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Montrazi ET, Sasson K, Agemy L, Scherz A, Frydman L. Molecular imaging of tumor metabolism: Insight from pyruvate- and glucose-based deuterium MRI studies. SCIENCE ADVANCES 2024; 10:eadm8600. [PMID: 38478615 PMCID: PMC10936946 DOI: 10.1126/sciadv.adm8600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/07/2024] [Indexed: 03/17/2024]
Abstract
Cancer diagnosis by metabolic MRI proposes to follow the fate of glycolytic precursors such as pyruvate or glucose, and their in vivo conversion into lactate. This study compares the 2H MRI outlooks afforded by these metabolites when targeting a pancreatic cancer model. Exogenously injected [3,3',3″-2H3]-pyruvate was visible only briefly; it generated a deuterated lactate signal throughout the body that faded after ~5 min, showing a minor concentration bias at the rims of the tumors. [6,6'-2H2]-glucose by contrast originated a lactate signal that localized clearly within the tumors, persisting for over an hour. Investigations alternating deuterated and nondeuterated glucose injections revealed correlations between the lactate generation and the glucose available at the tumor, evidencing a continuous and avid glucose consumption generating well-localized lactate signatures as driven by the Warburg effect. This is by contrast to the transient and more promiscuous pyruvate-to-lactate transformation, which seemed subject to transporter and kinetics effects. The consequences of these observations within metabolic MRI are briefly discussed.
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Affiliation(s)
- Elton T Montrazi
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel
| | - Keren Sasson
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Lilach Agemy
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Avigdor Scherz
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Lucio Frydman
- Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel
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2
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Mayo ZS, Billena C, Suh JH, Lo SS, Chao ST. The dilemma of radiation necrosis from diagnosis to treatment in the management of brain metastases. Neuro Oncol 2024; 26:S56-S65. [PMID: 38437665 PMCID: PMC10911797 DOI: 10.1093/neuonc/noad188] [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: 03/06/2024] Open
Abstract
Radiation therapy with stereotactic radiosurgery (SRS) or whole brain radiation therapy is a mainstay of treatment for patients with brain metastases. The use of SRS in the management of brain metastases is becoming increasingly common and provides excellent local control. Cerebral radiation necrosis (RN) is a late complication of radiation treatment that can be seen months to years following treatment and is often indistinguishable from tumor progression on conventional imaging. In this review article, we explore risk factors associated with the development of radiation necrosis, advanced imaging modalities used to aid in diagnosis, and potential treatment strategies to manage side effects.
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Affiliation(s)
- Zachary S Mayo
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Cole Billena
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - John H Suh
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Seattle, Washington, USA
| | - Samuel T Chao
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio, USA
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3
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Mayo ZS, Halima A, Broughman JR, Smile TD, Tom MC, Murphy ES, Suh JH, Lo SS, Barnett GH, Wu G, Johnson S, Chao ST. Radiation necrosis or tumor progression? A review of the radiographic modalities used in the diagnosis of cerebral radiation necrosis. J Neurooncol 2023; 161:23-31. [PMID: 36633800 DOI: 10.1007/s11060-022-04225-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023]
Abstract
PURPOSE Cerebral radiation necrosis is a complication of radiation therapy that can be seen months to years following radiation treatment. Differentiating radiation necrosis from tumor progression on standard magnetic resonance imaging (MRI) is often difficult and advanced imaging techniques may be needed to make an accurate diagnosis. The purpose of this article is to review the imaging modalities used in differentiating radiation necrosis from tumor progression following radiation therapy for brain metastases. METHODS We performed a review of the literature addressing the radiographic modalities used in the diagnosis of radiation necrosis. RESULTS Differentiating radiation necrosis from tumor progression remains a diagnostic challenge and advanced imaging modalities are often required to make a definitive diagnosis. If diagnostic uncertainty remains following conventional imaging, a multi-modality diagnostic approach with perfusion MRI, magnetic resonance spectroscopy (MRS), positron emission tomography (PET), single photon emission spectroscopy (SPECT), and radiomics may be used to improve diagnosis. CONCLUSION Several imaging modalities exist to aid in the diagnosis of radiation necrosis. Future studies developing advanced imaging techniques are needed.
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Affiliation(s)
- Zachary S Mayo
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA
| | - Ahmed Halima
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA
| | - James R Broughman
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA
| | - Timothy D Smile
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA
| | - Martin C Tom
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Erin S Murphy
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - John H Suh
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA.,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA
| | - Simon S Lo
- Department of Radiation Oncology, University of Washington, Seattle, WA, USA
| | - Gene H Barnett
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA.,Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA
| | - Guiyun Wu
- Department of Radiology, Cleveland Clinic, Cleveland, OH, USA
| | - Scott Johnson
- Department of Radiology, Cleveland Clinic, Cleveland, OH, USA
| | - Samuel T Chao
- Department of Radiation Oncology, Cleveland Clinic, 9500 Euclid Ave CA-50, Cleveland, OH, 44195, USA. .,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA.
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5
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Abstract
Hematologic malignancies are a broad category of cancers arising from the lymphoid and myeloid cell lines. The 2016 World Health Organization classification system incorporated molecular markers as part of the diagnostic criteria and includes more than 100 subtypes. This article focuses on the subtypes for which imaging with positron emission tomography/computed tomography (PET/CT) has become an integral component of the patient's evaluation, that is, lymphoma and multiple myeloma. Leukemia and histiocytic and dendritic cell neoplasms are also discussed as these indications for PET/CT are less common, but increasingly seen in clinic.
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6
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Sadaghiani MS, Sheikhbahaei S, Rowe SP, Pomper MG, Solnes LB. Cellular and Molecular Imaging with SPECT and PET in Brain Tumors. Radiol Clin North Am 2021; 59:363-375. [PMID: 33926683 DOI: 10.1016/j.rcl.2021.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This review highlights the 2 major molecular imaging modalities that are used in clinics, namely single-photon emission computed tomography (SPECT) and positron emission tomography (PET), and their added value in management of patients with brain tumors. There are a variety of SPECT and PET radiotracers that can allow imaging of different molecular processes. Those radiotracers target specific molecular features of tumors, resulting in improved specificity of these agents. Potential applications include staging of brain tumors and evaluating post-therapeutic changes.
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Affiliation(s)
- Mohammad S Sadaghiani
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, JHOC 3150, Baltimore, MD 21287, USA
| | - Sara Sheikhbahaei
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, JHOC 3150, Baltimore, MD 21287, USA
| | - Steven P Rowe
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, JHOC 3150, Baltimore, MD 21287, USA
| | - Martin G Pomper
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, JHOC 3150, Baltimore, MD 21287, USA
| | - Lilja B Solnes
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, JHOC 3150, Baltimore, MD 21287, USA.
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7
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Strauss SB, Meng A, Ebani EJ, Chiang GC. Imaging Glioblastoma Posttreatment: Progression, Pseudoprogression, Pseudoresponse, Radiation Necrosis. Neuroimaging Clin N Am 2021; 31:103-120. [PMID: 33220823 DOI: 10.1016/j.nic.2020.09.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Radiographic monitoring of posttreatment glioblastoma is important for clinical trials and determining next steps in management. Evaluation for tumor progression is confounded by the presence of treatment-related radiographic changes, making a definitive determination less straight-forward. The purpose of this article was to describe imaging tools available for assessing treatment response in glioblastoma, as well as to highlight the definitions, pathophysiology, and imaging features typical of true progression, pseudoprogression, pseudoresponse, and radiation necrosis.
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Affiliation(s)
- Sara B Strauss
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Alicia Meng
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Edward J Ebani
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Gloria C Chiang
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA.
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8
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Wu VWC, Tam SY. Radiation induced temporal lobe necrosis in nasopharyngeal cancer patients after radical external beam radiotherapy. Radiat Oncol 2020; 15:112. [PMID: 32414378 PMCID: PMC7227265 DOI: 10.1186/s13014-020-01560-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/03/2020] [Indexed: 12/24/2022] Open
Abstract
Radiation-induced temporal lobe necrosis (TLN) is one of the late post-radiotherapy complications in nasopharyngeal cancer (NPC) patients. Since NPC is common to have skull base infiltration, irradiation of the temporal lobes is inevitable despite the use of the more advanced intensity-modulated radiotherapy (IMRT). Moreover, the diagnosis and treatment of TLN remain challenging. In this review, we discuss the diagnosis of TLN with conventional and advanced imaging modalities, onset and predictive parameters of TLN development, the impact of IMRT on TLN in terms of incidence and dosimetric analyzes, and the recent advancements in the treatment of TLN.
