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Fei H, Chen T, Jiang H. Autocrine and paracrine effects of MDK promote lymph node metastasis of cervical squamous cell carcinoma. iScience 2024; 27:110077. [PMID: 39040052 PMCID: PMC11261016 DOI: 10.1016/j.isci.2024.110077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/02/2023] [Accepted: 05/19/2024] [Indexed: 07/24/2024] Open
Abstract
Lymph node metastasis (LNM) is the main metastatic pathway of cervical cancer, which is closely related to 5-year survival rate of cervical squamous cell carcinoma (CSCC), yet the underlying mechanism remains unconfirmed. In this study, we show that midkine (MDK) was highly expressed in CSCC and overexpression of MDK was associated with CSCC LNM. Functional investigations demonstrated that MDK promoted LNM by enhancing proliferation, migration and invasion capacity of cervical cancer cells, facilitating lymphangiogenesis and down-regulating the expression of tight junction proteins of human lymphatic endothelial cells (HLECs). MDK exerted these biological effects by interacting with Syndecan-1 and activating PI3K/AKT and p38 MAPK pathways. A retrospective study showed that s-MDK was related to LNM. s-MDK combined with serum-squamous cell carcinoma antigen(s-SCCA) improved the diagnostic accuracy of CSCC LNM. These findings established a new mechanism of LNM and highlighted MDK as a candidate tumor biomarker and therapeutic target in CSCC.
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Affiliation(s)
- He Fei
- Department of Gynecology, The Fifth People’s Hospital of Shanghai, Fudan University, Shanghai 200240, China
| | - Tong Chen
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Hua Jiang
- Department of Gynecology, Obstetrics & Gynecology Hospital, Fudan University, Shanghai 200011, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai 200011, China
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Fruhauf F, Cibula D, Kocian R, Zikan M, Dundr P, Jarkovsky J, Fischerova D. Diagnostic performance of ultrasonography in pre-operative assessment of lymph nodes in patients with cervical cancer. Int J Gynecol Cancer 2024; 34:985-992. [PMID: 38950926 DOI: 10.1136/ijgc-2024-005341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024] Open
Abstract
OBJECTIVES To assess the diagnostic performance of ultrasonography in pre-operative assessment of lymph nodes in patients with cervical cancer, to compare the outcomes for pelvic and para-aortic regions, and to detect macrometastases and micrometastases separately. METHODS Patients were retrospectively included if they met the following inclusion criteria: pathologically verified cervical cancer; ultrasonography performed by one of four experienced sonographers; surgical lymph node staging, at least in the pelvic region-sentinel lymph node biopsy or systematic pelvic lymphadenectomy or debulking. The final pathological examination was the reference standard. RESULTS 390 patients met the inclusion criteria between 2009 and 2019. Pelvic node macrometastases (≥2 mm) were confirmed in 54 patients (13.8%), and micrometastases (≥0.2 mm and <2 mm) in another 21 patients (5.4%). Ultrasonography had sensitivity 72.2%, specificity 94.0%, and area under the curve (AUC) 0.831 to detect pelvic macrometastases, while sensitivity 53.3%, specificity 94.0%, and AUC 0.737 to detect both pelvic macrometastases and micrometastases (pN1). Ultrasonography failed to detect pelvic micrometastases, with sensitivity 19.2%, specificity 85.2%, and AUC 0.522. There was no significant impact of body mass index on diagnostic accuracy. Metastases in para-aortic nodes (macrometastases only) were confirmed in 16 of 71 patients who underwent para-aortic lymphadenectomy. Ultrasonography yielded sensitivity 56.3%, specificity 98.2%, and AUC 0.772 to identify para-aortic node macrometastases. CONCLUSION Ultrasonography performed by an experienced sonographer can be considered a sufficient diagnostic tool for pre-operative assessment of lymph nodes in patients with cervical cancer, showing similar diagnostic accuracy in detection of pelvic macrometastases as reported for other imaging methods (18F-fluorodeoxyglucose positron emission tomography/CT or diffusion-weighted imaging/MRI). It had low sensitivity for detection of small-volume macrometastases (largest diameter <5 mm) and micrometastases. The accuracy of para-aortic assessment was comparable to that for pelvic lymph nodes, and assessment of the para-aortic region should be an inseparable part of the examination protocol.
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Affiliation(s)
- Filip Fruhauf
- Department of Gynaecology, Obstetrics, and Neonatology, Gynaecologic Oncology Center, General University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
| | - David Cibula
- Department of Gynaecology, Obstetrics, and Neonatology, Gynaecologic Oncology Center, General University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
| | - Roman Kocian
- Department of Gynaecology, Obstetrics, and Neonatology, Gynaecologic Oncology Center, General University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
| | - Michal Zikan
- Department of Gynaecology and Obstetrics, Bulovka University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
| | - Pavel Dundr
- Institute of Pathology, General University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
| | - Jiri Jarkovsky
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Daniela Fischerova
- Department of Gynaecology, Obstetrics, and Neonatology, Gynaecologic Oncology Center, General University Hospital and 1st Faculty of Charles University, Prague, Czech Republic
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3
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Russo L, Pasciuto T, Lupinelli M, Urbano A, D'Erme L, Amerighi A, Fanfani F, Scambia G, Manfredi R, Sala E, Ferrandina G, Gui B. The value of MRI in quantification of parametrial invasion and association with prognosis in locally advanced cervical cancer: the "PLACE" study. Eur Radiol 2024; 34:4003-4013. [PMID: 37981591 DOI: 10.1007/s00330-023-10443-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/21/2023] [Accepted: 10/14/2023] [Indexed: 11/21/2023]
Abstract
OBJECTIVE This retrospective observational study aims to evaluate the association between the extent of parametrial invasion (PMI) and disease-free survival (DFS) and cancer-specific survival (CSS) in patients with locally advanced cervical cancer (LACC). MATERIALS AND METHODS This study included patients with LACC showing parametrial invasion at Magnetic Resonance Imaging (MRI). They were treated with neoadjuvant chemo-radiotherapy (CT/RT) before undergoing radical hysterectomy. The staging MRIs were reviewed retrospectively. Measurements of maximum PMI (PMImax) and parametrial length were taken bilaterally. After that, PMIratio was calculated by dividing PMImax by parametrial length. Analysis was conducted on homogeneous subsets of patients, grouped based on their pathological lymph nodal evaluation (N- and N+). Correlations between PMImax and PMIratio with DFS and CSS were evaluated in both the N- and N+ groups, employing univariable Cox regression analysis. RESULTS Out of 221 patients, 126 (57%) had non-metastatic lymph nodes (N-), while 95 (43%) had metastatic lymph nodes (N+). The median observation period for all these patients was 73 months (95% confidence interval [CI]: 66-77). The 5-year DFS and CSS probability rates were 75% and 85.7%, respectively, for the N- group and 54.3% and 73.6%, respectively, for the N+ group. A higher PMImax (hazard ratio [HR] = 1.09) and PMIratio (HR = 1.04) correlated with worse overall survival in patients in the N- group (p = 0.025 and p = 0.042). These parameters did not show a significant statistical association in the N+ group. CONCLUSIONS The degree of PMI evaluated on MRI affects outcome in N- patients with LACC. CLINICAL RELEVANCE STATEMENT The degree of MRI parametrial invasion affects disease-free survival and cancer-specific survival in patients with the International Federation of Gynecology and Obstetrics (FIGO) stage IIB cervical cancer. This MRI finding can be easily incorporated into routine clinical practice. KEY POINTS • Visual assessment of parametrial invasion on MRI was not significantly associated with prognosis in locally advanced cervical cancer (LACC). • A greater degree of parametrial invasion is associated with poorer disease-free survival and cancer-specific survival in patients with LACC without metastatic lymph node involvement. • The degree of parametrial invasion at MRI has no correlation with prognosis in LACC with metastatic lymph nodes.
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Affiliation(s)
- Luca Russo
- Dipartimento Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Tina Pasciuto
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Research core facility Data Collection G-STeP, Rome, Italy
| | - Michela Lupinelli
- Dipartimento Diagnostica per Immagini, Ospedale Morgagni-Pierantoni, Forlì, Italy
| | | | - Luca D'Erme
- Dipartimento Universitario di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Amerighi
- Dipartimento Universitario di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Fanfani
- Dipartimento per la Salute della Donna, Fondazione Policlinico Universitario A. Gemelli IRCCS, del Bambino e di Sanità Pubblica, Rome, Italy
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Giovanni Scambia
- Dipartimento per la Salute della Donna, Fondazione Policlinico Universitario A. Gemelli IRCCS, del Bambino e di Sanità Pubblica, Rome, Italy
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Riccardo Manfredi
- Dipartimento Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Dipartimento Universitario di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Evis Sala
- Dipartimento Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Dipartimento Universitario di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gabriella Ferrandina
- Dipartimento per la Salute della Donna, Fondazione Policlinico Universitario A. Gemelli IRCCS, del Bambino e di Sanità Pubblica, Rome, Italy
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Benedetta Gui
- Dipartimento Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
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Shinagare AB, Burk KS, Kilcoyne A, Akin EA, Chuang L, Hindman NM, Huang C, Rauch GM, Small W, Stein EB, Venkatesan AM, Kang SK. ACR Appropriateness Criteria® Pretreatment Evaluation and Follow-Up of Invasive Cancer of the Cervix: 2023 Update. J Am Coll Radiol 2024; 21:S249-S267. [PMID: 38823948 DOI: 10.1016/j.jacr.2024.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 06/03/2024]
Abstract
Cervical cancer is a common gynecological malignancy worldwide. Cervical cancer is staged based on the International Federation of Gynecology and Obstetrics (FIGO) classification system, which was revised in 2018 to incorporate radiologic and pathologic data. Imaging plays an important role in pretreatment assessment including initial staging and treatment response assessment of cervical cancer. Accurate determination of tumor size, local extension, and nodal and distant metastases is important for treatment selection and for prognostication. Although local recurrence can be diagnosed by physical examination, imaging plays a critical role in detection and follow-up of local and distant recurrence and subsequent treatment selection. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.
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Affiliation(s)
- Atul B Shinagare
- Brigham & Women's Hospital Dana-Farber Cancer Institute, Boston, Massachusetts.
| | - Kristine S Burk
- Research Author, Brigham & Women's Hospital, Boston, Massachusetts
| | - Aoife Kilcoyne
- Panel Chair, Massachusetts General Hospital, Boston, Massachusetts
| | - Esma A Akin
- The George Washington University Medical Center, Washington, District of Columbia; Commission on Nuclear Medicine and Molecular Imaging
| | - Linus Chuang
- University of Vermont Larner College of Medicine Danbury Hospital, Burlington, Vermont; Gynecologic oncology expert
| | | | - Chenchan Huang
- New York University Langone Medical Center, New York, New York
| | - Gaiane M Rauch
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William Small
- Loyola University Chicago, Stritch School of Medicine, Department of Radiation Oncology, Cardinal Bernardin Cancer Center, Maywood, Illinois; Commission on Radiation Oncology
| | - Erica B Stein
- University of Michigan Medical Center, Ann Arbor, Michigan
| | | | - Stella K Kang
- Specialty Chair, New York University Medical Center, New York, New York
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Fischerova D, Frühauf F, Burgetova A, Haldorsen IS, Gatti E, Cibula D. The Role of Imaging in Cervical Cancer Staging: ESGO/ESTRO/ESP Guidelines (Update 2023). Cancers (Basel) 2024; 16:775. [PMID: 38398166 PMCID: PMC10886638 DOI: 10.3390/cancers16040775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/10/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024] Open
Abstract
Following the European Society of Gynaecological Oncology (ESGO), the European Society for Radiotherapy and Oncology (ESTRO), and the European Society of Pathology (ESP) joint guidelines (2018) for the management of patients with cervical cancer, treatment decisions should be guided by modern imaging techniques. After five years (2023), an update of the ESGO-ESTRO-ESP recommendations was performed, further confirming this statement. Transvaginal/transrectal ultrasound (TRS/TVS) or pelvic magnetic resonance (MRI) enables tumor delineation and precise assessment of its local extent, including the evaluation of the depth of infiltration in the bladder- or rectal wall. Additionally, both techniques have very high specificity to confirm the presence of metastatic pelvic lymph nodes but fail to exclude them due to insufficient sensitivity to detect small-volume metastases, as in any other currently available imaging modality. In early-stage disease (T1a to T2a1, except T1b3) with negative lymph nodes on TVS/TRS or MRI, surgicopathological staging should be performed. In all other situations, contrast-enhanced computed tomography (CECT) or 18F-fluorodeoxyglucose positron emission tomography combined with CT (PET-CT) is recommended to assess extrapelvic spread. This paper aims to review the evidence supporting the implementation of diagnostic imaging with a focus on ultrasound at primary diagnostic workup of cervical cancer.
