1
|
Mitchell B, Mu E, Currey L, Whitehead D, Walters S, Thor S, Kasherman M, Piper M. A protocol for high-resolution episcopic microscopy and 3D volumetric analyses of the adult mouse brain. Neurosci Lett 2024; 824:137675. [PMID: 38355003 DOI: 10.1016/j.neulet.2024.137675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/15/2024] [Accepted: 02/07/2024] [Indexed: 02/16/2024]
Abstract
The rapid evolution of different imaging modalities in the last two decades has enabled the investigation of the role of different genes in development and disease to be studied in a range of model organisms. However, selection of the appropriate imaging technique depends on a number of constraints, including cost, time, image resolution, size of the sample, computational complexity and processing power. Here, we use the adult mouse central nervous system to investigate whether High-Resolution Episcopic Microscopy (HREM) can provide an effective means to study the volume of individual subregions within the brain. We find that HREM can provide precise volume quantification of different structures within the mouse brain, albeit with limitations regarding the time involved for analysis and the necessity of some estimations.
Collapse
Affiliation(s)
- Benjamin Mitchell
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Erica Mu
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Laura Currey
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Darryl Whitehead
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shaun Walters
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Stefan Thor
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Maria Kasherman
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia; Katharina Gaus Light Microscopy Facility, Division of Research, Lowy Cancer Research Center C25, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Michael Piper
- The School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia; Queensland Brain Institute, University of Queensland, Brisbane, Queensland 4072, Australia.
| |
Collapse
|
2
|
Brahimi Y, Antoni D, Srour R, Wagner P, Proust F, Thiery A, Labani A, Noël G. [Skull base meningioma: Clinical and radiological efficacy based on a quantitative volumetric analysis]. Cancer Radiother 2019; 23:290-295. [PMID: 31128988 DOI: 10.1016/j.canrad.2018.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 06/23/2018] [Accepted: 11/13/2018] [Indexed: 11/17/2022]
Abstract
PURPOSE To date, no correlation has been found between clinical and radiological efficacy after irradiation of skull base meningiomas. However, the evaluation of the radiological response was most often made by questionable methods that may have underestimated the radiological effectiveness of radiotherapy. The objective of this work is to verify this hypothesis by quantitative volumetric analysis. MATERIAL AND METHODS Data from 35 patients treated with either helical tomotherapy (45.7%) or fractionated stereotactic radiotherapy (54.3%) were retrospectively analysed. These were mainly women (94%) aged 59 (43-81) with lesions mainly of the cavernous sinus (60%). There was a median of 2 (1-4) symptoms and the main symptoms were visual impairment (39%), cranial nerve deficits (23.4%) and headaches (17.2%). RESULTS Median tumour volume decreased significantly (P<0.05) from 9.6mL (0.3-36.6) to 6.8mL (0.1-26.5) after median follow-up of 44 months (24-77). Sixty-three percent of patients had an improvement of at least one symptom. In univariate analysis, clinical efficacy (P<0.05), radiotherapy technique (P<0.05), tumor topography (P<0.05) and initial tumor volume (P<0.05) were predictive factors for radiological response. In multivariate analysis, only the inverse correlation between radiological response and initial tumor volume remained significant (ρ: -0.47 95% CI -3.2 to 5.7; P<0.05). CONCLUSION The quantitative volumetric monitoring demonstrates a major radiological efficiency of radiotherapy. However, no clear correlation between clinical and radiological efficacy was found.
Collapse
Affiliation(s)
- Y Brahimi
- University radiation oncology department, centre Paul-Strauss, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - D Antoni
- University radiation oncology department, centre Paul-Strauss, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratory of radiobiology, EA 3430, Federation of translational medicine, Strasbourg (FMTS), Strasbourg university, 67000 Strasbourg, France
| | - R Srour
- Neurosurgery department, hôpital Pasteur, 39, avenue de la Liberté, 68000 Colmar, France
| | - P Wagner
- Department of radiology, centre Paul-Strauss, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - F Proust
- Neurosurgery department, CHU de Strasbourg, 1, rue Molière, 67000 Strasbourg, France
| | - A Thiery
- Epidemiology and biostatistics department, centre Paul-Strauss, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - A Labani
- Department of radiology, CHU de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France
| | - G Noël
- University radiation oncology department, centre Paul-Strauss, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratory of radiobiology, EA 3430, Federation of translational medicine, Strasbourg (FMTS), Strasbourg university, 67000 Strasbourg, France.
| |
Collapse
|
3
|
Brahimi Y, Antoni D, Srour R, Proust F, Cebula H, Labani A, Noël G. [Base of the skull meningioma: Efficacy, clinical tolerance and radiological evaluation after radiotherapy]. Cancer Radiother 2018; 22:264-286. [PMID: 29773473 DOI: 10.1016/j.canrad.2017.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 09/15/2017] [Accepted: 09/20/2017] [Indexed: 11/29/2022]
Abstract
Skull base meningioma leads to functional disturbances, which can significantly alter the quality of life. The optimal management of these lesions, whose goals are neurological preservation and tumour local control, is not yet clearly established. It is widely recognized that the goal of a radical excision should be abandoned despite the advances in the field of microsurgery of skull base lesions. Although less morbid, partial tumour excision would be associated with increased risk of local tumour recurrence. Although discussed both exclusive and adjuvant have proven to be highly successful in terms of clinical improvement and local control. Various radiation techniques have demonstrated their efficacy in the management of this pathology. However, high rates of clinical improvement are in contrast with low rates of radiological improvement. The notion of clinical and radiological dissociation appeared. However, in most of these studies, the analysis of the radiological response could be subject of legitimate criticism. This work proposes to review the local control, the efficacy and the clinical tolerance and the radiological response of the various radiation techniques for the meningioma of the base of the skull and to demonstrate the interest of quantitative volumetric analyses in the follow-up of meningioma after radiotherapy.
Collapse
Affiliation(s)
- Y Brahimi
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France
| | - D Antoni
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratoire de radiobiologie, UMR 7178 institut pluridisciplinaire Hubert-Curien (IPHC), université de Strasbourg, 67000 Strasbourg, France; CNRS, IPHC UMR 7178, 67000 Strasbourg, France
| | - R Srour
- Service de neurochirurgie, hôpital Pasteur, 39, avenue de la Liberté, 68024 Colmar cedex, France
| | - F Proust
- Service de neurochirurgie, hôpital universitaire de Strasbourg, 1, rue Molière, 67000 Strasbourg, France
| | - H Cebula
- Service de neurochirurgie, hôpital universitaire de Strasbourg, 1, rue Molière, 67000 Strasbourg, France
| | - A Labani
- Service de radiologie, hôpital universitaire de Strasbourg, 1, place de l'Hôpital, 67000 Strasbourg, France
| | - G Noël
- Département universitaire de radiothérapie, centre Paul-Strauss, Unicancer, 3, rue de la Porte-de-l'Hôpital, 67065 Strasbourg cedex, France; Laboratoire de radiobiologie, UMR 7178 institut pluridisciplinaire Hubert-Curien (IPHC), université de Strasbourg, 67000 Strasbourg, France; CNRS, IPHC UMR 7178, 67000 Strasbourg, France.
| |
Collapse
|