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Affiliation(s)
- Vincent W C Wu
- Department of Health Technology & Informatics, Hong Kong Polytechnic University, Hung Hom, Hong Kong.
| | - Shing-Yau Tam
- Department of Health Technology & Informatics, Hong Kong Polytechnic University, Hung Hom, Hong Kong
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9
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Benveniste MF, Gomez D, Carter BW, Betancourt Cuellar SL, Shroff GS, Benveniste APA, Odisio EG, Marom EM. Recognizing Radiation Therapy-related Complications in the Chest. Radiographics 2020; 39:344-366. [PMID: 30844346 DOI: 10.1148/rg.2019180061] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Radiation therapy is one of the cornerstones for the treatment of thoracic malignancies. Although advances in radiation therapy technology have improved the delivery of radiation considerably, adverse effects are still common. Postirradiation changes affect the organ or tissue treated and the neighboring structures. Advances in external-beam radiation delivery techniques and how these techniques affect the expected thoracic radiation-induced changes are described. In addition, how to distinguish these expected changes from complications such as infection and radiation-induced malignancy, and identify treatment failure, that is, local tumor recurrence, is reviewed. ©RSNA, 2019.
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Affiliation(s)
- Marcelo F Benveniste
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Daniel Gomez
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Brett W Carter
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Sonia L Betancourt Cuellar
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Girish S Shroff
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Ana Paula A Benveniste
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Erika G Odisio
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
| | - Edith M Marom
- From the Departments of Diagnostic Radiology (M.F.B., B.W.C., S.L.B.C., G.S.S., E.G.O.) and Radiation Oncology (D.G.), University of Texas, MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1478, Houston, TX 77030; Department of Diagnostic Radiology, Baylor College of Medicine, Houston, Tex (A.P.A.B.); and Department of Diagnostic Imaging, Chaim Sheba Medical Center, Ramat Gan, Israel, affiliated with Tel Aviv University, Tel Aviv, Israel (E.M.M.)
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10
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The need of a clinically oriented reporting of 18F-FDG PET/CT in non-small cell lung cancer (NSCLC). Clin Transl Imaging 2020. [DOI: 10.1007/s40336-019-00354-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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SPECT and PET of the Brain. Clin Nucl Med 2020. [DOI: 10.1007/978-3-030-39457-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Shriwas P, Chen X, Kinghorn AD, Ren Y. Plant-derived glucose transport inhibitors with potential antitumor activity. Phytother Res 2019; 34:1027-1040. [PMID: 31823431 DOI: 10.1002/ptr.6587] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/20/2019] [Accepted: 11/23/2019] [Indexed: 12/15/2022]
Abstract
Glucose, a key nutrient utilized by human cells to provide cellular energy and a carbon source for biomass synthesis, is internalized in cells via glucose transporters that regulate glucose homeostasis throughout the human body. Glucose transporters have been used as important targets for the discovery of new drugs to treat cancer, diabetes, and heart disease, owing to their abnormal expression during these disease conditions. Thus far, several glucose transport inhibitors have been used in clinical trials, and increasing numbers of natural products have been characterized as potential anticancer agents targeting glucose transport. The present review focuses on natural product glucose transport inhibitors of plant origin, including alkaloids, flavonoids and other phenolic compounds, and isoprenoids, with their potential antitumor properties also discussed.
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Affiliation(s)
- Pratik Shriwas
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio.,Department of Biological Sciences, Ohio University, Athens, Ohio.,Edison Biotechnology Institute, Ohio University, Athens, Ohio.,Molecular and Cellular Biology Program, Ohio University, Athens, Ohio
| | - Xiaozhuo Chen
- Department of Biological Sciences, Ohio University, Athens, Ohio.,Edison Biotechnology Institute, Ohio University, Athens, Ohio.,Molecular and Cellular Biology Program, Ohio University, Athens, Ohio.,Department of Biomedical Sciences, Ohio University, Athens, Ohio
| | - A Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Yulin Ren
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio
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Verhoeven J, Baguet T, Piron S, Pauwelyn G, Bouckaert C, Descamps B, Raedt R, Vanhove C, De Vos F, Goethals I. 2-[ 18F]FELP, a novel LAT1-specific PET tracer, for the discrimination between glioblastoma, radiation necrosis and inflammation. Nucl Med Biol 2019; 82-83:9-16. [PMID: 31841816 DOI: 10.1016/j.nucmedbio.2019.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Considering the need for rapid change of treatment in recurrent glioblastoma (GB), it is of utmost importance to characterize PET radiopharmaceuticals that allow early discrimination of tumor from therapy-related effects. In this study, we examined the value of 2-[18F]FELP as a LAT1 tumor-specific PET tracer in comparison with [18F]FDG and [18F]FET in a combined orthotopic rat radiation necrosis and glioblastoma model. A second experiment compared 2-[18F]FELP to [18F]FDG in a mouse glioblastoma - inflammation model. METHODS Using the small animal radiation research platform (SARRP), radiation necrosis (RN) was induced in the left frontal lobe of the rat brain. When radiation-induced changes were visible on MRI, F98 rat glioblastoma cells were stereotactically inoculated in the contralateral right frontal lobe. When tumor growth was confirmed on MRI, 2-[18F]FELP, [18F]FET and [18F]FDG PET scans were acquired on three consecutive days. In an inflammation experiment, mice were inoculated in the left thigh with U87 human glioblastoma cells. After heterotopic tumor growth was confirmed macroscopically, inflammation was induced by injection of turpentine subcutaneously in the right thigh. Subsequently, 2-[18F]FELP and [18F]FDG scans were acquired on two consecutive days. RESULTS The in vivo PET images demonstrated that 2-[18F]FELP could differentiate glioblastoma and radiation necrosis using SUVmean (p = 0.0016) and LNRmean (p = 0.009), while [18F]FET was only able to differentiate both lesions by means of the SUVmean. (p = 0.047) Delayed [18F]FDGlate PET (4 h postinjection) was also able to distinguish glioblastoma from radiation necrosis, but smaller lesion-to-normal brain ratios were observed (SUVmean: p = 0.009; LNRmean: p = 0.028). In the inflammation study, 2-[18F]FELP showed no significant uptake in the inflammation lesion when compared to the control group (SUVmean: p = 0.149; LNRmean: p = 0.083). In contrast, both conventional and delayed [18F]FDG displayed significant uptake in the turpentine-invoked lesion (SUVmean: p = 0.021; LNRmean: p = 0.021). CONCLUSION This study suggests that the 2-[18F]FELP PET is able to differentiate glioblastoma from radiation necrosis and that the 2-[18F]FELP uptake is less likely to be contaminated by the presence of inflammation than the [18F]FDG signal. ADVANCES IN KNOWLEDGE These results are clinically relevant for the differential diagnosis between tumor and radiation necrosis because radiation necrosis always contains a certain amount of inflammatory cells. Hence, 2-[18F]FELP is preferred to discriminate tumor from radiation necrosis.
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Affiliation(s)
| | - Tristan Baguet
- Laboratory for Radiopharmacy, Ghent University, Ghent, Belgium
| | - Sarah Piron
- Laboratory for Radiopharmacy, Ghent University, Ghent, Belgium
| | - Glenn Pauwelyn
- Laboratory for Radiopharmacy, Ghent University, Ghent, Belgium
| | - Charlotte Bouckaert
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3), Ghent University Hospital, Ghent, Belgium
| | - Benedicte Descamps
- IBiTech-MEDISIP, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Robrecht Raedt
- Laboratory for Clinical and Experimental Neurophysiology, Neurobiology and Neuropsychology (LCEN3), Ghent University Hospital, Ghent, Belgium
| | - Christian Vanhove
- IBiTech-MEDISIP, Department of Electronics and Information Systems, Ghent University, Ghent, Belgium
| | - Filip De Vos
- Laboratory for Radiopharmacy, Ghent University, Ghent, Belgium
| | - Ingeborg Goethals
- Department of Nuclear Medicine, Ghent University Hospital, Ghent, Belgium
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14
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Moreau A, Febvey O, Mognetti T, Frappaz D, Kryza D. Contribution of Different Positron Emission Tomography Tracers in Glioma Management: Focus on Glioblastoma. Front Oncol 2019; 9:1134. [PMID: 31737567 PMCID: PMC6839136 DOI: 10.3389/fonc.2019.01134] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/10/2019] [Indexed: 12/19/2022] Open
Abstract
Although rare, glioblastomas account for the majority of primary brain lesions, with a dreadful prognosis. Magnetic resonance imaging (MRI) is currently the imaging method providing the higher resolution. However, it does not always succeed in distinguishing recurrences from non-specific temozolomide, have been shown to improve -related changes caused by the combination of radiotherapy, chemotherapy, and targeted therapy, also called pseudoprogression. Strenuous attempts to overcome this issue is highly required for these patients with a short life expectancy for both ethical and economic reasons. Additional reliable information may be obtained from positron emission tomography (PET) imaging. The development of this technique, along with the emerging of new classes of tracers, can help in the diagnosis, prognosis, and assessment of therapies. We reviewed the current data about the commonly used tracers, such as 18F-fluorodeoxyglucose (18F-FDG) and radiolabeled amino acids, as well as different PET tracers recently investigated, to report their strengths, limitations, and relevance in glioblastoma management.