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Affiliation(s)
- Daniela Fischerova
- Gynecologic Oncology Centre, Department of Gynaecology, Obstetrics and Neonatology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 121 08 Prague, Czech Republic; (F.F.); (D.C.)
| | - Filip Frühauf
- Gynecologic Oncology Centre, Department of Gynaecology, Obstetrics and Neonatology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 121 08 Prague, Czech Republic; (F.F.); (D.C.)
| | - Andrea Burgetova
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 121 08 Prague, Czech Republic;
| | - Ingfrid S. Haldorsen
- Mohn Medical Imaging and Visualization Centre (MMIV), Department of Radiology, Haukeland University Hospital, N-5021 Bergen, Norway;
- Section for Radiology, Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway
| | - Elena Gatti
- Department of Biomedical Science for Health, University of Milan, 20133 Milan, Italy;
| | - David Cibula
- Gynecologic Oncology Centre, Department of Gynaecology, Obstetrics and Neonatology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 121 08 Prague, Czech Republic; (F.F.); (D.C.)
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6
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Olthof EP, Bergink-Voorthuis BJ, Wenzel HHB, Mongula J, van der Velden J, Spijkerboer AM, Adam JA, Bekkers RLM, Beltman JJ, Slangen BFM, Nijman HW, Smolders RGV, van Trommel NE, Zusterzeel PLM, Zweemer RP, Stalpers LJA, Mom CH, van der Aa MA. Diagnostic accuracy of MRI, CT, and [ 18F]FDG-PET-CT in detecting lymph node metastases in clinically early-stage cervical cancer - a nationwide Dutch cohort study. Insights Imaging 2024; 15:36. [PMID: 38332397 PMCID: PMC10853153 DOI: 10.1186/s13244-023-01589-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/29/2023] [Indexed: 02/10/2024] Open
Abstract
OBJECTIVES Imaging is increasingly used to assess lymph node involvement in clinically early-stage cervical cancer. This retrospective study aimed to evaluate the diagnostic accuracy of MRI, CT, and [18F]FDG-PET-CT. METHODS Women with International Federation of Gynaecology and Obstetrics (FIGO) 2009 stage IA2-IIA cervical cancer and pretreatment imaging between 2009 and 2017 were selected from the Netherlands Cancer Registry. Patient-based and region-based (i.e. pelvic and common iliac) nodal status was extracted from radiology reports. Pathology results were considered the reference standard for calculating accuracy indices. Multiple imputation was used for missing pathology to limit verification bias risk. RESULTS Nodal assessment was performed in 1676 patients with MRI, 926 with CT, and 379 with [18F]FDG-PET-CT, with suspicious nodes detected in 17%, 16%, and 48%, respectively. [18F]FDG-PET-CT was used to confirm MRI/CT results in 95% of patients. Pathology results were imputed for 30% of patients. [18F]FDG-PET-CT outperformed MRI and CT in detecting patient-based nodal metastases with sensitivities of 80%, 48%, and 40%, and AUCs of 0.814, 0.706, and 0.667, respectively, but not in specificity: 79%, 92%, and 92%. Region-based analyses showed similar indices in the pelvic region, but worse performance in the common iliac region with AUCs of 0.575, 0.554, and 0.517, respectively. CONCLUSIONS [18F]FDG-PET-CT outperformed MRI and CT in detecting nodal metastases, which may be related to its use as a verification modality. However, MRI and CT had the highest specificity. As MRI is generally performed routinely to assess local and regional spread of cervical cancer, [18F]FDG-PET-CT can be used to confirm suspicious nodes. CRITICAL RELEVANCE STATEMENT Accurate assessment of the nodal status in clinically early-stage cervical cancer is essential for tumour staging, treatment decision making and prognosis. KEY POINTS • The accuracy of MRI, CT or [18F]FDG-PET-CT for nodal staging in early cervical cancer is a subject of discussion. • Overall, [18F]FDG-PET-CT outperformed MRI, followed by CT, when used as a verification modality. • Staging with MRI and the addition of [18F]FDG-PET-CT to verify high-risk cases seems to be a good approach.
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Affiliation(s)
- Ester P Olthof
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation (IKNL), Godebaldkwartier 419, DT, Utrecht, 3511, The Netherlands.
- Department of Gynecological Oncology, Amsterdam University Medical Center, Center for Gynecologic Oncology Amsterdam (CGOA), Amsterdam, The Netherlands.
| | - Brenda J Bergink-Voorthuis
- Department of Health Technology and Services Research, Technical Medical Center, University of Twente, Enschede, The Netherlands
| | - Hans H B Wenzel
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation (IKNL), Godebaldkwartier 419, DT, Utrecht, 3511, The Netherlands
| | - Jordy Mongula
- Department of Obstetrics and Gynaecology, Zuyderland Medical Center, Heerlen, The Netherlands
| | - Jacobus van der Velden
- Department of Gynecological Oncology, Amsterdam University Medical Center, Center for Gynecologic Oncology Amsterdam (CGOA), Amsterdam, The Netherlands
| | - Anje M Spijkerboer
- Department of Radiology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Judit A Adam
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Ruud L M Bekkers
- Department of Obstetrics and Gynaecology, Catharina Hospital, Eindhoven, The Netherlands
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Obstetrics and Gynecology, Medical Center and GROW School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Jogchum J Beltman
- Department of Gynaecology, Leiden University Medical Center, Leiden, The Netherlands
| | - Brigitte F M Slangen
- Department of Obstetrics and Gynecology, Medical Center and GROW School for Oncology and Reproduction, Maastricht University, Maastricht, The Netherlands
| | - Hans W Nijman
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, Groningen, The Netherlands
| | - Ramon G V Smolders
- Department of Gynaecological Oncology, Erasmus MC Cancer Institute University Medical Center, Rotterdam, The Netherlands
| | - Nienke E van Trommel
- Center for Gynaecologic Oncology Amsterdam (CGOA), The Netherlands Cancer Institute - Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - Petra L M Zusterzeel
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ronald P Zweemer
- Department of Gynaecological Oncology, University Medical Centre Utrecht, Utrecht Cancer Centre, Utrecht, The Netherlands
| | - Lukas J A Stalpers
- Department of Radiation Oncology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Constantijne H Mom
- Department of Gynecological Oncology, Amsterdam University Medical Center, Center for Gynecologic Oncology Amsterdam (CGOA), Amsterdam, The Netherlands
| | - Maaike A van der Aa
- Department of Research & Development, Netherlands Comprehensive Cancer Organisation (IKNL), Godebaldkwartier 419, DT, Utrecht, 3511, The Netherlands
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7
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Maeda M, Mabuchi S, Sakata M, Deguchi S, Kakubari R, Matsuzaki S, Hisa T, Kamiura S. Significance of tumor size and number of positive nodes in patients with FIGO 2018 stage IIIC1 cervical cancer. Jpn J Clin Oncol 2024; 54:146-152. [PMID: 37935434 DOI: 10.1093/jjco/hyad141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/27/2023] [Indexed: 11/09/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the prognostic significance of tumor size and number of positive pelvic lymph nodes (PLN) in International Federation of Gynecology and Obstetrics (FIGO) 2018 stage IIIC1 cervical cancer patients. METHODS Clinical data from 626 women with cervical cancer treated at Osaka International Cancer Center in 2010-2020 were retrospectively reviewed. Using the cutoff value obtained on the receiver operating characteristic analysis, the prognostic significance of tumor size and number of positive PLN in stage IIIC1 patients was first evaluated via uni- and multivariate analyses. Then, the impact of incorporating tumor size and number of positive PLN into the FIGO staging system was investigated using the Kaplan-Meier method. RESULTS Among 196 women with Stage IIIC1 disease, larger tumors (>4 cm) and multiple PLN metastases (≥4) were independent predictors of progression-free survival (PFS) in patients with stage IIIC1 cervical cancer. The PFS of patients with stage IIIC1 disease was inversely associated with the number of risk factors. Although patients with stage IIIC1 disease had significantly increased survival rates compared to those with stage IIIA or IIIB disease in the original FIGO 2018 staging system, this reversal phenomenon was resolved by incorporating larger tumors (>4 cm) and multiple PLN metastases (≥4) into the revised staging system. CONCLUSIONS Incorporating tumor size and number of metastatic lymph nodes into the FIGO staging system allows additional risk stratification for women with stage IIIC1 cervical cancer and improves survival prediction performance.
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Affiliation(s)
- Michihide Maeda
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Seiji Mabuchi
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Mina Sakata
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Satoki Deguchi
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Reisa Kakubari
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Shinya Matsuzaki
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Tsuyoshi Hisa
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
| | - Shoji Kamiura
- Department of Gynecology, Osaka International Cancer Institute, Osaka, Japan
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Guo Q, Qu L, Zhu J, Li H, Wu Y, Wang S, Yu M, Wu J, Wen H, Ju X, Wang X, Bi R, Shi Y, Wu X. Predicting Lymph Node Metastasis From Primary Cervical Squamous Cell Carcinoma Based on Deep Learning in Histopathologic Images. Mod Pathol 2023; 36:100316. [PMID: 37634868 DOI: 10.1016/j.modpat.2023.100316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/29/2023]
Abstract
We developed a deep learning framework to accurately predict the lymph node status of patients with cervical cancer based on hematoxylin and eosin-stained pathological sections of the primary tumor. In total, 1524 hematoxylin and eosin-stained whole slide images (WSIs) of primary cervical tumors from 564 patients were used in this retrospective, proof-of-concept study. Primary tumor sections (1161 WSIs) were obtained from 405 patients who underwent radical cervical cancer surgery at the Fudan University Shanghai Cancer Center (FUSCC) between 2008 and 2014; 165 and 240 patients were negative and positive for lymph node metastasis, respectively (including 166 with positive pelvic lymph nodes alone and 74 with positive pelvic and para-aortic lymph nodes). We constructed and trained a multi-instance deep convolutional neural network based on a multiscale attention mechanism, in which an internal independent test set (100 patients, 228 WSIs) from the FUSCC cohort and an external independent test set (159 patients, 363 WSIs) from the Cervical Squamous Cell Carcinoma and Endocervical Adenocarcinoma cohort of the Cancer Genome Atlas program database were used to evaluate the predictive performance of the network. In predicting the occurrence of lymph node metastasis, our network achieved areas under the receiver operating characteristic curve of 0.87 in the cross-validation set, 0.84 in the internal independent test set of the FUSCC cohort, and 0.75 in the external test set of the Cervical Squamous Cell Carcinoma and Endocervical Adenocarcinoma cohort of the Cancer Genome Atlas program. For patients with positive pelvic lymph node metastases, we retrained the network to predict whether they also had para-aortic lymph node metastases. Our network achieved areas under the receiver operating characteristic curve of 0.91 in the cross-validation set and 0.88 in the test set of the FUSCC cohort. Deep learning analysis based on pathological images of primary foci is very likely to provide new ideas for preoperatively assessing cervical cancer lymph node status; its true value must be validated with cervical biopsy specimens and large multicenter datasets.
