hydroxydaunorubicin, vincristine, and prednisone) regimen with or without radiation therapy was added if extracranial lymphoma involvement was detected by body CT or whole-body FDG PET/CT. The pooled false referral rate of whole-body FDG PET/CT was 5.3% (95% CI, 2.2-12.0%). The pooled rate of incidental secondary malignancy detected on whole-body FDG PET/CT was 3.1% (95% CI, 1.7-5.6%). CONCLUSION. Body imaging should be used in the initial workup of patients with suspected primary CNS lymphoma, to exclude systemic involvement. Whole-body FDG PET/CT may be a better alternative to body CT. CLINICAL IMPACT. Our results support current National Comprehensive Cancer Network guidelines for the use of body imaging to exclude subclinical systemic involvement in patients with suspected primary CNS lymphoma.
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Hagleitner MM, Metzger ML, Flerlage JE, Kelly KM, Voss SD, Kluge R, Kurch L, Cho S, Mauz-Koerholz C, Beishuizen A. Liver involvement in pediatric Hodgkin lymphoma: A systematic review by an international collaboration on Staging Evaluation and Response Criteria Harmonization (SEARCH) for Children, Adolescent, and Young Adult Hodgkin Lymphoma (CAYAHL). Pediatr Blood Cancer 2020; 67:e28365. [PMID: 32491274 DOI: 10.1002/pbc.28365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/25/2020] [Accepted: 04/10/2020] [Indexed: 12/21/2022]
Abstract
Hepatic involvement in Hodgkin lymphoma (HL) is uncommon (∼5% of patients) but always implies stage IV disease. Accurate staging is mandatory for making the appropriate risk assignment and treatment decisions. The Staging Evaluation and Response Criteria Harmonization for Childhood, Adolescent and Young Adult Hodgkin Lymphoma (SEARCH for CAYAHL) international working group conducted a systematic literature review of liver involvement in HL patients with the aim to propose a universally acceptable definition for liver involvement in pediatric HL. Thirty-three articles describing 6985 pediatric and adult HL patients were reviewed, of which 539 (7.7%) mentioned liver involvement. The literature did not provide a uniform definition of hepatic involvement and we propose consensus criteria derived from the EuroNet and Children's Oncology Group protocols, where liver involvement is defined as any hepatic lesion on computed tomography scan that correlates with 18 F-FDG uptake greater than background liver. A clear definition of liver lesions is necessary to consistently identify liver involvement and compare its impact on outcomes among protocols worldwide.
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Affiliation(s)
| | - Monika L Metzger
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee.,University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Jamie E Flerlage
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee.,University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Kara M Kelly
- Roswell Park Cancer Institute, University of Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York
| | - Stephan D Voss
- DepartmentofRadiology, Boston Children's Hospital Dana Farber Cancer Institute, Boston, Massachusetts
| | - Regine Kluge
- Department of Nuclear Medicine, University Hospital of Leipzig, Leipzig, Germany
| | - Lars Kurch
- Department of Nuclear Medicine, University Hospital of Leipzig, Leipzig, Germany
| | - Steve Cho
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - Christine Mauz-Koerholz
- Department of Pädiatrische Hämatologie und Onkologie, Zentrum für Kinderheilkunde der Justus-Liebig-Universität Gießen, Gießen, Germany.,Medical Faculty, Martin-Luther-University of Halle-Wittenberg, Halle, Germany
| | - Auke Beishuizen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
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