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Affiliation(s)
| | | | | | | | - David Kryza
- UNIV Lyon - Université Claude Bernard Lyon 1, LAGEPP UMR 5007 CNRS Villeurbanne, Villeurbanne, France
- Hospices Civils de Lyon, Lyon, France
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15
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Strauss SB, Meng A, Ebani EJ, Chiang GC. Imaging Glioblastoma Posttreatment: Progression, Pseudoprogression, Pseudoresponse, Radiation Necrosis. Radiol Clin North Am 2019; 57:1199-1216. [PMID: 31582045 DOI: 10.1016/j.rcl.2019.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Radiographic monitoring of posttreatment glioblastoma is important for clinical trials and determining next steps in management. Evaluation for tumor progression is confounded by the presence of treatment-related radiographic changes, making a definitive determination less straight-forward. The purpose of this article was to describe imaging tools available for assessing treatment response in glioblastoma, as well as to highlight the definitions, pathophysiology, and imaging features typical of true progression, pseudoprogression, pseudoresponse, and radiation necrosis.
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Affiliation(s)
- Sara B Strauss
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Alicia Meng
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Edward J Ebani
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA
| | - Gloria C Chiang
- Department of Radiology, Weill Cornell Medical Center, 525 East 68th Street, Box 141, New York, NY 10065, USA.
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16
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Abstract
Over the last few decades, advances in radiation therapy technology have markedly improved radiation delivery. Advancements in treatment planning with the development of image-guided radiotherapy and techniques such as proton therapy, allow precise delivery of high doses of radiation conformed to the tumor. These advancements result in improved locoregional control while reducing radiation dose to surrounding normal tissue. The radiologic manifestations of these techniques can differ from radiation induced lung disease seen with traditional radiation therapy. Awareness of these radiologic manifestations and correlation with radiation treatment plans are important to differentiate expected radiation induced lung injury from recurrence, infection and drug toxicity.
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17
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Benveniste MF, Betancourt Cuellar SL, Gomez D, Shroff GS, Carter BW, Benveniste APA, Marom EM. Imaging of Radiation Treatment of Lung Cancer. Semin Ultrasound CT MR 2018; 39:297-307. [PMID: 29807640 DOI: 10.1053/j.sult.2018.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Radiation therapy is an important modality in the treatment of patients with lung cancer. Recent advances in delivering radiotherapy were designed to improve loco-regional tumor control by focusing higher doses on the tumor. More sophisticated techniques in treatment planning include 3-dimensional conformal radiation therapy, intensity-modulated radiotherapy, stereotactic body radiotherapy, and proton therapy. These methods may result in nontraditional patterns of radiation injury and various radiologic appearances that can be mistaken for recurrence, infection and other lung diseases. Knowledge of radiological manifestations, awareness of new radiation delivery techniques and correlation with radiation treatment plans are essential in order to correctly interpret imaging in these patients.
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Affiliation(s)
- Marcelo F Benveniste
- Department of Diagnostic Radiology, The University of Texas, M. D. Anderson Cancer Center, Houston, TX.
| | | | - Daniel Gomez
- Department of Radiation Oncology, The University of Texas, M. D. Anderson Cancer Center, Houston, TX
| | - Girish S Shroff
- Department of Diagnostic Radiology, The University of Texas, M. D. Anderson Cancer Center, Houston, TX
| | - Brett W Carter
- Department of Diagnostic Radiology, The University of Texas, M. D. Anderson Cancer Center, Houston, TX
| | | | - Edith M Marom
- Department of Diagnostic Radiology, The University of Texas, M. D. Anderson Cancer Center, Houston, TX
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Chiang GC, Kovanlikaya I, Choi C, Ramakrishna R, Magge R, Shungu DC. Magnetic Resonance Spectroscopy, Positron Emission Tomography and Radiogenomics-Relevance to Glioma. Front Neurol 2018; 9:33. [PMID: 29459844 PMCID: PMC5807339 DOI: 10.3389/fneur.2018.00033] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/15/2018] [Indexed: 12/22/2022] Open
Abstract
Advances in metabolic imaging techniques have allowed for more precise characterization of gliomas, particularly as it relates to tumor recurrence or pseudoprogression. Furthermore, the emerging field of radiogenomics where radiographic features are systemically correlated with molecular markers has the potential to achieve the holy grail of neuro-oncologic neuro-radiology, namely molecular diagnosis without requiring tissue specimens. In this section, we will review the utility of metabolic imaging and discuss the current state of the art related to the radiogenomics of glioblastoma.
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Affiliation(s)
- Gloria C Chiang
- Department of Neuroradiology, Weill Cornell Medical College, New York, NY, United States
| | - Ilhami Kovanlikaya
- Department of Neuroradiology, Weill Cornell Medical College, New York, NY, United States
| | - Changho Choi
- Radiology, Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Rohan Ramakrishna
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY, United States
| | - Rajiv Magge
- Department of Neurology, Weill Cornell Medical College, New York, NY, United States
| | - Dikoma C Shungu
- Department of Neuroradiology, Weill Cornell Medical College, New York, NY, United States
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19
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Menoux I, Noël G, Namer I, Antoni D. TEP/tomodensitométrie et imagerie spectroscopique par résonance magnétique tridmensionnelle pour le diagnostic différentiel entre radionécrose cérébrale et rechute tumorale après irradiation en conditions stéréotaxiques de métastases cérébrales : place dans l’arbre décisionnel. Cancer Radiother 2017; 21:389-397. [DOI: 10.1016/j.canrad.2017.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/17/2017] [Accepted: 03/01/2017] [Indexed: 11/16/2022]
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Tomura N, Kokubun M, Saginoya T, Mizuno Y, Kikuchi Y. Differentiation between Treatment-Induced Necrosis and Recurrent Tumors in Patients with Metastatic Brain Tumors: Comparison among 11C-Methionine-PET, FDG-PET, MR Permeability Imaging, and MRI-ADC-Preliminary Results. AJNR Am J Neuroradiol 2017; 38:1520-1527. [PMID: 28619837 DOI: 10.3174/ajnr.a5252] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 04/04/2017] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE In patients with metastatic brain tumors after gamma knife radiosurgery, the superiority of PET using 11C-methionine for differentiating radiation necrosis and recurrent tumors has been accepted. To evaluate the feasibility of MR permeability imaging, it was compared with PET using 11C-methionine, FDG-PET, and DWI for differentiating radiation necrosis from recurrent tumors. MATERIALS AND METHODS The study analyzed 18 lesions from 15 patients with metastatic brain tumors who underwent gamma knife radiosurgery. Ten lesions were identified as recurrent tumors by an operation. In MR permeability imaging, the transfer constant between intra- and extravascular extracellular spaces (/minute), extravascular extracellular space, the transfer constant from the extravascular extracellular space to plasma (/minute), the initial area under the signal intensity-time curve, contrast-enhancement ratio, bolus arrival time (seconds), maximum slope of increase (millimole/second), and fractional plasma volume were calculated. ADC was also acquired. On both PET using 11C-methionine and FDG-PET, the ratio of the maximum standard uptake value of the lesion divided by the maximum standard uptake value of the symmetric site in the contralateral cerebral hemisphere was measured (11C-methionine ratio and FDG ratio, respectively). The receiver operating characteristic curve was used for analysis. RESULTS The area under the receiver operating characteristic curve for differentiating radiation necrosis from recurrent tumors was the best for the 11C-methionine ratio (0.90) followed by the contrast-enhancement ratio (0.81), maximum slope of increase (millimole/second) (0.80), the initial area under the signal intensity-time curve (0.78), fractional plasma volume (0.76), bolus arrival time (seconds) (0.76), the transfer constant between intra- and extravascular extracellular spaces (/minute) (0.74), extravascular extracellular space (0.68), minimum ADC (0.60), the transfer constant from the extravascular extracellular space to plasma (/minute) (0.55), and the FDG-ratio (0.53). A significant difference in the 11C-methionine ratio (P < .01), contrast-enhancement ratio (P < .01), maximum slope of increase (millimole/second) (P < .05), and the initial area under the signal intensity-time curve (P < .05) was evident between radiation necrosis and recurrent tumor. CONCLUSIONS The present study suggests that PET using 11C-methionine may be superior to MR permeability imaging, ADC, and FDG-PET for differentiating radiation necrosis from recurrent tumors after gamma knife radiosurgery for metastatic brain tumors.