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Affiliation(s)
- Qinhao Guo
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Linhao Qu
- Digital Medical Research Center, School of Basic Medical Sciences, Fudan University, Shanghai, China; Shanghai Key Laboratory of Medical Imaging Computing and Computer Assisted Intervention, Fudan University, Shanghai, China
| | - Jun Zhu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Haiming Li
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Radiology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Yong Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Simin Wang
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Min Yu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jiangchun Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao Wen
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xingzhu Ju
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xin Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Pathology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Rui Bi
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; Department of Pathology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.
| | - Yonghong Shi
- Digital Medical Research Center, School of Basic Medical Sciences, Fudan University, Shanghai, China; Shanghai Key Laboratory of Medical Imaging Computing and Computer Assisted Intervention, Fudan University, Shanghai, China.
| | - Xiaohua Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
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9
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Lakhman Y, Aherne EA, Jayaprakasam VS, Nougaret S, Reinhold C. Staging of Cervical Cancer: A Practical Approach Using MRI and FDG PET. AJR Am J Roentgenol 2023; 221:633-648. [PMID: 37459457 PMCID: PMC467038 DOI: 10.2214/ajr.23.29003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
This review provides a practical approach to the imaging evaluation of patients with cervical cancer (CC), from initial diagnosis to restaging of recurrence, focusing on MRI and FDG PET. The primary updates to the International Federation of Gynecology and Obstetrics (FIGO) CC staging system, as well as these updates' relevance to clinical management, are discussed. The recent literature investigating the role of MRI and FDG PET in CC staging and image-guided brachytherapy is summarized. The utility of MRI and FDG PET in response assessment and posttreatment surveillance is described. Important findings on MRI and FDG PET that interpreting radiologists should recognize and report are illustrated. The essential elements of structured reports during various phases of CC management are outlined. Special considerations, including the role of imaging in patients desiring fertility-sparing management, differentiation of CC and endometrial cancer, and unusual CC histologies, are also described. Finally, future research directions including PET/MRI, novel PET tracers, and artificial intelligence applications are highlighted.
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Affiliation(s)
- Yulia Lakhman
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY 10065
| | - Emily A Aherne
- Department of Radiology, Cork University Hospital, Cork, Ireland
| | - Vetri Sudar Jayaprakasam
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY 10065
| | - Stephanie Nougaret
- Department of Radiology, Montpellier Cancer Institute, Montpellier, France
- Pinkcc Lab, IRCM, Montpellier, France
| | - Caroline Reinhold
- Department of Radiology, McGill University Health Centre, McGill University, Montreal, QC, Canada
- Augmented Intelligence & Precision Health Laboratory, Research Institute of McGill University Health Centre, Montreal, QC, Canada
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10
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Isaji Y, Tsuyoshi H, Tsujikawa T, Orisaka M, Okazawa H, Yoshida Y. Prognostic value of 18F-FDG PET in uterine cervical cancer patients with stage IIICr allocated by imaging. Sci Rep 2023; 13:18864. [PMID: 37914892 PMCID: PMC10620427 DOI: 10.1038/s41598-023-46261-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/30/2023] [Indexed: 11/03/2023] Open
Abstract
The effect on survival of radiographic lymph node metastasis in uterine cervical cancer patients is more important than before, even though its prognostic value not been well investigated. The aim of our study is to evaluate the prognostic potential of 18F-fluorodeoxyglucose Positron Emission Tomography (18F-FDG PET) compared with Computed Tomography (CT) in uterine cervical cancer patients with stage IIICr allocated by imaging. Fifty-five patients with biopsy-proven primary cervical cancer underwent definitive radiation therapy for stages IIB-IVB of The International Federation of Gynecology and Obstetrics (FIGO) 2018 classifications. The prognostic performance of pretreatment 18F-FDG PET and CT for assessing lymph node metastasis was evaluated by two experienced readers. The PET and CT findings were correlated with the risk of progression-free survival (PFS) and overall survival (OS). Kaplan-Meier survival curves showed that PFS was significantly worse in patients with positive lymph nodes on 18F-FDG PET than in those patients with negative lymph nodes on 18F-FDG PET (p = 0.003), whereas there was no significant difference in PFS between patients with lymph nodes sized ≥ 1 cm and those sized < 1 cm (p = 0.140). Univariate analysis showed that positive lymph nodes on 18F-FDG PET was significantly associated with poor PFS (p = 0.006), whereas lymph node size was not significantly associated with poor PFS (p = 0.145). In multivariate analysis, positive lymph nodes on 18F-FDG PET was significantly associated with poor PFS (p = 0.006) and was an independent prognostic factor for PFS. 18F-FDG PET offers high prognostic value for patients with stage IIICr allocated by imaging compared with CT, suggesting that 18F-FDG PET might be useful in clinical staging decisions and thus promote optimal diagnostic and therapeutic strategies.
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Affiliation(s)
- Yuzu Isaji
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Hideaki Tsuyoshi
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.
| | | | - Makoto Orisaka
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Hidehiko Okazawa
- Biomedical Imaging Research Center, University of Fukui, Fukui, Japan
| | - Yoshio Yoshida
- Department of Obstetrics and Gynecology, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
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11
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Shakur A, Lee JYJ, Freeman S. An Update on the Role of MRI in Treatment Stratification of Patients with Cervical Cancer. Cancers (Basel) 2023; 15:5105. [PMID: 37894476 PMCID: PMC10605640 DOI: 10.3390/cancers15205105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Cervical cancer is the fourth most common cancer in women worldwide and the most common gynaecological malignancy. The FIGO staging system is the most commonly utilised classification system for cervical cancer worldwide. Prior to the most recent update in the FIGO staging in 2018, the staging was dependent upon clinical assessment alone. Concordance between the surgical and clinical FIGO staging decreases rapidly as the tumour becomes more advanced. MRI now plays a central role in patients diagnosed with cervical cancer and enables accurate staging, which is essential to determining the most appropriate treatment. MRI is the best imaging option for the assessment of tumour size, location, and parametrial and sidewall invasion. Notably, the presence of parametrial invasion precludes surgical options, and the patient will be triaged to chemoradiotherapy. As imaging is intrinsic to the new 2018 FIGO staging system, nodal metastases have been included within the classification as stage IIIC disease. The presence of lymph node metastases within the pelvis or abdomen is associated with a poorer prognosis, which previously could not be included in the staging classification as these could not be reliably detected on clinical examination. MRI findings corresponding to the 2018 revised FIGO staging of cervical cancers and their impact on treatment selection will be described.
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Affiliation(s)
| | | | - Sue Freeman
- Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK; (A.S.); (J.Y.J.L.)
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12
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Li J, Zhou H, Lu X, Wang Y, Pang H, Cesar D, Liu A, Zhou P. Preoperative prediction of cervical cancer survival using a high-resolution MRI-based radiomics nomogram. BMC Med Imaging 2023; 23:153. [PMID: 37821840 PMCID: PMC10568765 DOI: 10.1186/s12880-023-01111-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Cervical cancer patients receiving radiotherapy and chemotherapy require accurate survival prediction methods. The objective of this study was to develop a prognostic analysis model based on a radiomics score to predict overall survival (OS) in cervical cancer patients. METHODS Predictive models were developed using data from 62 cervical cancer patients who underwent radical hysterectomy between June 2020 and June 2021. Radiological features were extracted from T2-weighted (T2W), T1-weighted (T1W), and diffusion-weighted (DW) magnetic resonance images prior to treatment. We obtained the radiomics score (rad-score) using least absolute shrinkage and selection operator (LASSO) regression and Cox's proportional hazard model. We divided the patients into low- and high-risk groups according to the critical rad-score value, and generated a nomogram incorporating radiological features. We evaluated the model's prediction performance using area under the receiver operating characteristic (ROC) curve (AUC) and classified the participants into high- and low-risk groups based on radiological characteristics. RESULTS The 62 patients were divided into high-risk (n = 43) and low-risk (n = 19) groups based on the rad-score. Four feature parameters were selected via dimensionality reduction, and the scores were calculated after modeling. The AUC values of ROC curves for prediction of 3- and 5-year OS using the model were 0.84 and 0.93, respectively. CONCLUSION Our nomogram incorporating a combination of radiological features demonstrated good performance in predicting cervical cancer OS. This study highlights the potential of radiomics analysis in improving survival prediction for cervical cancer patients. However, further studies on a larger scale and external validation cohorts are necessary to validate its potential clinical utility.
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Affiliation(s)
- Jia Li
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hao Zhou
- Department of Cardiology, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu, China
| | - Xiaofei Lu
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yiren Wang
- School of Nursing, Southwest Medical University, Luzhou, China
| | - Haowen Pang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Daniel Cesar
- Department of Gynecology Oncology, National Cancer Institute, Rio de Janeiro, Brazil
| | - Aiai Liu
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
| | - Ping Zhou
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.
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13
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Wolswinkel JT, Eikelder MLGT, Verhoef CG, Zusterzeel PLM. High- or Intermediate-Risk Histologic Features in Patients with Clinical Early-Stage Cervical Cancer Planned for Fertility-Sparing Surgery: A Systematic Review. Cancers (Basel) 2023; 15:3920. [PMID: 37568735 PMCID: PMC10417237 DOI: 10.3390/cancers15153920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Fertility-sparing surgery (FSS) is a viable option for young women with early-stage cervical cancer (ECC); however, certain risk factors may necessitate additional treatments and impact fertility. This review examines the prevalence of these risk factors and available treatment options. METHODS A systematic search was conducted of studies including patients with ECC (IA1 with LVSI, IA2, IB1 (FIGO 2009)) who underwent FSS. RESULTS Sixty-four articles, comprising a total of 4118 women planned for FSS, were included. High- or intermediate-risk histologic features were found in 638 (15.5%) women: 5.1% had positive lymph node(s), 4.1% had positive resection margins, 0.3% had parametrial involvement, 1.0% had unspecified high-risk features, and 5.1% had intermediate-risk histology (primarily based on the Sedlis criteria). Adjuvant treatment impaired fertility in all women with adjuvant hysterectomy and/or (chemo)radiation (58.7%). Adjuvant chemotherapy was given to 1351 (32.8%) patients, which may reduce fertility. CONCLUSIONS Fertility preservation could be achieved in most women; but high- or intermediate-risk factors necessitate more extensive surgery or radiotherapy leading to infertility. Adjuvant chemotherapy could be an alternative treatment option considering its effectiveness, safety and higher change in fertility preservation. The low incidence of parametrial involvement justifies waiving parametrectomy in tumors < 2 cm.
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Affiliation(s)
- Janneke T. Wolswinkel
- Department of Obstetrics and Gynecology, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands; (J.T.W.); (M.L.G.t.E.)
| | - Mieke L. G. ten Eikelder
- Department of Obstetrics and Gynecology, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands; (J.T.W.); (M.L.G.t.E.)
| | - Cornelia G. Verhoef
- Department of Radiation Oncology, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands;
| | - Petra L. M. Zusterzeel
- Department of Obstetrics and Gynecology, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands; (J.T.W.); (M.L.G.t.E.)
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14
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Jacobsen MC, Maheshwari E, Klopp AH, Venkatesan AM. Image-Guided Radiotherapy for Gynecologic Malignancies: What the Radiologist Needs to Know. Radiol Clin North Am 2023; 61:725-747. [PMID: 37169434 DOI: 10.1016/j.rcl.2023.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Pelvic imaging is integral to contemporary radiotherapy (RT) management of gynecologic malignancies. For cervical, endometrial, vulvar, and vaginal cancers, three-dimensional imaging modalities aid in tumor staging and RT candidate selection and inform treatment strategy, including RT planning, execution, and posttherapy surveillance. State-of-the-art care routinely incorporates magnetic resonance (MR) imaging, 18F-fluorodeoxyglucose-PET/computed tomography (CT), and CT to guide external beam RT and brachytherapy, allowing the customization of RT plans to maximize patient outcomes and reduce treatment-related toxicities. Follow-up imaging identifies radiation-resistant and recurrent disease as well as short-term and long-term toxicities from RT.
