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Crichton WA, Kieffer J, Wattecamps P, Valls V, Berruyer G, Ruat M, Favre-Nicolin V. Correction and integration of solid-angle data from the azimuthally resolving 2D detector at ID06-LVP, ESRF. J Synchrotron Radiat 2023; 30:1149-1155. [PMID: 37850561 PMCID: PMC10624032 DOI: 10.1107/s1600577523008020] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/14/2023] [Indexed: 10/19/2023]
Abstract
The unique diffraction geometry of ESRF beamline ID06-LVP offers continuous static 2D or azimuthally resolving data collections over all accessible solid angles available to the tooling geometry. The system is built around a rotating custom-built Pilatus3 CdTe 900k-W detector from Dectris, in a configuration equivalent to three butted 300k devices. As a non-standard geometry, here the method of alignment, correction and subsequent integration for any data collected over all solid angles accessible, or over any azimuthal range contained therein, are provided and illustrated by parameterizing and extending existing pyFAI routines. At 1° integrated intervals, and typical distances (2.0 m), the system covers an area of near 2.5 m2 (100 Mpx square equivalent), to 0.65 Å resolution, at 53 keV from a total dataset of some 312 Mpx. Standard FWHMs of SRM660a LaB6 vary from 0.005° to 0.01°, depending on beam size, energy and sample dimensions, and are sampled at an elevated rate. The azimuthal range per static frame ranges from <20° to ∼1° over the full range of the detector surface. A full 2θ-intensity data collection at static azimuth takes 1-3 s typically, and can be reduced to ms-1 rates for measurements requiring time-rate determination. A full solid-angle collection can be completed in a minute. Sample detector distances are accessible from 1.6 m to 4.0 m.
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Affiliation(s)
- Wilson A. Crichton
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Jérôme Kieffer
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Pierre Wattecamps
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Valentin Valls
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Gilles Berruyer
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Marie Ruat
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
| | - Vincent Favre-Nicolin
- ESRF – The European Synchrotron, 71 Avenue des Martyrs, Grenoble, Rhône-Alpes, France
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Sévelin-Radiguet N, Torchio R, Berruyer G, Gonzalez H, Pasternak S, Perrin F, Occelli F, Pépin C, Sollier A, Kraus D, Schuster A, Voigt K, Zhang M, Amouretti A, Boury A, Fiquet G, Guyot F, Harmand M, Borri M, Groves J, Helsby W, Branly S, Norby J, Pascarelli S, Mathon O. Towards a dynamic compression facility at the ESRF. J Synchrotron Radiat 2022; 29:167-179. [PMID: 34985434 PMCID: PMC8733990 DOI: 10.1107/s1600577521011632] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 11/03/2021] [Indexed: 06/14/2023]
Abstract
Results of the 2018 commissioning and experimental campaigns of the new High Power Laser Facility on the Energy-dispersive X-ray Absorption Spectroscopy (ED-XAS) beamline ID24 at the ESRF are presented. The front-end of the future laser, delivering 15 J in 10 ns, was interfaced to the beamline. Laser-driven dynamic compression experiments were performed on iron oxides, iron alloys and bismuth probed by online time-resolved XAS.
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Affiliation(s)
- Nicolas Sévelin-Radiguet
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Raffaella Torchio
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Gilles Berruyer
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Hervé Gonzalez
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Sébastien Pasternak
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Florian Perrin
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Florent Occelli
- CEA, DAM, DIF, 91297 Arpajon Cedex, France
- Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - Charles Pépin
- CEA, DAM, DIF, 91297 Arpajon Cedex, France
- Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - Arnaud Sollier
- CEA, DAM, DIF, 91297 Arpajon Cedex, France
- Université Paris-Saclay, CEA, Laboratoire Matière en Conditions Extrêmes, 91680 Bruyères-le-Châtel, France
| | - Dominik Kraus
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Institut für Physik, Universität Rostock, Albert-Einstein-Strasse 23–24, 18059 Rostock, Germany
| | - Anja Schuster
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Technische Universität Dresden, 01069 Dresden, Germany
| | - Katja Voigt
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Technische Universität Dresden, 01069 Dresden, Germany
| | - Min Zhang
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Institutes of Physical Science and Information Technology, Anhui University, 230601 Hefei, People’s Republic of China
| | - Alexis Amouretti
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 – Sorbonne Université/CNRS/MNHN/IRD, 75252 Paris, France
| | - Antoine Boury
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 – Sorbonne Université/CNRS/MNHN/IRD, 75252 Paris, France
| | - Guillaume Fiquet
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 – Sorbonne Université/CNRS/MNHN/IRD, 75252 Paris, France
| | - François Guyot
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 – Sorbonne Université/CNRS/MNHN/IRD, 75252 Paris, France
| | - Marion Harmand
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UMR 7590 – Sorbonne Université/CNRS/MNHN/IRD, 75252 Paris, France
| | | | - Janet Groves
- STFC, Daresbury Laboratory, Warrington, United Kingdom
| | | | - Stéphane Branly
- Amplitude Technologies, 2–4 Rue du Bois Chaland, CE 2926, 91029 Évry, France
| | - James Norby
- Amplitude Technologies, 2–4 Rue du Bois Chaland, CE 2926, 91029 Évry, France
| | - Sakura Pascarelli
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Olivier Mathon
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
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Agostini G, Meira D, Monte M, Vitoux H, Iglesias-Juez A, Fernández-García M, Mathon O, Meunier F, Berruyer G, Perrin F, Pasternak S, Mairs T, Pascarelli S, Gorges B. XAS/DRIFTS/MS spectroscopy for time-resolved operando investigations at high temperature. J Synchrotron Radiat 2018; 25:1745-1752. [PMID: 30407185 PMCID: PMC6544193 DOI: 10.1107/s160057751801305x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/14/2018] [Indexed: 05/28/2023]
Abstract
The combination of complementary techniques in the characterization of catalysts under working conditions is a very powerful tool for an accurate and in-depth comprehension of the system investigated. In particular, X-ray absorption spectroscopy (XAS) coupled with diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and mass spectroscopy (MS) is a powerful combination since XAS characterizes the main elements of the catalytic system (selecting the absorption edge) and DRIFTS monitors surface adsorbates while MS enables product identification and quantification. In the present manuscript, a new reactor cell and an experimental setup optimized to perform time-resolved experiments on heterogeneous catalysts under working conditions are reported. A key feature of this setup is the possibility to work at high temperature and pressure, with a small cell dead volume. To demonstrate these capabilities, performance tests with and without X-rays are performed. The effective temperature at the sample surface, the speed to purge the gas volume inside the cell and catalytic activity have been evaluated to demonstrate the reliability and usefulness of the cell. The setup capability of combining XAS, DRIFTS and MS spectroscopies is demonstrated in a time-resolved experiment, following the reduction of NO by Rh nanoparticles supported on alumina.