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Affiliation(s)
- N Tomura
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan.
| | - M Kokubun
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - T Saginoya
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - Y Mizuno
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
| | - Y Kikuchi
- From the Departments of Neuroradiology, Radiology, and Neurosurgery, Southern Tohoku Research Institute for Neuroscience, Southern Tohoku General Hospital, Koriyama City, Fukushima, Japan
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21
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Hojjati M, Badve C, Garg V, Tatsuoka C, Rogers L, Sloan A, Faulhaber P, Ros PR, Wolansky LJ. Role of FDG-PET/MRI, FDG-PET/CT, and Dynamic Susceptibility Contrast Perfusion MRI in Differentiating Radiation Necrosis from Tumor Recurrence in Glioblastomas. J Neuroimaging 2017; 28:118-125. [PMID: 28718993 PMCID: PMC5811794 DOI: 10.1111/jon.12460] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 06/24/2017] [Accepted: 06/26/2017] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND PURPOSE To compare the utility of quantitative PET/MRI, dynamic susceptibility contrast (DSC) perfusion MRI (pMRI), and PET/CT in differentiating radiation necrosis (RN) from tumor recurrence (TR) in patients with treated glioblastoma multiforme (GBM). METHODS The study included 24 patients with GBM treated with surgery, radiotherapy, and temozolomide who presented with progression on imaging follow‐up. All patients underwent PET/MRI and pMRI during a single examination. Additionally, 19 of 24 patients underwent PET/CT on the same day. Diagnosis was established by pathology in 17 of 24 and by clinical/radiologic consensus in 7 of 24. For the quantitative PET/MRI and PET/CT analysis, a region of interest (ROI) was drawn around each lesion and within the contralateral white matter. Lesion to contralateral white matter ratios for relative maximum, mean, and median were calculated. For pMRI, lesion ROI was drawn on the cerebral blood volume (CBV) maps and histogram metrics were calculated. Diagnostic performance for each metric was assessed using receiver operating characteristic curve analysis and area under curve (AUC) was calculated. RESULTS In 24 patients, 28 lesions were identified. For PET/MRI, relative mean ≥ 1.31 resulted in AUC of .94 with both sensitivity and negative predictive values (NPVs) of 100%. For pMRI, CBV max ≥3.32 yielded an AUC of .94 with both sensitivity and NPV measuring 100%. The joint model utilizing r‐mean (PET/MRI) and CBV mode (pMRI) resulted in AUC of 1.0. CONCLUSION Our study demonstrates that quantitative PET/MRI parameters in combination with DSC pMRI provide the best diagnostic utility in distinguishing RN from TR in treated GBMs.
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Affiliation(s)
- Mojgan Hojjati
- Department of Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Chaitra Badve
- Department of Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Vasant Garg
- Department of Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Curtis Tatsuoka
- Department of Neurology (Epidemiology), Case Western Reserve University, Cleveland, OH
| | - Lisa Rogers
- Department of Neurology, Neuro-oncology Program, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Andrew Sloan
- Department of Neurosurgery, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Peter Faulhaber
- Department of Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Pablo R Ros
- Department of Radiology, University Hospitals Cleveland Medical Center, Cleveland, OH
| | - Leo J Wolansky
- Department of Diagnostic Imaging, University of Connecticut School of Medicine, Farmington, CT
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Pseudoprogression, radionecrosis, inflammation or true tumor progression? challenges associated with glioblastoma response assessment in an evolving therapeutic landscape. J Neurooncol 2017; 134:495-504. [PMID: 28382534 DOI: 10.1007/s11060-017-2375-2] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/13/2017] [Indexed: 01/24/2023]
Abstract
The wide variety of treatment options that exist for glioblastoma, including surgery, ionizing radiation, anti-neoplastic chemotherapies, anti-angiogenic therapies, and active or passive immunotherapies, all may alter aspects of vascular permeability within the tumor and/or normal parenchyma. These alterations manifest as changes in the degree of contrast enhancement or T2-weighted signal hyperintensity on standard anatomic MRI scans, posing a potential challenge for accurate radiographic response assessment for identifying anti-tumor effects. The current review highlights the challenges that remain in differentiating true disease progression from changes due to radiation therapy, including pseudoprogression and radionecrosis, as well as immune or inflammatory changes that may occur as either an undesired result of cytotoxic therapy or as a desired consequence of immunotherapies.
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23
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Kumar Y, Gupta N, Mangla M, Hooda K, Mangla R. Comparison between MR Perfusion and 18F-FDG PET in Differentiating Tumor Recurrence from Nonneoplastic Contrast-enhancing Tissue. ASIAN PACIFIC JOURNAL OF CANCER PREVENTION : APJCP 2017; 18:759-763. [PMID: 28441783 PMCID: PMC5464496 DOI: 10.22034/apjcp.2017.18.3.759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Objective: Comparison of the accuracy of MR perfusion and 18-FDG-PET for differentiating tumor progression
from nonneoplastic contrast-enhancing tissue. Methods and Materials: Retrospective review of MR perfusion and
18-FDG-PET in 23 cases of primary brain tumors (17 high grade and 6 low grade glial neoplasms) and 5 cases of
metastatic lesions with enhancing lesions on post-treatment MRI was performed. The accuracy of MR perfusion versus
18-FDG-PET for distinguishing between nonneoplastic contrast-enhancing tissue and tumor recurrence was assessed.
Results: Both CBV (p<0.004) and SUV (p<0.02) are higher in recurrent tumors than necrosis. MR perfusion has an
accuracy of 94.5% for differentiating between tumor recurrence and necrosis, while 18-FDG-PET has an accuracy of
85.1% for differentiating between tumor recurrence and nonneoplastic contrast-enhancing tissue. Conclusion: Overall,
recurrent tumor demonstrates significantly higher CBV and SUV than nonneoplastic contrast-enhancing tissue. However,
MR perfusion appears to be more accurate than FDG PET for distinguishing the two entities.
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Affiliation(s)
- Yogesh Kumar
- Yale New Haven Health at Bridgeport Hospital, Department of Radiology, 267 Grant Street, Bridgeport, CT, USA.
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Wortman JR, Tirumani SH, Jagannathan JP, Rosenthal MH, Shinagare AB, Hornick JL, Baldini EH, Ramaiya NH. Radiation Therapy for Soft-Tissue Sarcomas: A Primer for Radiologists. Radiographics 2017; 36:554-72. [PMID: 26963462 DOI: 10.1148/rg.2016150083] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Radiation therapy (RT) plays an important role in multimodality therapy for soft-tissue sarcomas (STS). RT treatment paradigms have evolved significantly in recent years, and many different complex RT modalities are commonly used in STS. These include external-beam RT, intensity-modulated RT, stereotactic body RT, and brachytherapy. Imaging is essential throughout the treatment process. Plain radiographs, computed tomography (CT), magnetic resonance imaging, ultrasonography, and positron emission tomography/CT all play potential roles in the management of STS. Before RT, high-quality imaging is needed to direct management decisions, both by global tumor staging and detailed assessment of the extent of local disease. At the time of RT, precise planning imaging is required to delineate tumor volumes, including gross tumor volume, clinical target volume, and planning target volume, which are used to direct therapy. In addition, imaging at the time of RT must outline the location of adjacent vital organs, to optimize treatment efficacy and minimize toxicity. After RT, imaging is needed to assess the patient for tumor response to therapy. In addition, imaging at regular intervals is often required to monitor for recurrence of disease and potential complications of therapy. The purpose of this review is to familiarize radiologists with the indications for RT in STS, common therapeutic modalities used, roles of imaging throughout the treatment process, and complications of therapy.
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Affiliation(s)
- Jeremy R Wortman
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Sree Harsha Tirumani
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Jyothi P Jagannathan
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Michael H Rosenthal
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Atul B Shinagare
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Jason L Hornick
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Elizabeth H Baldini
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
| | - Nikhil H Ramaiya
- From the Departments of Radiology (J.R.W., S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.), Pathology (J.L.H.), and Radiation Oncology (E.H.B.), Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115; and Department of Imaging (S.H.T., J.P.J., M.H.R., A.B.S., N.H.R.) and Department of Radiation Oncology, Center for Sarcoma and Bone Oncology (E.H.B.), Dana-Farber Cancer Institute, Harvard Medical School, Boston, Mass
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[Imaging methods used in the differential diagnosis between brain tumour relapse and radiation necrosis after stereotactic radiosurgery of brain metastases: Literature review]. Cancer Radiother 2016; 20:837-845. [PMID: 28270324 DOI: 10.1016/j.canrad.2016.07.098] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/22/2016] [Accepted: 07/01/2016] [Indexed: 11/20/2022]
Abstract
After stereotactic radiosurgery for a cerebral metastasis, one of the dreaded toxicities is radionecrosis. In the follow-up of these patients, it is impossible to distinguish radiation necrosis from tumour relapse either clinically or with MRI. In current practice, many imaging methods are designed such as special sequences of MRI (dynamic susceptibility contrast perfusion and susceptibility-weighted imaging, diffusion), proton magnetic resonance spectroscopy, positron emission tomography, or more seldom 201-thallium single-photon emission computerized tomography. This article is a required literature analysis in order to establish a decision tree with the analysis of retrospective and prospective data.