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Affiliation(s)
- Megan C Jacobsen
- Division of Diagnostic Imaging, Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1472, Houston, TX 77030, USA. https://twitter.com/megjacobsen
| | - Ekta Maheshwari
- Division of Abdominal Imaging, Department of Radiology, University of Pittsburgh Medical Center, PUH Suite E204, 200 Lothrop St, Pittsburgh, PA 15213, USA. https://twitter.com/dr_ektam
| | - Ann H Klopp
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Houston, TX 77030, USA. https://twitter.com/AnnKloppMD
| | - Aradhana M Venkatesan
- Division of Diagnostic Imaging, Department of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Unit 1473, Houston, TX 77030, USA.
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15
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Kaanders JHAM, Bussink J, Aarntzen EHJG, Braam P, Rütten H, van der Maazen RWM, Verheij M, van den Bosch S. [18F]FDG-PET-Based Personalized Radiotherapy Dose Prescription. Semin Radiat Oncol 2023; 33:287-297. [PMID: 37331783 DOI: 10.1016/j.semradonc.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
PET imaging with 2'-deoxy-2'-[18F]fluoro-D-glucose ([18F]FDG) has become one of the pillars in the management of malignant diseases. It has proven value in diagnostic workup, treatment policy, follow-up, and as prognosticator for outcome. [18F]FDG is widely available and standards have been developed for PET acquisition protocols and quantitative analyses. More recently, [18F]FDG-PET is also starting to be appreciated as a decision aid for treatment personalization. This review focuses on the potential of [18F]FDG-PET for individualized radiotherapy dose prescription. This includes dose painting, gradient dose prescription, and [18F]FDG-PET guided response-adapted dose prescription. The current status, progress, and future expectations of these developments for various tumor types are discussed.
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Affiliation(s)
- Johannes H A M Kaanders
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands..
| | - Johan Bussink
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands
| | - Erik H J G Aarntzen
- Department of Medical Imaging, Radboud university medical center, Nijmegen, The Netherlands
| | - Pètra Braam
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands
| | - Heidi Rütten
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands
| | | | - Marcel Verheij
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands
| | - Sven van den Bosch
- Department of Radiation Oncology, Radboud university medical center, Nijmegen, The Netherlands
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16
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Pautier P, Genestie C, Gladieff L, Kurtz JE, Lortholary A, de La Motte Rouge T, Gaillard AL, Ducassou A, Dubot C, Rouleau E, Narducci F, Demontoy S, Hennequin C. Recommandations pour la pratique clinique Nice/Saint-Paul-de-Vence 2022–2023 : Prise en charge du cancer du col de l'utérus avancé. Bull Cancer 2023; 110:6S44-6S50. [PMID: 37573038 DOI: 10.1016/s0007-4551(23)00333-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2023]
Abstract
French recommendations for clinical practice, Nice/Saint-Paul-de-Vence 2022-2023: Management of advanced cervical cancer The prognosis of cervical cancer remained pejorative until recently, first-line treatment consisting of platinum-based chemotherapy, associated with bevacizumab whenever possible, without any other therapeutic innovation for several years. However in 2022, immunotherapy appeared in the therapeutic landscape. Pembrolizumab can now be prescribed, thanks to the early access status granted by the HAS in September 2022, in patients with PD-L1 positive tumors. In parallel, bevacizumab generic is now reimbursed, allowing its association with chemotherapy on top of pembrolizumab, if indicated. For patient relapsing after platinium salts, and who never received immunotherapy, cemiplimab could be delivered and reimboursed since spring 2023, whatever could be PD-L1 status. Pretherapeutic work-up includes imaging combining MRI and PET/CT or CT of the chest, abdomen and pelvis, as well as evaluation of PD-L1 status on tumor and immune cells to define the CPS score that will determine eligibility to pembrolizumab treatment (CPS > 1). Possibilities of locoregional treatment depend on individual situations and are discussed on a case-by-case basis in multidisciplinary meetings. Early supportive care is always recommended and inclusion in clinical trials must be systematically considered.
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Affiliation(s)
- Patricia Pautier
- Département d'oncologie médicale, service de gynécologie, Gustave-Roussy, Villejuif, France.
| | | | - Laurence Gladieff
- Département d'oncologie médicale, institut Claudius-Régaud, Toulouse, France
| | - Jean-Emmanuel Kurtz
- Département d'oncologie médicale, institut de cancérologie de Strasbourg, Strasbourg, France
| | - Alain Lortholary
- Service d'oncologie médicale, institut de cancérologie Catherine-de-Sienne, Nantes, France
| | | | | | - Anne Ducassou
- Département de radiothérapie, institut Claudius-Régaud, Toulouse, France
| | - Coraline Dubot
- Département d'oncologie médicale, centre François-Baclesse, Caen, France
| | - Etienne Rouleau
- Service de génétique des tumeurs, Gustave-Roussy, Villejuif, France
| | - Fabrice Narducci
- Département de cancérologie gynécologique, centre Oscar-Lambret, Lille, France
| | - Sylvain Demontoy
- Département de radiothérapie, institut du cancer de Montpellier, Montpellier, France
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17
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Kim NR, Kim SI, Suh DH, Kim HS, Kim K, Chung HH, No JH, Kim YB, Kim JW, Park NH, Song YS, Choi CH, Lee M. Survival outcomes of laparoscopic versus open radical hysterectomy in early cervical cancer with incidentally identified high-risk factors. Gynecol Oncol 2023; 174:224-230. [PMID: 37229880 DOI: 10.1016/j.ygyno.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Previously, we suggested that patients with cervical cancer (CC) with tumors ≤2 cm on preoperative magnetic resonance imaging (MRI) are safe candidates for laparoscopic radical hysterectomy (LRH). Here, we aim to investigate whether LRH deteriorates the prognosis of patients with incidentally identified high-risk factors; lymph node metastasis (LNM) or parametrial invasion (PMI). METHODS We identified patients with 2009 FIGO stage IB1 CC who underwent Type C LRH or open radical hysterectomy (ORH) at three tertiary hospitals between 2000 and 2019. Those with a tumor ≤2 cm on preoperative MRI who were not suspicious of LNM or PMI preoperatively were included, while those who were indicated to receive adjuvant treatment but did not actually receive it were excluded. Survival outcomes were compared between the LRH and ORH groups in the overall population, then narrowed down to those with LNM, and then to those with PMI. RESULTS In total, 498 patients were included: 299 in the LRH group and 199 in the ORH group. The LRH and ORH groups showed similar 3-year progression-free survival (PFS) (94.0% vs. 93.6%; P = 0.615) and 5-year overall survival (OS) rates (97.2% vs. 96.8%; P = 0.439). On pathologic examination, 49 (9.8%) and 16 (3.2%) patients had LNM and PMI, respectively, and 10 (2.0%) had both. In the LNM subgroup, 5-year PFS rate was not significantly different between the LRH and ORH groups (73.2% vs. 91.7%; P = 0.169). In the PMI subgroup, no difference in PFS was observed between the two groups (P = 0.893). CONCLUSIONS LRH might not deteriorate recurrence and mortality rates in CC patients with tumors ≤2 cm when adjuvant treatment is appropriately administered, even if pathologic LNM and PMI are incidentally identified.
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Affiliation(s)
- Nae Ry Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Se Ik Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong Hoon Suh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hee Seung Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kidong Kim
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hyun Hoon Chung
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jae Hong No
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Yong Beom Kim
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jae-Weon Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Noh Hyun Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yong-Sang Song
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Chel Hun Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Maria Lee
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea.
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18
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Nasioudis D, George EM, Tanyi JL. Controversies in the Staging of Patients with Locally Advanced Cervical Cancer. Diagnostics (Basel) 2023; 13:diagnostics13101747. [PMID: 37238231 DOI: 10.3390/diagnostics13101747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Approximately 10-25% of patients with locally advanced cervical cancer harbor metastases to the para-aortic lymph nodes. Staging of patients with locally advanced cervical cancer can be performed with imaging techniques, such as PET-CT; however, false negative rates can be as high as 20%, especially for patients with pelvic lymph node metastases. Surgical staging can identify patients with microscopic lymph nodes metastases and aid in accurate treatment planning with the administration of extended-field radiation therapy. Data from retrospective studies investigating the impact of para-aortic lymphadenectomy on the oncological outcomes of patients with locally advanced cervical cancer are mixed, while data from randomized controlled trials do not demonstrate a progression-free survival benefit. In the present review, we explore controversies in the staging of patients with locally advanced cervical cancer and summarize the available literature.
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Affiliation(s)
- Dimitrios Nasioudis
- Division of Gynecologic Oncology, University of Pennsylvania, Philadephia, PA 19104, USA
| | - Erin M George
- Division of Gynecologic Oncology, University of Pennsylvania, Philadephia, PA 19104, USA
| | - Janos L Tanyi
- Division of Gynecologic Oncology, University of Pennsylvania, Philadephia, PA 19104, USA
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19
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Qian W, Chen Q, Hu C. Whole-Lesion Apparent Diffusion Coefficient Histogram Analysis for Assessing Normal-Sized Lymph Node Metastasis in Cervical Cancer: Comparison Between Readout-Segmented and Single-Shot Echo-Planar Diffusion-Weighted Imaging. J Comput Assist Tomogr 2023; Publish Ahead of Print:00004728-990000000-00161. [PMID: 37380155 DOI: 10.1097/rct.0000000000001463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
OBJECTIVE To compare the value of whole-lesion apparent diffusion coefficient (ADC) histogram analysis derived from readout-segmented echo-planar imaging (RS-EPI) and single-shot echo-planar imaging (SS-EPI) diffusion-weighted imaging (DWI) in evaluating normal-sized lymph node metastasis (LNM) in cervical cancer. METHODS Seventy-six pathologically confirmed cervical cancer patients (stages IB and IIA) were enrolled, including 61 patients with non-LNM (group A) and 15 patients with normal-sized LNM (group B). The recorded tumor volume on T2-weighted imaging was the reference against which both DWIs were evaluated. Each ADC histogram parameter (including ADCmax, ADC90, ADCmedian, ADCmean, ADC10, ADCmin, ADCskewness, ADCkurtosis, and ADCentropy) was compared between SS-EPI and RS-EPI and between the 2 groups. RESULTS There was no significant difference in tumor volume between the 2 DWIs and T2-weighted imaging (both P > 0.05). Higher ADCmax and ADCentropy but lower ADC10, ADCmin and ADCskewness were found in SS-EPI than those in RS-EPI (all P < 0.05). For SS-EPI, lower ADC90 and higher ADCkurtosis were found in group B than those in group A (both P < 0.05). For RS-EPI, lower ADC90 and higher ADCkurtosis and ADCentropy were found in group B than those in group A (all P < 0.05). Readout-segmented echo-planar imaging ADCkurtosis showed the highest area under the curve of 0.792 in the differentiation of the 2 groups (sensitivity, 80%; specificity, 73.77%). CONCLUSIONS Compared with SS-EPI, the ADC histogram parameters derived from RS-EPI were more accurate, and ADCkurtosis held great potential in differentiating normal-sized LNM in cervical cancer.
