1
|
Hannan CJ, Lewis D, O'Leary C, Waqar M, Brough D, Couper KN, Dyer DP, Vail A, Heal C, Macarthur J, Cooper C, Hammerbeck-Ward C, Evans DG, Rutherford SA, Lloyd SK, Mackenzie Freeman SR, Coope DJ, King AT, Pathmanaban ON. Increased Circulating Chemokines and Macrophage Recruitment in Growing Vestibular Schwannomas. Neurosurgery 2023; 92:581-589. [PMID: 36729787 DOI: 10.1227/neu.0000000000002252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/20/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND There is evidence that macrophage infiltration in the tumor microenvironment promotes vestibular schwannoma (VS) growth. Efficacy of bevacizumab in NF2-associated VS demonstrates the value of therapies targeting the microvascular tumor microenvironment, and tumor-associated macrophages (TAMs) may represent another druggable target. OBJECTIVE To characterize the relationship between growth, TAM infiltration, and circulating monocyte chemokines in a large cohort of patients with VS. METHODS Immunostaining for Iba1 (macrophages), CD31 (endothelium), and fibrinogen (permeability) was performed on 101 growing and 19 static sporadic VS. The concentrations of monocyte-specific chemokines were measured in the plasma of 50 patients with growing VS and 25 patients with static VS. RESULTS The Iba1 + cell count was significantly higher in growing as compared with static VS (592 vs 226/×20 HPF, P =<0.001). Similarly, the CD31 + % surface area was higher in growing VS (2.19% vs 1.32%, P = .01). There was a positive correlation between TAM infiltration and VS growth rate, which persisted after controlling for the effect of tumor volume (aR2 = 0.263, P =<0.001). The plasma concentrations of several monocytic chemokines were higher in patients with growing rather than static VS. CONCLUSION There is a strong positive correlation between TAM infiltration and volumetric growth of VS, and this relationship is independent of tumor size. There is a colinear relationship between TAM infiltration and tumor vascularity, implying that inflammation and angiogenesis are interlinked in VS. Chemokines known to induce monocyte chemotaxis are found in higher concentrations in patients with growing VS, suggestive of a potential pathophysiological mechanism.
Collapse
Affiliation(s)
- Cathal John Hannan
- Manchester Centre for Clinical Neurosciences, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Cardiovascular Sciences, University of Manchester, UK
| | - Daniel Lewis
- Manchester Centre for Clinical Neurosciences, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
| | - Claire O'Leary
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
| | - Mueez Waqar
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
| | - David Brough
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
- Lydia Becker Institute of Inflammation and Immunology, University of Manchester, UK
| | - Kevin N Couper
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Lydia Becker Institute of Inflammation and Immunology, University of Manchester, UK
| | - Douglas P Dyer
- Wellcome Centre for Cell-Matrix Research, University of Manchester, UK
| | - Andy Vail
- Centre for Biostatistics, University of Manchester, UK
| | - Calvin Heal
- Centre for Biostatistics, University of Manchester, UK
| | | | | | | | - D Gareth Evans
- St. Mary's Centre for Genomic Medicine
- Division of Evolution and Genomic Sciences, University of Manchester, UK
| | | | - Simon K Lloyd
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
- Department of Otolaryngology, Manchester University NHS Foundation Trust, Manchester, UK
- Department of Otolaryngology, Salford Royal Hospital, Manchester, UK
| | - Simon Richard Mackenzie Freeman
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
- Department of Otolaryngology, Salford Royal Hospital, Manchester, UK
| | - David John Coope
- Manchester Centre for Clinical Neurosciences, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
| | - Andrew T King
- Manchester Centre for Clinical Neurosciences, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Cardiovascular Sciences, University of Manchester, UK
| | - Omar Nathan Pathmanaban
- Manchester Centre for Clinical Neurosciences, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, Manchester, UK
- Division of Neuroscience and Experimental Psychology, University of Manchester, UK
| |
Collapse
|
3
|
Omidi A, Weiss E, Wilson JS, Rosu-Bubulac M. Quantitative assessment of intra- and inter-modality deformable image registration of the heart, left ventricle, and thoracic aorta on longitudinal 4D-CT and MR images. J Appl Clin Med Phys 2021; 23:e13500. [PMID: 34962065 PMCID: PMC8833287 DOI: 10.1002/acm2.13500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/17/2021] [Accepted: 11/29/2021] [Indexed: 12/25/2022] Open