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Ghaye B, Wanet M, El Hajjam M. Imaging after radiation therapy of thoracic tumors. Diagn Interv Imaging 2016; 97:1037-1052. [PMID: 27567554 DOI: 10.1016/j.diii.2016.06.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/02/2016] [Accepted: 06/02/2016] [Indexed: 12/25/2022]
Abstract
Radiation-induced lung disease (RILD) is frequent after therapeutic irradiation of thoracic malignancies. Many technique-, treatment-, tumor- and patient-related factors influence the degree of injury sustained by the lung after irradiation. Based on the time interval after the completion of the treatment RILD presents as early and late features characterized by inflammatory and fibrotic changes, respectively. They are usually confined to the radiation port. Though the typical pattern of RILD is easily recognized after conventional two-dimensional radiation therapy (RT), RILD may present with atypical patterns after more recent types of three- or four-dimensional RT treatment. Three atypical patterns are reported: the modified conventional, the mass-like and the scar-like patterns. Knowledge of the various features and patterns of RILD is important for correct diagnosis and appropriate treatment. RILD should be differentiated from recurrent tumoral disease, infection and radiation-induced tumors. Due to RILD, the follow-up after RT may be difficult as response evaluation criteria in solid tumours (RECIST) criteria may be unreliable to assess tumor control particularly after stereotactic ablation RT (SABR). Long-term follow-up should be based on clinical examination and morphological and/or functional investigations including CT, PET-CT, pulmonary functional tests, MRI and PET-MRI.
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Affiliation(s)
- B Ghaye
- Service de radiologie, secteur cardiothoracique, cliniques universitaires St-Luc, université catholique de Louvain, avenue Hippocrate 10, 1200 Bruxelles, Belgium.
| | - M Wanet
- Service de radiothérapie, oncologique, CHU UCL Namur, site clinique et maternité Sainte-Elisabeth, 5000 Namur, Belgium
| | - M El Hajjam
- Service de radiologie, hôpital Ambroise-Paré, 92100 Boulogne-Billancourt, France
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Chiang GC, Galla N, Ferraro R, Kovanlikaya I. The Added Prognostic Value of Metabolic Tumor Size on FDG-PET at First Suspected Recurrence of Glioblastoma Multiforme. J Neuroimaging 2016; 27:243-247. [DOI: 10.1111/jon.12386] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 11/29/2022] Open
Affiliation(s)
- Gloria C. Chiang
- Department of Radiology, Division of Neuroradiology, Weill Cornell Medical College; NewYork-Presbyterian Hospital; New York NY
| | - Naveen Galla
- Department of Radiology, Division of Neuroradiology, Weill Cornell Medical College; NewYork-Presbyterian Hospital; New York NY
| | - Richard Ferraro
- Department of Radiology, Division of Neuroradiology, Weill Cornell Medical College; NewYork-Presbyterian Hospital; New York NY
| | - Ilhami Kovanlikaya
- Department of Radiology, Division of Neuroradiology, Weill Cornell Medical College; NewYork-Presbyterian Hospital; New York NY
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Wray R, Solnes L, Mena E, Meoded A, Subramaniam RM. (18)F-Flourodeoxy-Glucose PET/Computed Tomography in Brain Tumors: Value to Patient Management and Survival Outcomes. PET Clin 2016; 10:423-30. [PMID: 26099676 DOI: 10.1016/j.cpet.2015.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
(18)F-flourodeoxy-glucose (FDG) PET/computed tomography (CT) is most useful in the evaluation of primary central nervous system (CNS) lymphoma, important in diagnosis, pretherapy prognosis, and therapy response evaluation. Utility in working up gliomas is less effective, and FDG PET/CT is most helpful when MR imaging is unclear. FDG avidity correlates with the grade of gliomas. FDG PET/CT can be used to noninvasively identify malignant transformation. Establishing this change in the disease process has significant effects on patient management and survival outcome.
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Affiliation(s)
- Rick Wray
- Russell H Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, JHOC 3230, 601 North Caroline Street, Baltimore, MD 21287, USA
| | - Lilja Solnes
- Russell H Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, JHOC 3230, 601 North Caroline Street, Baltimore, MD 21287, USA
| | - Esther Mena
- Russell H Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, JHOC 3230, 601 North Caroline Street, Baltimore, MD 21287, USA
| | - Avner Meoded
- Russell H Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, JHOC 3230, 601 North Caroline Street, Baltimore, MD 21287, USA
| | - Rathan M Subramaniam
- Russell H Morgan Department of Radiology and Radiological Sciences, Johns Hopkins School of Medicine, JHOC 3230, 601 North Caroline Street, Baltimore, MD 21287, USA; Department of Oncology, Johns Hopkins School of Medicine, 401 North Broadway, Baltimore, MD 21231, USA; Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, 624 North Broadway, Baltimore, MD 21205, USA.
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Lee LK, Kilcoyne A, Goldberg-Stein S, Chow DZ, Lee SI. FDG PET-CT of Genitourinary and Gynecologic Tumors: Overcoming the Challenges of Evaluating the Abdomen and Pelvis. Semin Roentgenol 2015; 51:2-11. [PMID: 27020231 DOI: 10.1053/j.ro.2015.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Leslie K Lee
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
| | - Aoife Kilcoyne
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Shlomit Goldberg-Stein
- Department of Radiology, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - David Z Chow
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Susanna I Lee
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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30
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A meta-analysis comparing 18F-FLT PET with 18F-FDG PET for assessment of brain tumor recurrence. Nucl Med Commun 2015; 36:695-701. [DOI: 10.1097/mnm.0000000000000302] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Kamble RB, N JP, Shivashankar R. CT Perfusion Dynamics of Intracranial Tuberculomas. J Clin Diagn Res 2015; 9:TC01-5. [PMID: 26155528 DOI: 10.7860/jcdr/2015/11587.5880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 03/16/2015] [Indexed: 11/24/2022]
Abstract
AIMS To study perfusion characteristics of intracranial tuberculomas and analyze changes with anti tubercular treatment. MATERIALS AND METHODS Nineteen patients of histologically proven intracranial tuberculomas were included in the study of which 9 were not on antitubercular treatment and ten were on antitubercular treatment (6 patients on treatment for less than 2 months and 4 were more than 6 months). All patients underwent CT perfusion (CTP) and CTP parameters like rCBV and rCBF were obtained from entire lesion, center and capsule of lesions and compared. RESULTS CTP parameters like rCBF and rCBV were significantly low in all the three ROIs in the group not on treatment compared to that of on treatment ; rCBF and rCBV of entire lesion (p=0.018 and p=0.005 respectively), capsule (p=0.045 and p=0.010 respectively) and center of the lesion (p=0.020 and p=0.009) respectively). Tuberculomas on antitubercular treatment of more than six months showed reduced rCBF and rCBV in entire lesion (p=0.01 & p=0.01 respectively), capsule (p=0.04 & p=0.03 respectively) and center (p=0.08 & p=0.05 respectively) compared to those on treatment for less than two months. Similarly tuberculomas on treatment for six months did not show significant difference in rCBF and rCBV compared to tuberculomas who were not on treatment. Tuberculomas on treatment for less than two months showed statistically increased rCBF and rCBV in entire lesion (p=0.01 & p=0.04 respectively), capsule (p=0.03 & p=0.01 respectively) and center (p= 0.03 &=0.01) compared to those not on treatment. CONCLUSION Intracranial tuberculomas not on treatment and those on treatment for around six months show low perfusion and tuberculomas on treatment for less than two months show high perfusion. These findings suggest that serial perfusion profiles of tuberculomas on treatment could possibly be seen as surrogate markers of response to treatment.
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Santra A, Kumar R, Sharma P. Use of 99m-technetium-glucoheptonate as a tracer for brain tumor imaging: An overview of its strengths and pitfalls. Indian J Nucl Med 2015; 30:1-8. [PMID: 25589798 PMCID: PMC4290059 DOI: 10.4103/0972-3919.147525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Brain tumors represent a vexing clinical problem in oncology due to their increasing incidence, difficulties in treatment and high rates of recurrence. It is especially challenging to evaluate the posttreatment disease status because differentiation of recurrence from treatment-induced changes (radiation necrosis) is not possible with the use of magnetic resonance imaging, the most commonly used imaging method in this setting. Various functional imaging methods, including positron emission tomography and single photon emission computed tomography (SPECT) have been employed in this context. SPECT with 99m-technetium (99mTc)-glucoheptonate (GHA) has shown promising results for differentiation of recurrent brain tumor from radiation necrosis. In this review, we have discussed in details the basics of 99mTc-GHA SPECT imaging in brain tumor along with the available literature in this regard.