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Affiliation(s)
| | - Qian Chen
- Department of Radiology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou City, Jiangsu Province, China
| | - Chunhong Hu
- From the Department of Radiology, the First Affiliated Hospital of Soochow University; and
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20
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Amide Proton Transfer-Weighted Imaging Combined with ZOOMit Diffusion Kurtosis Imaging in Predicting Lymph Node Metastasis of Cervical Cancer. Bioengineering (Basel) 2023; 10:bioengineering10030331. [PMID: 36978722 PMCID: PMC10045132 DOI: 10.3390/bioengineering10030331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/23/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Background: The aim of this study is to investigate the feasibility of amide proton transfer-weighted (APTw) imaging combined with ZOOMit diffusion kurtosis imaging (DKI) in predicting lymph node metastasis (LNM) in cervical cancer (CC). Materials and Methods: Sixty-one participants with pathologically confirmed CC were included in this retrospective study. The APTw MRI and ZOOMit diffusion-weighted imaging (DWI) were acquired. The mean values of APTw and DKI parameters including mean kurtosis (MK) and mean diffusivity (MD) of the primary tumors were calculated. The parameters were compared between the LNM and non-LNM groups using the Student’s t-test or Mann–Whitney U test. Binary logistic regression analysis was performed to determine the association between the LNM status and the risk factors. The diagnostic performance of these quantitative parameters and their combinations for predicting the LNM was assessed with receiver operating characteristic (ROC) curve analysis. Results: Patients were divided into the LNM group (n = 17) and the non-LNM group (n = 44). The LNM group presented significantly higher APTw (3.7 ± 1.1% vs. 2.4 ± 1.0%, p < 0.001), MK (1.065 ± 0.185 vs. 0.909 ± 0.189, p = 0.005) and lower MD (0.989 ± 0.195 × 10−3 mm2/s vs. 1.193 ± 0.337 ×10−3 mm2/s, p = 0.035) than the non-LNM group. APTw was an independent predictor (OR = 3.115, p = 0.039) for evaluating the lymph node status through multivariate analysis. The area under the curve (AUC) of APTw (0.807) was higher than those of MK (AUC, 0.715) and MD (AUC, 0.675) for discriminating LNM from non-LNM, but the differences were not significant (all p > 0.05). Moreover, the combination of APTw, MK, and MD yielded the highest AUC (0.864), with the corresponding sensitivity of 76.5% and specificity of 88.6%. Conclusion: APTw and ZOOMit DKI parameters may serve as potential noninvasive biomarkers in predicting LNM of CC.
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21
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Chung J, Akter S, Han S, Shin Y, Choi TG, Kang I, Kim SS. Diagnosis by Volatile Organic Compounds in Exhaled Breath in Exhaled Breath from Patients with Gastric and Colorectal Cancers. Int J Mol Sci 2022; 24:ijms24010129. [PMID: 36613569 PMCID: PMC9820758 DOI: 10.3390/ijms24010129] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
One in three cancer deaths worldwide are caused by gastric and colorectal cancer malignancies. Although the incidence and fatality rates differ significantly from country to country, the rates of these cancers in East Asian nations such as South Korea and Japan have been increasing each year. Above all, the biggest danger of this disease is how challenging it is to recognize in its early stages. Moreover, most patients with these cancers do not present with any disease symptoms before receiving a definitive diagnosis. Currently, volatile organic compounds (VOCs) are being used for the early prediction of several other diseases, and research has been carried out on these applications. Exhaled VOCs from patients possess remarkable potential as novel biomarkers, and their analysis could be transformative in the prevention and early diagnosis of colon and stomach cancers. VOCs have been spotlighted in recent studies due to their ease of use. Diagnosis on the basis of patient VOC analysis takes less time than methods using gas chromatography, and results in the literature demonstrate that it is possible to determine whether a patient has certain diseases by using organic compounds in their breath as indicators. This study describes how VOCs can be used to precisely detect cancers; as more data are accumulated, the accuracy of this method will increase, and it can be applied in more fields.
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Affiliation(s)
- Jinwook Chung
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Salima Akter
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sunhee Han
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Yoonhwa Shin
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Tae Gyu Choi
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Insug Kang
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (I.K.); (S.S.K.); Tel.: +82-2-961-0524 (S.S.K.)
| | - Sung Soo Kim
- Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: (I.K.); (S.S.K.); Tel.: +82-2-961-0524 (S.S.K.)
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22
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Martinez A, Chantalat E, Angeles MA, Ferron G, Ducassou A, Daix M, Attal J, Bétrian S, Lusque A, Gabiache E. Metabolic activity determines survival depending on the level of lymph node involvement in cervical cancer. BMC Cancer 2022; 22:810. [PMID: 35870900 PMCID: PMC9308355 DOI: 10.1186/s12885-022-09785-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
Background To assess the impact of PET/CT functional parameters on survival, locoregional, and distant failure according to the most distant level of lymph node [18F]FDG uptake in patients with locally advanced cervical cancer (LACC). Methods Retrospective study including 148 patients with LACC treated with concurrent chemoradiotherapy after PET/CT and para-aortic lymph node (PALN) surgical staging. Two senior nuclear medicine physicians reviewed all PET/CT exams and retrieved tumor and lymph node metabolic parameters: SUVmax, MTV, TLG. Oncological outcomes according to metabolic parameters and level of lymph node spread on PET/CT were assessed. Results In patients without lymph node uptake on PET/CT, high MTV values of the cervical tumor were associated with DFS (HR = 5.14 95%CI = [2.15–12.31]), OS (HR = 6.10 95%CI = [1.89–19.70]), and time to distant (HR = 4.73 95%CI = [1.55–14.44]) and locoregional recurrence (HR = 5.18 95%CI = [1.72–15.60]). In patients with pelvic lymph node (PLN) uptake but without PALN uptake on [18F]FDG-PET/CT, high MTV values of the cervical tumor were associated with DFS (HR = 3.17 95%CI = [1.02–9.83]) and OS (HR = 3.46 95%CI = [0.96–12.50]), and the number of PLN fixations was associated with DFS (HR = 1.30 95%CI = [1.10–1.53]), OS (HR = 1.35 95%CI = [1.11–1.64]), and time to distant (HR = 1.35 95%CI = [1.08–1.67]) and locoregional recurrence (HR = 1.31 95%CI = [1.08–1.59]). There was no significant association between cervical tumor metabolic or lymph node metrics and survival outcome in patients with PALN uptake. Conclusions Cervical MTV is more accurate than SUVmax to predict survival outcome in patients with locoregional disease confined to the pelvis and should be implemented in routine clinical practice. Prognostic value of metabolic metrics disappears with PALN uptake, which is associated with distant failure in nearly half of patients.
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23
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Ren J, Li Y, Liu XY, Zhao J, He YL, Jin ZY, Xue HD. Diagnostic performance of ADC values and MRI-based radiomics analysis for detecting lymph node metastasis in patients with cervical cancer: A systematic review and meta-analysis. Eur J Radiol 2022; 156:110504. [PMID: 36108474 DOI: 10.1016/j.ejrad.2022.110504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/16/2022] [Accepted: 08/25/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To evaluate and compare the diagnostic performance of apparent diffusion coefficient (ADC) values and MRI-based radiomics analysis for lymph node metastasis (LNM) detection in patients with cervical cancer (CC). METHODS We searched relevant databases for studies on ADC values and MRI-based radiomics analysis for LNM detection in CC between January 2001 and December 2021. Methodological quality assessment of risk of bias using Quality Assessment of Diagnostic Accuracy Studies 2 and radiomics quality score (RQS) of the studies was conducted. The pooled sensitivity, specificity, positive likelihood ratio (LR+), negative likelihood ratio (LR-), diagnostic odds ratio (DOR), and area under the curve (AUC) were calculated. Diagnostic performance was compared between the two quantitative analyses using a two-sample Z-test. RESULTS In total, 22 studies including 2314 patients were included. Unclear risk of bias was observed in 4.5-36.4% of the studies. The 8 radiomics studies exhibited a median (interquartile range) RQS of 13.5 (5.5-15.75). The pooled sensitivity, specificity, LR+, LR-, DOR, and AUC of the ADC values vs radiomics analysis were 0.86 vs 0.84, 0.85 vs 0.73, 5.7 vs 3.1, 0.17 vs 0.22, 34 vs 14, and 0.91 vs 0.86, respectively. There was no threshold effect or publication bias, but significant heterogeneity existed among the studies. No significant difference was detected in the diagnostic performance of the two quantitative analyses using the Z-test. CONCLUSION ADC values are more clinically promising because they are more easily accessible and widely applied, and exhibit a non-statistically significant trend to outperform radiomics analysis.
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Affiliation(s)
- Jing Ren
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
| | - Yuan Li
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, PR China.
| | - Xin-Yu Liu
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
| | - Jia Zhao
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
| | - Yong-Lan He
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
| | - Zheng-Yu Jin
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
| | - Hua-Dan Xue
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, PR China.
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24
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Vickers AJ, Woo S. Decision curve analysis in the evaluation of radiology research. Eur Radiol 2022; 32:5787-5789. [PMID: 35348862 DOI: 10.1007/s00330-022-08685-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/11/2022] [Accepted: 02/15/2022] [Indexed: 01/25/2023]
Affiliation(s)
- Andrew J Vickers
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, 485 Lexington Ave, 2nd Floor, New York, NY, 10017, USA.
| | - Sungmin Woo
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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25
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Ghani M, Liau J, Eskander R, Mell L, Yusufaly T, Obrzut S. Imaging Biomarkers and Liquid Biopsy in Assessment of Cervical Cancer. J Comput Assist Tomogr 2022; 46:707-715. [PMID: 35995483 PMCID: PMC9474655 DOI: 10.1097/rct.0000000000001358] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT The role of imaging has been increasing in pretherapy planning and response assessment in cervical cancer, particularly in high-resource settings that provide access to computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET). In 2018, imaging was incorporated into the International Federation of Gynecology and Obstetrics staging system for cervical cancer. Magnetic resonance imaging is advantageous over CT for evaluation of the primary cervical cancer size and extent, because of superior contrast resolution. Furthermore, quantitative methods, including diffusion-weighted and dynamic contrast-enhanced MRI, show promise in improving treatment response and prognosis evaluation. Molecular imaging with fluorodeoxyglucose-PET/CT and PET/MRI can be particularly helpful in the detection of nodal disease and distant metastases. Semiautomated delineation of 3-dimensional tumor regions of interest has facilitated the development of novel PET-derived biomarkers that include metabolic volume and radiomics textural analysis features for prediction of outcomes. However, posttreatment inflammatory changes can be a confounder and lymph node evaluation is challenging, even with the use of PET/CT. Liquid biopsy has emerged as a promising tool that may be able to overcome some of the drawbacks inherent with imaging, such as limited ability to detect microscopic metastases or to distinguish between postchemoradiotherapy changes and residual tumor. Preliminary evidence suggests that liquid biopsy may be able to identify cervical cancer treatment response and resistance earlier than traditional methods. Future work should prioritize how to best synergize imaging and liquid biopsy as an integrated approach for optimal cervical cancer management.
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Affiliation(s)
- Mansur Ghani
- Department of Radiology, University of California San Diego, CA, USA
| | - Joy Liau
- Department of Radiology, University of California San Diego, CA, USA
| | - Ramez Eskander
- Division of Hematology/Oncology, University of California San Diego, CA, USA
| | - Loren Mell
- Department of Radiation Oncology, University of California San Diego, CA, USA
| | - Tahir Yusufaly
- Department of Radiology, Johns Hopkins University, MD, USA
| | - Sebastian Obrzut
- Department of Radiology, University of California San Diego, CA, USA
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26
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Li H, Wang S, Liu Y, Wang T, Jin S, Liu Z. Prophylactic extended-field irradiation for locally advanced cervical cancer. Gynecol Oncol 2022; 166:606-613. [PMID: 35868881 DOI: 10.1016/j.ygyno.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/03/2022] [Accepted: 07/10/2022] [Indexed: 11/04/2022]
Abstract
Concomitant chemoradiotherapy is the standard treatment for locally advanced cervical cancer. Pelvic irradiation is commonly recommended for patients with negative para-aortic lymph nodes(PALNs). However, owing to the development of imaging-guided brachytherapy, distant failure has become the main failure pattern. The PALNs are a vital site of distant metastasis, and the para-aortic region may contain occult microscopic metastases that are barely detected owing to imaging technology restriction. The prognostic of patients who experienced PALN failure is dismal. Typically, there are four ways to decrease PALN failure. First, surgical staging can be performed to assess the occurrence of metastasis in the para-aortic region; however, the application of surgical staging is decreasing owing to controversial survival benefits and accompanying complications of surgery. Second, regular imaging surveillance and timely salvage of early recurrences could reduce PALN failure. Third, better systemic adjuvant therapy could be recommended since it has enormous potential to reduce distant metastases and improve overall survival. Fourth, performing prophylactic extended-field irradiation (EFI), including pelvic and para-aortic region irradiation, can sterilize occult microscopic metastases in the para-aortic region and improve survival. Prior investigations have revealed that prophylactic EFI could reduce PALN failure as well as distant metastasis and present the benefit of survival. Yet, owing to the serious morbidity induced by enlarged irradiation field in the era of conventional irradiation techniques, further research on EFI is stagnated. Nowadays, with the development of new technologies, intensity modulated radiation therapy can deliver a higher dose to tumors with acceptable toxicity. Prophylactic EFI regained attention. However, the inclusion criteria of prophylactic EFI in existing studies reveal great discrepancies. Thus, it is urgent to precisely identify indications for better survival and lower complications in patients with cervical cancer. In this review, we identify indications and summary guidelines for prophylactic EFI, which may provide a foundation for further trials and clinical applications.