Abstract
Purpose Magnetic resonance imaging (MRI)‐based investigations into radiotherapy (RT)‐induced cardiotoxicity require reliable registrations of magnetic resonance (MR) imaging to planning computed tomography (CT) for correlation to regional dose. In this study, the accuracy of intra‐ and inter‐modality deformable image registration (DIR) of longitudinal four‐dimensional CT (4D‐CT) and MR images were evaluated for heart, left ventricle (LV), and thoracic aorta (TA). Methods and materials Non‐cardiac‐gated 4D‐CT and T1 volumetric interpolated breath‐hold examination (T1‐VIBE) MRI datasets from five lung cancer patients were obtained at two breathing phases (inspiration/expiration) and two time points (before treatment and 5 weeks after initiating RT). Heart, LV, and TA were manually contoured. Each organ underwent three intramodal DIRs ((A) CT modality over time, (B) MR modality over time, and (C) MR contrast effect at the same time) and two intermodal DIRs ((D) CT/MR multimodality at same time and (E) CT/MR multimodality over time). Hausdorff distance (HD), mean distance to agreement (MDA), and Dice were evaluated and assessed for compliance with American Association of Physicists in Medicine (AAPM) Task Group (TG)‐132 recommendations. Results Mean values of HD, MDA, and Dice under all registration scenarios for each region of interest ranged between 8.7 and 16.8 mm, 1.0 and 2.6 mm, and 0.85 and 0.95, respectively, and were within the TG‐132 recommended range (MDA < 3 mm, Dice > 0.8). Intramodal DIR showed slightly better results compared to intermodal DIR. Heart and TA demonstrated higher registration accuracy compared to LV for all scenarios except for HD and Dice values in Group A. Significant differences for each metric and tissue of interest were noted between Groups B and D and between Groups B and E. MDA and Dice significantly differed between LV and heart in all registrations except for MDA in Group E. Conclusions DIR of the heart, LV, and TA between non‐cardiac‐gated longitudinal 4D‐CT and MRI across two modalities, breathing phases, and pre/post‐contrast is acceptably accurate per AAPM TG‐132 guidelines. This study paves the way for future evaluation of RT‐induced cardiotoxicity and its related factors using multimodality DIR.
Collapse
Affiliation(s)
- Alireza Omidi
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Elisabeth Weiss
- Department of Radiation Oncology, Virginia Commonwealth University Health, Richmond, Virginia, USA
| | - John S Wilson
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA.,Pauley Heart Center, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Mihaela Rosu-Bubulac
- Department of Radiation Oncology, Virginia Commonwealth University Health, Richmond, Virginia, USA
| |
Collapse
|
4
|
Yao L, Alahmari M, Temel Y, Hovinga K. Therapy of Sporadic and NF2-Related Vestibular Schwannoma. Cancers (Basel) 2020; 12:E835. [PMID: 32244314 PMCID: PMC7226024 DOI: 10.3390/cancers12040835] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 12/16/2022] Open
Abstract
Vestibular schwannoma (VS) is a benign primary brain tumor that occurs sporadic or as part of a genetic syndrome. The most common cause is the mutation of the NF2 tumor suppressor gene that is involved in the production of the protein merlin. Merlin plays a role in cell growth and cell adhesion. In patients with NF2, the VSs arise bilaterally and coincide with other brain tumors. In sporadic VS, the tumor is typically unilateral and does not coincide in combination with other tumors. MRI is the standard imaging technique and can be used to assess the size and aspect of the tumor as well as the progression of disease. The preferred management of large VS in both VS types is surgery with or without adjuvant radiation. The management for the medium- or small-sized VS includes wait and scan, radiotherapy and/or surgery. This choice depends on the preference of the patient and institutional protocols. The outcomes of surgical and radiotherapy treatments are improving due to progress in surgical equipment/approaches, advances in radiation delivery techniques and dose optimizations protocols. The main purpose of the management of VS is preserving function as long as possible in combination with tumor control.
Collapse
Affiliation(s)
- Longping Yao
- Department of Neurosurgery, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (L.Y.); (M.A.); (Y.T.)
| | - Mohammed Alahmari
- Department of Neurosurgery, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (L.Y.); (M.A.); (Y.T.)