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Affiliation(s)
- Amburanjan Santra
- Department of Nuclear Medicine, Medical College Kolkata, Kolkata, West Bengal, India
| | - Rakesh Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Punit Sharma
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
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Miyatake SI, Nonoguchi N, Furuse M, Yoritsune E, Miyata T, Kawabata S, Kuroiwa T. Pathophysiology, diagnosis, and treatment of radiation necrosis in the brain. Neurol Med Chir (Tokyo) 2014; 55:50-9. [PMID: 25744350 PMCID: PMC4533398 DOI: 10.2176/nmc.ra.2014-0188] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
New radiation modalities have made it possible to prolong the survival of individuals with malignant brain tumors, but symptomatic radiation necrosis becomes a serious problem that can negatively affect a patient’s quality of life through severe and lifelong effects. Here we review the relevant literature and introduce our original concept of the pathophysiology of brain radiation necrosis following the treatment of brain, head, and neck tumors. Regarding the pathophysiology of radiation necrosis, we introduce two major hypotheses: glial cell damage or vascular damage. For the differential diagnosis of radiation necrosis and tumor recurrence, we focus on the role of positron emission tomography. Finally, in accord with our hypothesis regarding the pathophysiology, we describe the promising effects of the anti-vascular endothelial growth factor antibody bevacizumab on symptomatic radiation necrosis in the brain.
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Ogbonnaya ES, Peev N, Nagaraja S, Dardis R. Double trouble: a tale of two radio-treatments. BMJ Case Rep 2014; 2014:bcr-2014-205922. [PMID: 25239997 DOI: 10.1136/bcr-2014-205922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
In recent years, an increasing number of patients are treated with radiation. In the early era of radiotherapy, which began soon after X-rays were discovered by Roentgen in 1895, tumours were irradiated with high doses of X-rays in a single fraction. The major initial setback was the damage caused to normal tissues; however, in recent times the use of stereotactic radiosurgery, which delivers high doses of radiation precisely to abnormal tissue targets while sparing the surrounding normal brain tissue, and particularly for surgically inaccessible tumours, has taken centre stage. Prophylactic whole brain radiation (in conjunction with aggressive chemotherapy) for childhood acute lymphoblastic leukaemia has been shown to improve patient survival, however, this is associated with complications in survivors. We report an interesting case of one of the longest survivors who has had double complications from radiotherapy-based interventions.
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Affiliation(s)
- Ebere Sunny Ogbonnaya
- Department of Neurosurgery, University Hospital Coventry and Warwickshire, Coventry, Coventry, UK
| | - Nikolay Peev
- Department of Neurosurgery, Salford Royal Hospital, Manchester, Manchester, UK
| | - Sanjoy Nagaraja
- Department of Radiology, University Hospital Coventry and Warwickshire, Coventry, Coventry, UK
| | - Ronan Dardis
- Department of Neurosurgery, University Hospital Coventry and Warwickshire, Coventry, Coventry, UK
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Takenaka S, Asano Y, Shinoda J, Nomura Y, Yonezawa S, Miwa K, Yano H, Iwama T. Comparison of (11)C-methionine, (11)C-choline, and (18)F-fluorodeoxyglucose-PET for distinguishing glioma recurrence from radiation necrosis. Neurol Med Chir (Tokyo) 2013; 54:280-9. [PMID: 24305028 PMCID: PMC4533484 DOI: 10.2176/nmc.oa2013-0117] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The aim of this study is to assess the different metabolic activities characteristic of glioma recurrence and radiation necrosis (RN) and to explore the diagnostic accuracy for differentiation of the two conditions using 11C-methionine (MET), 11C-choline (CHO), and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET). Fifty patients with lesions suggestive of recurrent glioma by magnetic resonance imaging (MRI) underwent MET, CHO, and FDG-PET. All patients who had previously been treated with radiotherapy for malignant glioma were subjected to open surgery and pathological diagnosis (17 recurrent grade 3- gliomas (Gr.3s) comprising 7 anaplastic astrocytomas (AAs) and 10 anaplastic oligodendrogliomas (AOs), 17 recurrent glioblastomas (Gr.4s), and 16 RNs). We measured the PET/Gd volume ratio, the PET/Gd overlap ratio, and the lesion/normal brain uptake ratio (L/N ratio) and determined the optimal index of each PET scan. The PET/Gd volume ratio and the PET/Gd overlap ratio for RN were significantly lower than those of glioma recurrence only with MET-PET (P < 0.05). The L/N ratio of RN was significantly lower than that of Gr.4 with all PET imaging (P < 0.001) and was significantly lower than that of Gr.3, especially for AO, only with MET-PET images (P < 0.005). Receiver operating characteristic (ROC) analysis showed that the area under the curve of MET, CHO, and FDG was 92.5, 81.4, and 77.4, respectively. MET L/N ratio of greater than 2.51 provided the best sensitivity and specificity for establishing glioma recurrence (91.2% and 87.5%, respectively). These results demonstrated that MET-PET was superior to both CHO and FDG-PET for diagnostic accuracy in distinguishing glioma recurrence from RN.
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Affiliation(s)
- Shunsuke Takenaka
- Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital
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Challenges With the Diagnosis and Treatment of Cerebral Radiation Necrosis. Int J Radiat Oncol Biol Phys 2013; 87:449-57. [DOI: 10.1016/j.ijrobp.2013.05.015] [Citation(s) in RCA: 200] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 05/02/2013] [Accepted: 05/05/2013] [Indexed: 11/17/2022]
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Verma N, Cowperthwaite MC, Burnett MG, Markey MK. Differentiating tumor recurrence from treatment necrosis: a review of neuro-oncologic imaging strategies. Neuro Oncol 2013; 15:515-34. [PMID: 23325863 DOI: 10.1093/neuonc/nos307] [Citation(s) in RCA: 219] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Differentiating treatment-induced necrosis from tumor recurrence is a central challenge in neuro-oncology. These 2 very different outcomes after brain tumor treatment often appear similarly on routine follow-up imaging studies. They may even manifest with similar clinical symptoms, further confounding an already difficult process for physicians attempting to characterize a new contrast-enhancing lesion appearing on a patient's follow-up imaging. Distinguishing treatment necrosis from tumor recurrence is crucial for diagnosis and treatment planning, and therefore, much effort has been put forth to develop noninvasive methods to differentiate between these disparate outcomes. In this article, we review the latest developments and key findings from research studies exploring the efficacy of structural and functional imaging modalities for differentiating treatment necrosis from tumor recurrence. We discuss the possibility of computational approaches to investigate the usefulness of fine-grained imaging characteristics that are difficult to observe through visual inspection of images. We also propose a flexible treatment-planning algorithm that incorporates advanced functional imaging techniques when indicated by the patient's routine follow-up images and clinical condition.
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Affiliation(s)
- Nishant Verma
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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Ellingson BM, Chen W, Harris RJ, Pope WB, Lai A, Nghiemphu PL, Czernin J, Phelps ME, Cloughesy TF. PET Parametric Response Mapping for Clinical Monitoring and Treatment Response Evaluation in Brain Tumors. PET Clin 2012; 8:201-17. [PMID: 27157948 DOI: 10.1016/j.cpet.2012.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PET parametric response maps (PRMs) are a provocative new molecular imaging technique for quantifying brain tumor response to therapy in individual patients. By aligning sequential PET scans over time using anatomic MR imaging information, the voxel-wise change in radiotracer uptake can be quantified and visualized. PET PRMs can be performed before and after a particular therapy to test whether the tumor is responding favorably, or performed relative to a distant time point to monitor changes through the course of a treatment. This article focuses on many of the technical details involved in generating, visualizing, and quantifying PET PRMs, and practical applications and example case studies.