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Affiliation(s)
- Huanhuan Li
- Department of radiation oncology, The Second affiliated Hospital of Jilin University, Changchun 130041, China
| | - Shu Wang
- Department of radiation oncology, The Second affiliated Hospital of Jilin University, Changchun 130041, China
| | - Yingying Liu
- Department of radiation oncology, The Second affiliated Hospital of Jilin University, Changchun 130041, China
| | - Tiejun Wang
- Department of radiation oncology, The Second affiliated Hospital of Jilin University, Changchun 130041, China
| | - Shunzi Jin
- NHC Key Laboratory of Radiobiology,Jilin University, Changchun 130021, China
| | - Zhongshan Liu
- Department of radiation oncology, The Second affiliated Hospital of Jilin University, Changchun 130041, China.
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27
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Jacobsen MC, Beriwal S, Dyer BA, Klopp AH, Lee SI, McGinnis GJ, Robbins JB, Rauch GM, Sadowski EA, Simiele SJ, Stafford RJ, Taunk NK, Yashar CM, Venkatesan AM. Contemporary image-guided cervical cancer brachytherapy: Consensus imaging recommendations from the Society of Abdominal Radiology and the American Brachytherapy Society. Brachytherapy 2022; 21:369-388. [PMID: 35725550 DOI: 10.1016/j.brachy.2022.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/15/2022] [Accepted: 04/24/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE To present recommendations for the use of imaging for evaluation and procedural guidance of brachytherapy for cervical cancer patients. METHODS An expert panel comprised of members of the Society of Abdominal Radiology Uterine and Ovarian Cancer Disease Focused Panel and the American Brachytherapy Society jointly assessed the existing literature and provide data-driven guidance on imaging protocol development, interpretation, and reporting. RESULTS Image-guidance during applicator implantation reduces rates of uterine perforation by the tandem. Postimplant images may be acquired with radiography, computed tomography (CT), or magnetic resonance imaging (MRI), and CT or MRI are preferred due to a decrease in severe complications. Pre-brachytherapy T2-weighted MRI may be used as a reference for contouring the high-risk clinical target volume (HR-CTV) when CT is used for treatment planning. Reference CT and MRI protocols are provided for reference. CONCLUSIONS Image-guided brachytherapy in locally advanced cervical cancer is essential for optimal patient management. Various imaging modalities, including orthogonal radiographs, ultrasound, computed tomography, and magnetic resonance imaging, remain integral to the successful execution of image-guided brachytherapy.
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Affiliation(s)
- Megan C Jacobsen
- The University of Texas MD Anderson Cancer Center, Department of Imaging Physics, Houston, TX
| | - Sushil Beriwal
- Allegheny Health Network, Department of Radiation Oncology, Pittsburgh, PA; Varian Medical Systems, Palo Alto, CA
| | - Brandon A Dyer
- Legacy Health, Department of Radiation Oncology, Portland, OR
| | - Ann H Klopp
- The University of Texas MD Anderson Cancer Center, Department of Radiation Oncology, Houston, TX
| | - Susanna I Lee
- Massachusetts General Hospital, Department of Radiology, Boston, MA
| | - Gwendolyn J McGinnis
- The University of Texas MD Anderson Cancer Center, Department of Radiation Oncology, Houston, TX
| | | | - Gaiane M Rauch
- The University of Texas MD Anderson Cancer Center, Department of Abdominal Imaging, Houston, TX
| | | | - Samantha J Simiele
- The University of Texas MD Anderson Cancer Center, Department of Radiation Physics, Houston, TX
| | - R Jason Stafford
- The University of Texas MD Anderson Cancer Center, Department of Imaging Physics, Houston, TX
| | - Neil K Taunk
- University of Pennsylvania, Department of Radiation Oncology, Philadelphia, PA
| | - Catheryn M Yashar
- University of California San Diego, Department of Radiation Oncology, San Diego, CA
| | - Aradhana M Venkatesan
- The University of Texas MD Anderson Cancer Center, Department of Abdominal Imaging, Houston, TX.
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Trachelectomy: How is it actually done? A review from FRANCOGYN group Titre: Trachélectomie: comment faire en pratique ? Revue de la littérature par le groupe FRANCOGYN. J Gynecol Obstet Hum Reprod 2022; 51:102407. [PMID: 35661829 DOI: 10.1016/j.jogoh.2022.102407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 11/22/2022]
Abstract
Because of the peak incidence of cervical cancer between the ages of 35 and 44 and the increasing age of first pregnancy, the issue of fertility preservation in cases of early-stage cervical cancer in women in this reproductive age category arises. Early-stage cervical cancer patients have a good prognosis and are surgically treated in cases of mildly aggressive human papillomavirus-related histological type (squamous cell carcinoma, adenocarcinoma), FIGO stage IA to IB1 (i.e., <2 cm), with shallow stromal invasion (<10 mm) and without the presence of lymph-vascular space invasion or lymph node or regional involvement. Under these conditions, conservative treatment by trachelectomy, which has recurrence-free and overall survival rates equivalent to that of hysterectomy, may be considered. After a complete pre-therapeutic assessment, including pelvic lymphadenectomy, to eliminate all contraindications to conservative treatment, a simple or enlarged trachelectomy can be chosen. According to some authors, the route of entry (vaginal, simple or robot-assisted laparoscopy, laparotomy) has no significant effect on survival or fertility, although the literature on the subject is limited. Trachelectomy offers good results in terms of fertility, with an estimated pregnancy rate of between 23% and 55% and a live birth rate of 70%. The significant reduction of the cervix associated with the procedure increases the risk of prematurity. However, this can be prevented by the use of a permanent cerclage. Close follow-up of these patients is essential for a minimum period of 5 years in order to detect any recurrence or postoperative complications.
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Reliable detection of lymph nodes in whole pelvic for radiotherapy. Biomed Signal Process Control 2022. [DOI: 10.1016/j.bspc.2022.103501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Pang SS, Murphy M, Markham MJ. Current Management of Locally Advanced and Metastatic Cervical Cancer in the United States. JCO Oncol Pract 2022; 18:417-422. [PMID: 35286157 DOI: 10.1200/op.21.00795] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Despite decreases in incidence in the twentieth century, cervical cancer continues to be a highly morbid disease in the United States. For those diagnosed with locally advanced disease, single-agent cisplatin-based chemotherapy concurrent with radiation remains the mainstay of treatment. For patients with metastatic, progressive, and recurrent disease, treatment typically consists of combination chemotherapy and incorporation of bevacizumab, and recent data show benefits with the addition of upfront immunotherapy in women whose cancer expresses programmed death ligand-1. The physical sequelae of locally advanced cervical cancer treatments stem largely from irradiation of the pelvis, and treatment of these is aimed at identifying reversible or treatable causes of symptoms and palliating those with irreversible causes. From a psychologic standpoint, patients with cervical cancer face the stigma of having a preventable cancer caused by a sexually transmitted infection and the ramifications of sexual dysfunction. Clinicians must invite honest dialogue to be able to address specific survivorship issues.
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Affiliation(s)
- Shiyi Sarah Pang
- Division of Hematology & Oncology, University of Florida College of Medicine, Gainesville, FL
| | - Martina Murphy
- Division of Hematology & Oncology, University of Florida College of Medicine, Gainesville, FL
| | - Merry J Markham
- Division of Hematology & Oncology, University of Florida College of Medicine, Gainesville, FL
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31
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Rockall AG, Barwick TD, Wilson W, Singh N, Bharwani N, Sohaib A, Nobbenhuis M, Warbey V, Miquel M, Koh DM, De Paepe KN, Martin-Hirsch P, Ghaem-Maghami S, Fotopoulou C, Stringfellow H, Sundar S, Manchanda R, Sahdev A, Hackshaw A, Cook GJ. Diagnostic Accuracy of FEC-PET/CT, FDG-PET/CT, and Diffusion-Weighted MRI in Detection of Nodal Metastases in Surgically Treated Endometrial and Cervical Carcinoma. Clin Cancer Res 2021; 27:6457-6466. [PMID: 34526364 PMCID: PMC9401562 DOI: 10.1158/1078-0432.ccr-21-1834] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/14/2021] [Accepted: 09/13/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE Preoperative nodal staging is important for planning treatment in cervical cancer and endometrial cancer, but remains challenging. We compare nodal staging accuracy of 18F-ethyl-choline-(FEC)-PET/CT, 18F-fluoro-deoxy-glucose-(FDG)-PET/CT, and diffusion-weighted-MRI (DW-MRI) with conventional morphologic MRI. EXPERIMENTAL DESIGN A prospective, multicenter observational study of diagnostic accuracy for nodal metastases was undertaken in 5 gyne-oncology centers. FEC-PET/CT, FDG-PET/CT, and DW-MRI were compared with nodal size and morphology on MRI. Reference standard was strictly correlated nodal histology. Eligibility included operable cervical cancer stage ≥ 1B1 or endometrial cancer (grade 3 any stage with myometrial invasion or grade 1-2 stage ≥ II). RESULTS Among 162 consenting participants, 136 underwent study DW-MRI and FDG-PET/CT and 60 underwent FEC-PET/CT. In 118 patients, 267 nodal regions were strictly correlated at histology (nodal positivity rate, 25%). Sensitivity per patient (n = 118) for nodal size, morphology, DW-MRI, FDG- and FEC-PET/CT was 40%*, 53%, 53%, 63%*, and 67% for all cases (*, P = 0.016); 10%, 10%, 20%, 30%, and 25% in cervical cancer (n = 40); 65%, 75%, 70%, 80% and 88% in endometrial cancer (n = 78). FDG-PET/CT outperformed nodal size (P = 0.006) and size ratio (P = 0.04) for per-region sensitivity. False positive rates were all <10%. CONCLUSIONS All imaging techniques had low sensitivity for detection of nodal metastases and cannot replace surgical nodal staging. The performance of FEC-PET/CT was not statistically different from other techniques that are more widely available. FDG-PET/CT had higher sensitivity than size in detecting nodal metastases. False positive rates were low across all methods. The low false positive rate demonstrated by FDG-PET/CT may be helpful in arbitration of challenging surgical planning decisions.