- Department of Radiology, King Fahad Hospital of Imam Abdulrahman Bin Faisal University, P.O. Box 40046, 31952 AL-Khobar, Saudi Arabia
| | - Yasin Temel
- Department of Neurosurgery, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (L.Y.); (M.A.); (Y.T.)
| | - Koos Hovinga
- Department of Neurosurgery, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands; (L.Y.); (M.A.); (Y.T.)
| |
Collapse
|
5
|
MRI basics for radiation oncologists. Clin Transl Radiat Oncol 2019; 18:74-79. [PMID: 31341980 PMCID: PMC6630156 DOI: 10.1016/j.ctro.2019.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 02/01/2023] Open
Abstract
Issues of MRI that are relevant for radiation oncologists are addressed. Radiation oncology requires dedicated scan protocols. Use of diagnostic protocols is not recommended for radiotherapy. MR images must be made in treatment position with the standard positioning devices. Safety screening prior to entering the MRI room is crucial.
MRI is increasingly used in radiation oncology to facilitate tumor and organ-at-risk delineation and image guidance. In this review, we address issues of MRI that are relevant for radiation oncologists when interpreting MR images offered for radiotherapy. Whether MRI is used in combination with CT or in an MRI-only workflow, it is generally necessary to ensure that MR images are acquired in treatment position, using the positioning and fixation devices that are commonly applied in radiotherapy. For target delineation, often a series of separate image sets are used with distinct image contrasts, acquired within a single exam. MR images can suffer from image distortions. While this can be avoided with dedicated scan protocols, in a diagnostic setting geometrical fidelity is less relevant and is therefore less accounted for. Since geometrical fidelity is of utmost importance in radiation oncology, it requires dedicated scan protocols. The strong magnetic field of an MRI scanner and the use of radiofrequency radiation can cause safety hazards if not properly addressed. Safety screening is crucial for every patient and every operator prior to entering the MRI room.
Collapse
|
6
|
Sharma A, Kirsch CF, Aulino JM, Chakraborty S, Choudhri AF, Germano IM, Kendi AT, Kim HJ, Lee RK, Liebeskind DS, Luttrull MD, Moritani T, Murad GJ, Shah LM, Shih RY, Symko SC, Bykowski J. ACR Appropriateness Criteria® Hearing Loss and/or Vertigo. J Am Coll Radiol 2018; 15:S321-S331. [DOI: 10.1016/j.jacr.2018.09.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/07/2018] [Indexed: 12/17/2022]
|
7
|
Faramand AM, Kano H, Johnson S, Niranjan A, Flickinger JC, Lunsford LD. CT versus MR Imaging in Estimating Cochlear Radiation Dose during Gamma Knife Surgery for Vestibular Schwannomas. AJNR Am J Neuroradiol 2018; 39:1907-1911. [PMID: 30213806 DOI: 10.3174/ajnr.a5808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 07/01/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND PURPOSE Leksell stereotactic radiosurgery is an effective option for patients with vestibular schwannomas. Some centers use a combination of stereotactic CT fused with stereotactic MR imaging to achieve an optimal target definition as well as minimize the radiation dose delivered to adjacent structures that correlate with hearing outcomes. The present prospective study was designed to determine whether there is cochlear dose variability between MR imaging and CT. MATERIALS AND METHODS Fifty consecutive patients underwent stereotactic radiosurgery for vestibular schwannomas. Dose-planning was performed using high-definition fused stereotactic MR imaging and stereotactic CT images. The 3D cochlear volume was determined by delineating the cochlea on both CT and T2-weighted MR imaging. The mean radiation dose, maximum dose, and 3- and 4.20-Gy cochlear volumes were identified using standard Leksell Gamma Knife software. RESULTS The median mean radiation dose delivered to the cochlea was 3.50 Gy (range, 1.20-6.80 Gy) on CT and 3.40 Gy (range, 1-6.70 Gy) on MR imaging (concordance correlation coefficient = 0.86, r 2 = 0.9, P ≤ .001). The median maximum dose delivered to the cochlea was 6.7 Gy on CT and 6.6 Gy on MR imaging (concordance correlation coefficient = 0.89, r 2 = 0.90, P ≤ .001). Dose-volume histograms generated from CT and MR imaging demonstrated a strong level of correlation in estimating the 3- and 4.20-Gy volumes (concordance correlation coefficient = 0.81, r 2 = 0.82, P ≤ .001 and concordance correlation coefficient = 0.87, r 2 = 0.89, P ≤ .001). CONCLUSIONS Both MR imaging and CT provide similar cochlear dose parameters. Despite the reported superiority of CT in identifying bony structures, high-definition MR imaging alone is sufficient to identify the radiation doses delivered to the cochlea.
Collapse
Affiliation(s)
- A M Faramand
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - H Kano
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
| | - S Johnson
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - A Niranjan
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - J C Flickinger
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - L D Lunsford
- From the Department of Neurological Surgery and Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| |
Collapse
|