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Affiliation(s)
- Benjamin M Ellingson
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA; Department of Biomedical Physics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA; Department of Biomedical Engineering, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
| | - Wei Chen
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Robert J Harris
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA; Department of Biomedical Physics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Whitney B Pope
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Albert Lai
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Phioanh L Nghiemphu
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Johannes Czernin
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Michael E Phelps
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Timothy F Cloughesy
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
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Waerzeggers Y, Ullrich RT, Monfared P, Viel T, Weckesser M, Stummer W, Schober O, Winkeler A, Jacobs AH. Specific biomarkers of receptors, pathways of inhibition and targeted therapies: clinical applications. Br J Radiol 2012; 84 Spec No 2:S179-95. [PMID: 22433828 DOI: 10.1259/bjr/76389842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
A deeper understanding of the role of specific genes, proteins, pathways and networks in health and disease, coupled with the development of technologies to assay these molecules and pathways in patients, promises to revolutionise the practice of clinical medicine. In particular, the discovery and development of novel drugs targeted to disease-specific alterations could benefit significantly from non-invasive imaging techniques assessing the dynamics of specific disease-related parameters. Here we review the application of imaging biomarkers in the management of patients with brain tumours, especially malignant glioma. This first part of the review focuses on imaging biomarkers of general biochemical and physiological processes related to tumour growth such as energy, protein, DNA and membrane metabolism, vascular function, hypoxia and cell death. These imaging biomarkers are an integral part of current clinical practice in the management of primary brain tumours. The second article of the review discusses the use of imaging biomarkers of specific disease-related molecular genetic alterations such as apoptosis, angiogenesis, cell membrane receptors and signalling pathways. Current applications of these biomarkers are mostly confined to experimental small animal research to develop and validate these novel imaging strategies with future extrapolation in the clinical setting as the primary objective.
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Affiliation(s)
- Y Waerzeggers
- European Institute for Molecular Imaging, Westfaelische Wilhelms-University, Muenster, Germany
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Imani F, Boada FE, Lieberman FS, Davis DK, Deeb EL, Mountz JM. Comparison of proton magnetic resonance spectroscopy with fluorine-18 2-fluoro-deoxyglucose positron emission tomography for assessment of brain tumor progression. J Neuroimaging 2012; 22:184-90. [PMID: 21155917 PMCID: PMC3135727 DOI: 10.1111/j.1552-6569.2010.00561.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES We investigated the accuracy of high-field proton magnetic resonance spectroscopy ((1) H MRS) and fluorine-18 2-fluoro-deoxyglucose positron emission tomography ((18) F-FDG-PET) for diagnosis of glioma progression following tumor resection, stereotactic radiation, and chemotherapy. METHODS Twelve post-therapy patients with histology proven gliomas (six grade II and six grade III) presented with magnetic resonance imaging (MRI) and clinical symptoms suggestive but not conclusive of progression were entered into the study. (1) H MRS data were acquired and 3-dimensional volumetric maps of choline (Cho) over creatine (Cr) were generated. Intensity of (18) F-FDG uptake was evaluated on a semiquantitative scale. RESULTS The accuracy of (1) H MRS and (18) F-FDG-PET imaging for diagnosis of glioma progression was 75% and 83%, respectively. Classifying the tumors by grade improved accuracy of (18) F-FDG-PET to 100% in high-grade gliomas and accuracy of (1) H MRS to 80% in low-grade tumors. Spearman's analysis demonstrated a trend between (18) F-FDG uptake and tumor grading (ρ= .612, P-value = .272). The results of (18) F-FDG-PET and (1) H MRS were concordant in 75% (9/12) of cases. CONCLUSION The combination of (1) H MRS data and (18) F-FDG-PET imaging can enhance detection of glioma progression. (1) H MRS imaging was more accurate in low-grade gliomas and (18) F-FDG-PET provided better accuracy in high-grade gliomas.
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Affiliation(s)
- Farzin Imani
- Department of Radiology, University of Pittsburgh Medical Center, PA 15238, USA.
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Siu A, Wind JJ, Iorgulescu JB, Chan TA, Yamada Y, Sherman JH. Radiation necrosis following treatment of high grade glioma--a review of the literature and current understanding. Acta Neurochir (Wien) 2012; 154:191-201; discussion 201. [PMID: 22130634 DOI: 10.1007/s00701-011-1228-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 11/07/2011] [Indexed: 10/15/2022]
Abstract
Radiation therapy is an integral part of the standard treatment paradigm for malignant gliomas, with proven efficacy in randomized control trials. Radiation treatment is not without risk however, and radiation injury occurs in a certain proportion of patients. Difficulties in differentiating recurrence from radiation injury complicate the treatment course and can compromise care. These complexities are compounded by the recent distinction of two types of radiation injury: pseudoprogression and radiation necrosis, which are likely the result of radiation injury to the tumor and normal tissue, respectively. A thorough understanding of radiation-induced injury offers insights to guide further therapies. We detail the current knowledge of the mechanisms of radiation injury, along with potential targets for therapeutic intervention. Various diagnostic modalities are also described, in addition to the multiple options for treatment within the context of their pathophysiology and clinical efficacy. Radiation therapy is an integral part of the multidisciplinary management of gliomas, and the optimal diagnosis and management of radiation injury is paramount to improving patient outcomes.
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Oldham SAA, Barron B, Munden RF, Lamki N, Lamki L. The Radiology of the Thoracic Manifestations of AIDS. ACTA ACUST UNITED AC 2011. [DOI: 10.3109/10408379891244190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Detection of recurrence in glioma: a comparative prospective study between Tc-99m GHA SPECT and F-18 FDG PET/CT. Clin Nucl Med 2011; 36:650-5. [PMID: 21716014 DOI: 10.1097/rlu.0b013e318217aee0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Early and correct diagnosis of tumor recurrence and its differentiation from therapy-related changes is crucial for prompt and adequate management of glioma patients. The purpose of this study was to compare the efficacies of Tc-99m glucoheptonate (GHA) single photon emission tomography (SPECT) and F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in detection of recurrence in patients with glioma. METHODS A total of 90 patients with histopathologically proven glioma who had suspicion of recurrence clinically or on magnetic resonance imaging were evaluated using Tc-99m GHA SPECT and FDG PET/CT. Combination of clinical follow-up, repeat imaging, and biopsy (when available) was taken as gold standard. RESULTS On the basis of gold standard, 59 patients were positive and 31 were negative for tumor recurrence. The sensitivity, specificity, and accuracy of GHA SPECT were 85%, 97%, and 89%, respectively, whereas those of FDG PET/CT were 70%, 97%, and 80%, respectively. On subgroup analysis, GHA SPECT performed better than FDG PET/CT in all grades except for grade II gliomas, where both were equally effective. In all, 15 patients had intermodality discordance, with GHA SPECT being correct in 13 of them. CONCLUSIONS GHA SPECT appears to be a better imaging modality than FDG PET/CT for detection of recurrent gliomas.
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Chen J, Dassarath M, Yin Z, Liu H, Yang K, Wu G. Radiation induced temporal lobe necrosis in patients with nasopharyngeal carcinoma: a review of new avenues in its management. Radiat Oncol 2011; 6:128. [PMID: 21961805 PMCID: PMC3195720 DOI: 10.1186/1748-717x-6-128] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Accepted: 09/30/2011] [Indexed: 01/13/2023] Open
Abstract
Temporal lobe necrosis (TLN) is the most debilitating late-stage complication after radiation therapy in patients with nasopharyngeal cancer (NPC). The bilateral temporal lobes are inevitably encompassed in the radiation field and are thus prone to radiation induced necrosis. The wide use of 3D conformal and intensity-modulated radiation therapy (IMRT) in the treatment of NPC has led to a dwindling incidence of TLN. Yet, it still holds great significance due to its incapacitating feature and the difficulties faced clinically and radiologically in distinguishing it from a malignancy. In this review, we highlight the evolution of different imaging modalities and therapeutic options. FDG PET, SPECT and Magnetic Spectroscopy are among the latest imaging tools that have been considered. In terms of treatment, Bevacizumab remains the latest promising breakthrough due to its ability to reverse the pathogenesis unlike conventional treatment options including large doses of steroids, anticoagulants, vitamins, hyperbaric oxygen and surgery.
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Affiliation(s)
- Jing Chen
- Cancer Centre, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Larici AR, del Ciello A, Maggi F, Santoro SI, Meduri B, Valentini V, Giordano A, Bonomo L. Lung abnormalities at multimodality imaging after radiation therapy for non-small cell lung cancer. Radiographics 2011; 31:771-89. [PMID: 21571656 DOI: 10.1148/rg.313105096] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Three-dimensional (3D) conformal radiation therapy (CRT) and stereotactic body radiation therapy (SBRT) are designed to deliver the maximum therapeutic radiation dose to the tumor, allowing improved local disease control, while minimizing irradiation of surrounding normal structures. The complex configuration of the multiple beams that deliver the radiation dose to the tumor in 3D CRT and SBRT produces patterns of lung injury that differ in location and extent from those seen after conventional radiation therapy. Radiation-induced changes in lung tissue after 3D CRT and SBRT occur within the radiation portals. The imaging appearance of irradiated tissues varies according to the time elapsed after the completion of therapy, with acute-phase changes of radiation pneumonitis represented by ground-glass opacities and consolidation and with late-phase changes of radiation fibrosis manifesting as volume loss, consolidation, and traction bronchiectasis. Knowledge of treatment timelines and radiation field locations, as well as familiarity with the full spectrum of possible radiation-induced lung injuries after 3D CRT and SBRT, is important to correctly interpret the abnormalities that may be seen at computed tomography (CT). Differential diagnoses in this context might include infections, lymphangitic carcinomatosis, local recurrence of malignancy, and radiation-induced tumors. The integration of morphologic information obtained at CT with metabolic information obtained at positron emission tomography is helpful in distinguishing radiation-induced parenchymal abnormalities from residual, recurrent, and new cancers. Thus, multimodality follow-up imaging may lead to substantial changes in disease management.