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Affiliation(s)
- Andrea G. Rockall
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,Department of Radiology, Imperial College Healthcare NHS Trust, London, United Kingdom.,Corresponding Author: Andrea G. Rockall, Division of Surgery and Cancer, Imperial College London, ICTEM Building, Hammersmith Campus, Du Cane Road, London W12 0NS, United Kingdom. E-mail:
| | - Tara D. Barwick
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,Department of Radiology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - William Wilson
- Cancer Research UK & UCL Cancer Trials Centre, University College London, United Kingdom
| | - Naveena Singh
- Department of Pathology, Barts Health NHS Trust, London, United Kingdom
| | - Nishat Bharwani
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,Department of Radiology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Aslam Sohaib
- Department of Radiology, Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
| | - Marielle Nobbenhuis
- Department of Gynaeoncology, Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
| | - Victoria Warbey
- Department of Radiology, Guys and St Thomas' NHS Trust, London, United Kingdom
| | - Marc Miquel
- Clinical Physics, Barts Health NHS Trust, London, United Kingdom.,William Harvey Research Institute, Digital Environment Research Institute, Queen Mary University of London, London, United Kingdom
| | - Dow-Mu Koh
- Department of Radiology, Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
| | - Katja N. De Paepe
- Department of Radiology, Royal Marsden Hospital NHS Foundation Trust, London, United Kingdom
| | - Pierre Martin-Hirsch
- Royal Preston Hospital, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, United Kingdom
| | - Sadaf Ghaem-Maghami
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,Department of Gynaeoncology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Christina Fotopoulou
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,Department of Gynaeoncology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Helen Stringfellow
- Royal Preston Hospital, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, United Kingdom
| | - Sudha Sundar
- Pan Birmingham Gynaecological Cancer Centre, City Hospital and Insitute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Ranjit Manchanda
- Wolfson Institute of Preventive Medicine QMUL, London, United Kingdom.,Department of Gynaecological Oncology, Barts Health NHS Trust, London, United Kingdom.,Department of Health Services Research, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Anju Sahdev
- Department of Radiology, St Bartholomews Hospital, Barts Health NHS Trust, London, United Kingdom
| | - Allan Hackshaw
- Cancer Research UK & UCL Cancer Trials Centre, University College London, United Kingdom
| | - Gary J. Cook
- Cancer Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
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Stukan M, Buderath P, Szulczyński B, Gębicki J, Kimmig R. Accuracy of Ultrasonography and Magnetic Resonance Imaging for Preoperative Staging of Cervical Cancer-Analysis of Patients from the Prospective Study on Total Mesometrial Resection. Diagnostics (Basel) 2021; 11:diagnostics11101749. [PMID: 34679447 PMCID: PMC8534714 DOI: 10.3390/diagnostics11101749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/12/2021] [Accepted: 09/19/2021] [Indexed: 11/18/2022] Open
Abstract
We aimed to evaluate the accuracy of ultrasonography with gynecologic examination performed by a gynecological oncologist and magnetic resonance imaging (MRI) interpreted by a radiologist for the local and regional staging of patients with early-stage cervical cancer. The study was a single-site sub-analysis of the multi-institutional prospective, observational Total Mesometrial Resection (TMMR) Register Study, which included all consecutive study patients from Gdynia Oncology Center. Imaging results were compared with pathology findings. A total of 58 consecutive patients were enrolled, and 50 underwent both ultrasonography and MRI. The accuracy of tumor detection and measurement errors was comparable across ultrasonography and MRI. There were no significant differences between ultrasonography and MRI in the accuracy of detecting parametrial involvement (92%, confidence interval (CI) 84–100% vs. 76%, CI 64–88%, p = 0.3), uterine corpus infiltration (94%, CI 87–100% vs. 86%, CI 76–96%, p = 0.3), and vaginal fornix involvement (96%, CI 91–100% vs. 76%, CI 64–88%, p = 0.3). The importance of uterine corpus involvement for the first-line lymph node metastases was presented in few cases. The accuracy of ultrasonography was higher than MRI for correctly predicting tumor stage: International Federation of Gynecology and Obstetrics (FIGO)–2018: 69%, CI 57–81% vs. 42%, CI 28–56%, p = 0.002, T (from TNM system): 79%, CI 69–90% vs. 52%, CI 38–66%, p = 0.0005, and ontogenetic tumor staging: 88%, CI 80–96% vs. 70%, CI 57–83%, p = 0.005. For patients with cervical cancer who are eligible for TMMR and therapeutic lymphadenectomy, the accuracy of ultrasonography performed by gynecological oncologists is not inferior to that of MRI interpreted by a radiologist for assessing specific local parameters, and is more accurate for local staging of the disease and is thus more clinically useful for planning adequate surgical treatment.
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Affiliation(s)
- Maciej Stukan
- Department of Gynecologic Oncology, Gdynia Oncology Center, Pomeranian Hospitals, ul. Powstania Styczniowego 1, 81519 Gdynia, Poland
- Division of Propedeutics of Oncology, Medical University of Gdańsk, ul. Powstania Styczniowego 9B, 81519 Gdynia, Poland
- Correspondence: or ; Tel.: +48-58-7260508
| | - Paul Buderath
- West German Cancer Center, Department for Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147 Essen, Germany; (P.B.); (R.K.)
| | - Bartosz Szulczyński
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology, ul. Narutowicza 11/12, 80233 Gdańsk, Poland; (B.S.); (J.G.)
| | - Jacek Gębicki
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdańsk University of Technology, ul. Narutowicza 11/12, 80233 Gdańsk, Poland; (B.S.); (J.G.)
| | - Rainer Kimmig
- West German Cancer Center, Department for Gynecology and Obstetrics, University Hospital Essen, University of Duisburg-Essen, Hufelandstraße 55, 45147 Essen, Germany; (P.B.); (R.K.)
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Chen X, Xu P, Zhang H, Su X, Guo L, Zhou X, Wang J, Huang P, Zhang Q, Sun R. EGFR and ERK activation resists flavonoid quercetin-induced anticancer activities in human cervical cancer cells in vitro. Oncol Lett 2021; 22:754. [PMID: 34539858 PMCID: PMC8436358 DOI: 10.3892/ol.2021.13015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023] Open
Abstract
In the present study, due to the complex and numerous targets of Sarcandrae Herb (also known as Zhong Jie Feng), network pharmacology was performed to analyze its therapeutic effect on 2 cervical cancer cell lines, which could assist with the development of novel therapies. The results suggested that the natural flavonoid quercetin (Que), the effective antitumor ingredient in SH, which is widely present in a variety of plants, may depend on the target, EGFR. Previous studies have shown that EGFR serves a crucial role in the occurrence and development of cervical cancer, but its downstream molecules and regulatory mechanisms remain unknown. The anti-cervical cancer cell properties of Que, which are present in ubiquitous plants, were examined in vitro to identify the association between Que and its underlying pathway using MTT assays, flow cytometry, western blot analysis and Transwell assays. It was found that Que reduced cervical cancer cell viability, promoted G2/M phase cell cycle arrest and cell apoptosis, as well as inhibited cell migration and invasion. The Tyr1068 phosphorylation site of EGFR and the corresponding ERK target were also examined and the 2 kinases were markedly activated by Que. Furthermore, the EGFR inhibitor, afatinib and the ERK inhibitor, U0126 blocked the increase of EGFR and ERK phosphorylation, and resulted in a notable enhancement of apoptosis and cell cycle arrest. Therefore, to the best of our knowledge, the current results provided the first evidence that EGFR and ERK activation induced by Que could resist Que-induced anticancer activities. On this basis, the present study determined the role of EGFR and the underlying signaling pathways involved in the anti-cervical cancer malignant behavior induced by Que and identified the negative regulatory association.
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Affiliation(s)
- Xin Chen
- Molecular Biology Laboratory, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Pengli Xu
- Collaborative Innovation Center, Henan University of Chinese Medicine, Zhengzhou, Henan 450000, P.R. China
| | - Huijun Zhang
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, Shanghai 200030, P.R. China
| | - Xiaosan Su
- Research and Experiment Center, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan 650500, P.R. China
| | - Lihua Guo
- Department of Oncology, Yunnan Provincial Hospital of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Xuhong Zhou
- Research and Experiment Center, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan 650500, P.R. China
| | - Junliang Wang
- Research and Experiment Center, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan 650500, P.R. China
| | - Peng Huang
- Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Tokyo 163-8001, Japan
| | - Qingzhi Zhang
- Molecular Biology Laboratory, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, P.R. China
| | - Ruifen Sun
- Research and Experiment Center, Yunnan University of Chinese Traditional Medicine, Kunming, Yunnan 650500, P.R. China
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Jang W, Song JS. [Uterine Cervical Cancer: Emphasis on Revised FIGO Staging 2018 and MRI]. TAEHAN YONGSANG UIHAKHOE CHI 2021; 82:1083-1102. [PMID: 36238389 PMCID: PMC9432380 DOI: 10.3348/jksr.2021.0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/05/2021] [Accepted: 09/17/2021] [Indexed: 11/15/2022]
Abstract
Uterine cervical cancer is a common gynecological cancer prevalent in Korea. Early detection, precise diagnosis, and appropriate treatment can affect its prognosis. Imaging approaches play an important role in staging, treatment planning, and follow-up. MRI specifically provides the advantage of assessing tumor size and disease severity with high soft tissue contrast. The revised version of the International Federation of Gynecology and Obstetrics (FIGO) staging system has been introduced in 2018, which incorporates subdivided primary tumor size and lymph node metastasis. In this review, the staging of uterine cervical cancer based on previous studies, the recently revised FIGO staging, and various post-treatment images are primarily described using MRI.
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Machine Learning Models to Predict Survival Outcomes According to the Surgical Approach of Primary Radical Hysterectomy in Patients with Early Cervical Cancer. Cancers (Basel) 2021; 13:cancers13153709. [PMID: 34359610 PMCID: PMC8345043 DOI: 10.3390/cancers13153709] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 01/23/2023] Open
Abstract
Simple Summary An increased risk of relapse and death from minimally invasive radical hysterectomy has been reported in some patients with early cervical cancer. Thus, the development of an intuitive and precise decision-aid tool, which estimates recurrence and mortality rates by surgical approach, is necessary. To develop models predicting survival outcomes according to the surgical approach, we collected clinicopathologic and survival data of patients with 2009 FIGO stage IB cervical cancer who underwent a radical hysterectomy. Using only variables that could be obtained preoperatively, we developed various models predicting the probability of 5-year progression-free survival and overall survival. Among them, hybrid ensemble models, combined with logistic regression and multiple machine learning models, achieved the best predictive performance. The developed models are expected to help physicians’ and patients’ decision making related to the surgical approach for primary radical hysterectomy. Abstract We purposed to develop machine learning models predicting survival outcomes according to the surgical approach for radical hysterectomy (RH) in early cervical cancer. In total, 1056 patients with 2009 FIGO stage IB cervical cancer who underwent primary type C RH by either open or laparoscopic surgery were included in this multicenter retrospective study. The whole dataset consisting of patients’ clinicopathologic data was split into training and test sets with a 4:1 ratio. Using the training set, we developed models predicting the probability of 5-year progression-free survival (PFS) and overall survival (OS) with tenfold cross validation. The developed models were validated in the test set. In terms of predictive performance, we measured the area under the receiver operating characteristic curve (AUC) values. The logistic regression models comprised of preoperative variables yielded AUCs of 0.679 and 0.715 for predicting 5-year PFS and OS rates, respectively. Combining both logistic regression and multiple machine learning models, we constructed hybrid ensemble models, and these models showed much improved predictive performance, with 0.741 and 0.759 AUCs for predicting 5-year PFS and OS rates, respectively. We successfully developed models predicting disease recurrence and mortality after primary RH in patients with early cervical cancer. As the predicted value is calculated based on the preoperative factors, such as the surgical approach, these ensemble models would be useful for making decisions when choosing between open or laparoscopic RH.
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Olthof EP, van der Aa MA, Adam JA, Stalpers LJA, Wenzel HHB, van der Velden J, Mom CH. The role of lymph nodes in cervical cancer: incidence and identification of lymph node metastases-a literature review. Int J Clin Oncol 2021; 26:1600-1610. [PMID: 34241726 DOI: 10.1007/s10147-021-01980-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/24/2021] [Indexed: 01/15/2023]
Abstract
Correct identification of patients with lymph node metastasis from cervical cancer prior to treatment is of great importance, because it allows more tailored therapy. Patients may be spared unnecessary surgery or extended field radiotherapy if the nodal status can be predicted correctly. This review captures the existing knowledge on the identification of lymph node metastases in cervical cancer. The risk of nodal metastases increases per 2009 FIGO stage, with incidences in the pelvic region ranging from 2% (stage IA2) to 14-36% (IB), 38-51% (IIA) and 47% (IIB); and in the para-aortic region ranging from 2 to 5% (stage IB), 10-20% (IIA), 9% (IIB), 13-30% (III) and 50% (IV). In addition, age, tumor size, lymph vascular space invasion, parametrial invasion, depth of stromal invasion, histological type, and histological grade are reported to be independent prognostic factors for the risk of nodal metastases. Furthermore, biomarkers can contribute to predict a patient's nodal status, of which the squamous cell carcinoma antigen (SCC-Ag) is currently the most widely used in squamous cell cervical cancer. Still, pre-treatment lymph node assessment is primarily performed by imaging, of which diffusion-weighted magnetic resonance imaging has the highest sensitivity and 2-deoxy-2-[18F]fluoro-D-glucose positron emission computed tomography the highest specificity. Imaging results can be combined with clinical parameters in nomograms to increase the accuracy of predicting positives nodes. Despite all the progress regarding pre-treatment prediction of lymph node metastases in cervical cancer in recent years, prediction rates are not robust enough to safely abandon surgical staging of the pelvic or para-aortic region yet.
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Affiliation(s)
- Ester P Olthof
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands.
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Postbus 19079, 3501 DB, Utrecht, The Netherlands.
| | - Maaike A van der Aa
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands
| | - Judit A Adam
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Lukas J A Stalpers
- Department of Radiation Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Hans H B Wenzel
- Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Godebaldkwartier 419, 3511 DT, Utrecht, The Netherlands
| | - Jacobus van der Velden
- Department of Gynaecological Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Constantijne H Mom
- Department of Gynaecological Oncology, Amsterdam University Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
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Adam JA, Loft A, Chargari C, Delgado Bolton RC, Kidd E, Schöder H, Veit-Haibach P, Vogel WV. EANM/SNMMI practice guideline for [ 18F]FDG PET/CT external beam radiotherapy treatment planning in uterine cervical cancer v1.0. Eur J Nucl Med Mol Imaging 2021; 48:1188-1199. [PMID: 33275178 PMCID: PMC8041686 DOI: 10.1007/s00259-020-05112-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 11/08/2020] [Indexed: 01/12/2023]
Abstract
PURPOSE The aim of this EANM / SNMMI Practice Guideline with ESTRO endorsement is to provide general information and specific considerations about [18F]FDG PET/CT in advanced uterine cervical cancer for external beam radiotherapy planning with emphasis on staging and target definition, mostly in FIGO stages IB3-IVA and IVB, treated with curative intention. METHODS Guidelines from related fields, relevant literature and leading experts have been consulted during the development of this guideline. As this field is rapidly evolving, this guideline cannot be seen as definitive, nor is it a summary of all existing protocols. Local variations should be taken into consideration when applying this guideline. CONCLUSION The background, common clinical indications, qualifications and responsibilities of personnel, procedure / specifications of the examination, documentation / reporting and equipment specifications, quality control and radiation safety in imaging is discussed with an emphasis on the multidisciplinary approach.
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Affiliation(s)
- Judit A Adam
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Cyrus Chargari
- Brachytherapy Unit, Gustave Roussy, Villejuif, France
- Institut de Recherche Biomédicale des Armées, Bretigny-sur-Orge, France
- French Military Health Academy, Ecole du Val-de-Grâce, Paris, France
| | - Roberto C Delgado Bolton
- Department of Diagnostic Imaging (Radiology) and Nuclear Medicine, San Pedro University Hospital and Centre for Biomedical Research of la Rioja (CIBIR), Logroño, La Rioja, Spain
| | - Elisabeth Kidd
- Department of Radiation Oncology, Stanford Cancer Center, Stanford, CA, USA
| | - Heiko Schöder
- Department of Radiology, Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Wouter V Vogel
- Department of Nuclear Medicine and Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands
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Diagnostic Value of 18F-FDG PET/MRI for Revised 2018 FIGO Staging in Patients with Cervical Cancer. Diagnostics (Basel) 2021; 11:diagnostics11020202. [PMID: 33573078 PMCID: PMC7912681 DOI: 10.3390/diagnostics11020202] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 01/10/2023] Open
Abstract
Purpose: To evaluate the diagnostic potential of PET/MRI with 18F-fluorodeoxyglucose (18F-FDG) in cervical cancer based on the revised 2018 International Federation of Gynecology and Obstetrics (FIGO) staging system. Materials and Methods: Seventy-two patients with biopsy-proven primary cervical cancer underwent pretreatment 18F-FDG PET/MRI, CT, and pelvic MRI. The diagnostic performance of 18F-FDG PET/MRI and MRI for assessing extent of the primary tumor and 18F-FDG PET/MRI and CT for assessing nodal and distant metastases was evaluated by two experienced readers. Histopathological and follow-up imaging results were used as the gold standard. McNemar test was employed for statistical analysis. Results: Accuracy for the invasion of vagina, parametrium, side wall, and adjacent organs was 97.2%, 93.1%, 97.2%, and 100% for 18F-FDG PET/MRI; and 97.2%, 91.7%, 97.2%, and 100% for pelvic MRI, respectively (p > 0.05). Patient-based accuracy for metastasis to pelvic and paraaortic lymph nodes and distant organs was 95.8%, 98.6%, and 100% for 18F-FDG PET/MRI; and 83.3%, 95.8%, and 97.2% for CT, respectively; metastasis to pelvic lymph nodes was statistically significant (p < 0.01). Lesion-based sensitivity, specificity, and accuracy for lymph nodes were 83.3%, 95.9%, and 94.8% for 18F-FDG PET/MRI; and 29.2%, 98.9% and 93.1% for CT, respectively; sensitivity was statistically significant (p < 0.001). After excluding patients diagnosed by conization, accuracy for revised FIGO staging 2018 was significantly better for 18F-FDG PET/MRI (82.1%) than for CT and MRI (60.7%) (p < 0.01). Conclusions: 18F-FDG PET/MRI offers higher diagnostic value for revised 2018 FIGO staging, suggesting that 18F-FDG PET/MRI might provide an optimal diagnostic strategy for preoperative staging.
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Adam JA, van Diepen PR, Mom CH, Stoker J, van Eck-Smit BLF, Bipat S. [ 18F]FDG-PET or PET/CT in the evaluation of pelvic and para-aortic lymph nodes in patients with locally advanced cervical cancer: A systematic review of the literature. Gynecol Oncol 2020; 159:588-596. [PMID: 32921477 DOI: 10.1016/j.ygyno.2020.08.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 08/17/2020] [Indexed: 01/12/2023]
Abstract
PURPOSE Imaging is essential in detecting lymph node metastases for radiotherapy treatment planning in locally advanced cervical cancer (LACC). There are not many data on the performance of [18F]FDG-PET(CT) in showing lymph node metastases in LACC. We pooled sensitivity and specificity of [18F]FDG-PET(CT) for detecting pelvic and/or para-aortic lymph node metastases in patients with LACC. Also, the positive and negative posttest probabilities at high and low levels of prevalence were determined. METHODS MEDLINE and EMBASE searches were performed and quality characteristics assessed. Logit-sensitivity and logit-specificity estimates with corresponding standard errors were calculated. Summary estimates of sensitivity and specificity with corresponding 95% confidence intervals (CIs) were calculated by anti-logit transformation. Positive and negative likelihood ratios (LRs) were calculated from the mean logit-sensitivity and mean logit-specificity and the corresponding standard errors. The posttest probabilities were determined by Bayesian approach. RESULTS Twelve studies were included with a total of 778 patients aged 10-85 years. For pelvic nodes, summary estimates of sensitivity, specificity, LR+ and LR- were: 0.88 (95%CI: 0.40-0.99), 0.93 (95%CI: 0.85-0.97), 11.90 (95%CI: 5.32-26.62) and 0.13 (95%CI: 0.01-1.08). At the lowest prevalence of 0.15 the positive predictive value (PPV) and negative predictive value (NPV) were 0.68 and 0.98, at the highest prevalence of 0.65, 0.96 and 0.81. For the para-aortic nodes, the summary estimates of sensitivity, specificity LR+ and LR- were: 0.40 (95%CI: 0.18-0.66), 0.93 (95%CI: 0.91-0.95), 6.08 (95%CI: 2.90-12.78) and 0.64 (95%CI: 0.42-0.99), respectively. At the lowest prevalence of 0.17 the PPV and NPV were 0.55 and 0.88, at the highest prevalence of 0.50, 0.86 and 0.61. CONCLUSION The PPV and NPV of [18F]FDG-PET(CT) showing lymph node metastases in patients with LACC improves with higher prevalence. Prevalence and predictive values should be taken into account when determining therapeutic strategies based on [18F]FDG-PET(CT).
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Affiliation(s)
- Judit A Adam
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands.
| | - Pascal R van Diepen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Constantijne H Mom
- Department of Gynecologic Oncology, Amsterdam UMC, Free University Amsterdam, De Boelelaan 1117, 1081, HV, Amsterdam, the Netherlands
| | - Jaap Stoker
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Berthe L F van Eck-Smit
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
| | - Shandra Bipat
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105, AZ, Amsterdam, the Netherlands
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The role and contribution of treatment and imaging modalities in global cervical cancer management: survival estimates from a simulation-based analysis. Lancet Oncol 2020; 21:1089-1098. [PMID: 32758463 DOI: 10.1016/s1470-2045(20)30316-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cervical cancer is the fourth most common cancer among women worldwide, causing more than 300 000 deaths globally each year. In addition to screening and prevention, effective cancer treatment is needed to reduce cervical cancer mortality. We discuss the role of imaging in cervical cancer management and estimate the potential survival effect of scaling up imaging in several different contexts. METHODS Using a previously developed microsimulation model of global cancer survival, we estimated stage-specific cervical cancer 5-year net survival in 200 countries and territories. We evaluated the potential survival effect of scaling up treatment (chemotherapy, surgery, radiotherapy, and targeted therapy), and imaging modalities (ultrasound, x-ray, CT, MRI, PET, and single photon emission CT [SPECT]) to the mean level of high-income countries, both individually and in combination. FINDINGS We estimate global cervical cancer 5-year net survival as 42·1% (95% uncertainty interval [UI] 33·8-48·5). Among individual imaging modalities, expanding MRI would yield the largest 5-year survival gains globally (data are absolute percentage point increase in survival 0·6, 95% UI 0·1-2·1), scaling up ultrasound would yield the largest gains in low-income countries (0·5, 0·0-3·7), expanding CT and x-ray would have the greatest effect in Latin America (0·8, 0·0-3·4) and Oceania (0·4, 0·0-3·2), and expanding PET would yield the largest gains in high-income countries (0·2, 0·0-0·8). Scaling up SPECT did not show major changes in any region. Among individual treatment modalities, scaling up radiotherapy would yield the largest absolute percentage point gains in low-income countries (5·2, 0·3-13·5), and expanding surgery would have the largest effect in lower-middle-income countries (7·4, 0·3-21·1) and upper-middle-income countries (0·8, 0·0-2·9). Estimated survival gains in high-income countries were very modest. However, the gains from expanding any single treatment or imaging modality individually were small across all income levels and geographical settings. Scaling up all treatment modalities could improve global 5-year net survival to 52·4% (95% UI 44·6-62·0). In addition to expanding treatment, improving quality of care could raise survival to 57·5% (51·2-63·5), and the cumulative effect of scaling up all imaging modalities together with expanded treatment and quality of care could improve 5-year net survival for cervical cancer to 62·5% (57·7-67·8). INTERPRETATION Comprehensive scale-up of treatment, imaging, and quality of care could substantially improve global cervical cancer 5-year net survival, with quality of care and imaging improvements each contributing about 25% of the total potential gains. These findings suggest that a narrow focus on the availability of treatment modalities could forgo substantial survival gains. Investments in imaging equipment, personnel, and quality of care efforts will also be needed to successfully scale up cervical cancer treatment worldwide. FUNDING Harvard T H Chan School of Public Health and National Cancer Institute.
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