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Affiliation(s)
- Anna Rita Larici
- Department of Bioimaging and Radiological Sciences, Catholic University, A. Gemelli Hospital, Largo A. Gemelli 8, 00168 Rome, Italy.
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Amin A, Moustafa H, Ahmed E, El-Toukhy M. Glioma residual or recurrence versus radiation necrosis: accuracy of pentavalent technetium-99m-dimercaptosuccinic acid [Tc-99m (V) DMSA] brain SPECT compared to proton magnetic resonance spectroscopy (1H-MRS): initial results. J Neurooncol 2011; 106:579-87. [PMID: 21912937 DOI: 10.1007/s11060-011-0694-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Accepted: 08/09/2011] [Indexed: 11/27/2022]
Abstract
We compared pentavalent technetium-99m dimercaptosuccinic acid (Tc-99m (V) DMSA) brain single photon emission computed tomography (SPECT) and proton magnetic resonance spectroscopy ((1)H-MRS) for the detection of residual or recurrent gliomas after surgery and radiotherapy. A total of 24 glioma patients, previously operated upon and treated with radiotherapy, were studied. SPECT was acquired 2-3 h post-administration of 555-740 MBq of Tc-99m (V) DMSA. Lesion to normal (L/N) delayed uptake ratio was calculated as: mean counts of tumor ROI (L)/mean counts of normal mirror symmetric ROI (N). (1)H-MRS was performed using a 1.5-T scanner equipped with a spectroscopy package. SPECT and (1)H-MRS results were compared with pathology or follow-up neuroimaging studies. SPECT and (1)H-MRS showed concordant residue or recurrence in 9/24 (37.5%) patients. Both were true negative in 6/24 (25%) patients. SPECT and (1)H-MRS disagreed in 9 recurrences [7/9 (77.8%) and 2/9 (22.2%) were true positive by SPECT and (1)H-MRS, respectively]. Sensitivity of SPECT and (1)H-MRS in detecting recurrence was 88.8 and 61.1% with accuracies of 91.6 and 70.8%, respectively. A positive association between the delayed L/N ratio and tumor grade was found; the higher the grade, the higher is the L/N ratio (r = 0.62, P = 0.001). Tc-99m (V) DMSA brain SPECT is more accurate compared to (1)H-MRS for the detection of tumor residual tissues or recurrence in glioma patients with previous radiotherapy. It allows early and non-invasive differentiation of residual tumor or recurrence from irradiation necrosis.
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Affiliation(s)
- Amr Amin
- Nuclear Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
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Sandu N, Pöpperl G, Toubert ME, Spiriev T, Arasho B, Orabi M, Schaller B. Current molecular imaging of spinal tumors in clinical practice. Mol Med 2011; 17:308-16. [PMID: 21210073 PMCID: PMC3060992 DOI: 10.2119/molmed.2010.00218] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Accepted: 01/03/2011] [Indexed: 11/06/2022] Open
Abstract
Energy metabolism measurements in spinal cord tumors, as well as in osseous spinal tumors/metastasis in vivo, are rarely performed only with molecular imaging (MI) by positron emission tomography (PET). This imaging modality developed from a small number of basic clinical science investigations followed by subsequent work that influenced and enhanced the research of others. Apart from precise anatomical localization by coregistration of morphological imaging and quantification, the most intriguing advantage of this imaging is the opportunity to investigate the time course (dynamics) of disease-specific molecular events in the intact organism. Most importantly, MI represents one of the key technologies in translational molecular neuroscience research, helping to develop experimental protocols that may later be applied to human patients. PET may help monitor a patient at the vertebral level after surgery and during adjuvant treatment for recurrent or progressive disease. Common clinical indications for MI of primary or secondary CNS spinal tumors are: (i) tumor diagnosis, (ii) identification of the metabolically active tumor compartments (differentiation of viable tumor tissue from necrosis) and (iii) prediction of treatment response by measurement of tumor perfusion or ischemia. While spinal PET has been used under specific circumstances, a question remains as to whether the magnitude of biochemical alterations observed by MI in CNS tumors in general (specifically spinal tumors) can reveal any prognostic value with respect to survival. MI may be able to better identify early disease and to differentiate benign from malignant lesions than more traditional methods. Moreover, an adequate identification of treatment effectiveness may influence patient management. MI probes could be developed to image the function of targets without disturbing them or as treatment to modify the target's function. MI therefore closes the gap between in vitro and in vivo integrative biology of disease. At the spinal level, MI may help to detect progression or recurrence of metastatic disease after surgical treatment. In cases of nonsurgical treatments such as chemo-, hormone- or radiotherapy, it may better assess biological efficiency than conventional imaging modalities coupled with blood tumor markers. In fact, PET provides a unique possibility to correlate topography and specific metabolic activity, but it requires additional clinical and experimental experience and research to find new indications for primary or secondary spinal tumors.
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Affiliation(s)
- Nora Sandu
- Department of Neurological Surgery, Lariboisière Hospital, Universities of Paris, France
- Department of Neurological Surgery, University of Lausanne, Switzerland
| | | | | | - Toma Spiriev
- Department of Neurological Surgery, Lariboisière Hospital, Universities of Paris, France
- Department of Neurosurgery, Tokuda Hospital, Sofia, Bulgaria
| | - Belachew Arasho
- Department of Neurological Surgery, Lariboisière Hospital, Universities of Paris, France
- Department of Neurology, University of Addis Ababa, Ethiopia
| | - Mikael Orabi
- Department of Neurological Surgery, Lariboisière Hospital, Universities of Paris, France
| | - Bernhard Schaller
- Department of Neurological Surgery, Lariboisière Hospital, Universities of Paris, France
- Department of Neurology, University of Addis Ababa, Ethiopia
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Abstract
The evaluation of patients with known or suspected recurrent colorectal carcinoma is now an accepted indication for positron emission tomography using (18)F-fluorodeoxyglucose (FDG-PET) imaging. PET and CT are complimentary, and therefore, integrated PET/CT imaging should be performed where available. FDG-PET/CT is indicated as the initial test for diagnosis and staging of recurrence, and for preoperative staging (N and M) of known recurrence that is considered to be resectable. FDG-PET imaging is valuable for the differentiation of posttreatment changes from recurrent tumor, differentiation of benign from malignant lesions (indeterminate lymph nodes, hepatic, and pulmonary lesions), and the evaluation of patients with rising tumor markers in the absence of a known source. The addition of FDG-PET/CT to the evaluation of these patients reduces overall treatment costs by accurately identifying patients who will and will not benefit from surgical procedures. This new powerful technology provides more accurate interpretation of both CT and FDG-PET images and therefore more optimal patient care. PET/CT fusion images affect the clinical management by guiding further procedures (biopsy, surgery, and radiation therapy), excluding the need for additional procedures, and changing both inter- and intramodality therapy.
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Affiliation(s)
- Dominique Delbeke
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, USA.
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50
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Liu Y, Ghesani NV, Zuckier LS. Physiology and pathophysiology of incidental findings detected on FDG-PET scintigraphy. Semin Nucl Med 2010; 40:294-315. [PMID: 20513451 DOI: 10.1053/j.semnuclmed.2010.02.002] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A routine feature of positron emission tomography/computed tomography (PET/CT) imaging is whole-body acquisition that results in many unexpected findings identified outside of the primary region of abnormality. Furthermore, (18)F-fluorodeoxyglucose (FDG) is a marker of glycolysis and does not specifically accumulate in malignancy. Understanding the physiology and pathophysiology of normal FDG distribution and common incidental findings is therefore essential to the physician interpreting whole-body FDG-PET/CT studies. Whereas many incidental findings are benign and of limited clinical significance, others represent uncommon manifestations of the primary malignancy, second malignancies, or various clinically significant pathologic processes. Patients with a single malignancy are at greater risk of developing synchronous or metachronous second malignancies, possibly related to exposure to shared carcinogenic agents or presence of prooncogenic mutations. The decision of how to pursue an intervention on the basis of an incidental finding is generally left to clinical judgment.
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Affiliation(s)
- Yiyan Liu
- Nuclear Medicine Section, Department of Radiology, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark, NJ, USA.
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