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Affiliation(s)
- G. Agostini
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - D. Meira
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - M. Monte
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - H. Vitoux
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - A. Iglesias-Juez
- Instituto de Catalisis y Petroleoquimica (ICP-CSIC), Marie Curie 2, Cantoblanco, 28049 Madrid, Spain
| | - M. Fernández-García
- Instituto de Catalisis y Petroleoquimica (ICP-CSIC), Marie Curie 2, Cantoblanco, 28049 Madrid, Spain
| | - O. Mathon
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - F. Meunier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, 2 Avenue Albert Einstein, 69626 Villeurbanne, France
| | - G. Berruyer
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - F. Perrin
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - S. Pasternak
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - T. Mairs
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - S. Pascarelli
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - B. Gorges
- ERSF – European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
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4
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Nemoz C, Kibleur A, Hyacinthe JN, Berruyer G, Brochard T, Bräuer-Krisch E, Le Duc G, Brun E, Elleaume H, Serduc R. In vivo pink-beam imaging and fast alignment procedure for rat brain tumor radiation therapy. J Synchrotron Radiat 2016; 23:339-343. [PMID: 26698083 DOI: 10.1107/s1600577515018561] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/04/2015] [Indexed: 06/05/2023]
Abstract
A fast positioning method for brain tumor microbeam irradiations for preclinical studies at third-generation X-ray sources is described. The three-dimensional alignment of the animals relative to the X-ray beam was based on the X-ray tomography multi-slices after iodine infusion. This method used pink-beam imaging produced by the ID17 wiggler. A graphical user interface has been developed in order to define the irradiation parameters: field width, height, number of angles and X-ray dose. This study is the first reporting an image guided method for soft tissue synchrotron radiotherapy. It allowed microbeam radiation therapy irradiation fields to be reduced by a factor of ∼20 compared with previous studies. It permitted more targeted, more efficient brain tumor microbeam treatments and reduces normal brain toxicity of the radiation treatment.
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Affiliation(s)
- Christian Nemoz
- European Synchrotron Radiation Facility, 38043 Grenoble, France
| | | | - Jean Noël Hyacinthe
- School of Health Sciences - Geneva, University of Applied Sciences and Arts Western, Switzerland
| | - Gilles Berruyer
- European Synchrotron Radiation Facility, 38043 Grenoble, France
| | | | | | | | - Emmanuel Brun
- Department of Physics, Ludwig-Maximilians-University, Garching 85748, Germany
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5
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Pascarelli S, Mathon O, Mairs T, Kantor I, Agostini G, Strohm C, Pasternak S, Perrin F, Berruyer G, Chappelet P, Clavel C, Dominguez MC. The Time-resolved and Extreme-conditions XAS (TEXAS) facility at the European Synchrotron Radiation Facility: the energy-dispersive X-ray absorption spectroscopy beamline ID24. J Synchrotron Radiat 2016; 23:353-68. [PMID: 26698085 PMCID: PMC5297599 DOI: 10.1107/s160057751501783x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/23/2015] [Indexed: 05/27/2023]
Abstract
The European Synchrotron Radiation Facility has recently made available to the user community a facility totally dedicated to Time-resolved and Extreme-conditions X-ray Absorption Spectroscopy--TEXAS. Based on an upgrade of the former energy-dispersive XAS beamline ID24, it provides a unique experimental tool combining unprecedented brilliance (up to 10(14) photons s(-1) on a 4 µm × 4 µm FWHM spot) and detection speed for a full EXAFS spectrum (100 ps per spectrum). The science mission includes studies of processes down to the nanosecond timescale, and investigations of matter at extreme pressure (500 GPa), temperature (10000 K) and magnetic field (30 T). The core activities of the beamline are centered on new experiments dedicated to the investigation of extreme states of matter that can be maintained only for very short periods of time. Here the infrastructure, optical scheme, detection systems and sample environments used to enable the mission-critical performance are described, and examples of first results on the investigation of the electronic and local structure in melts at pressure and temperature conditions relevant to the Earth's interior and in laser-shocked matter are given.
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Affiliation(s)
- S. Pascarelli
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - O. Mathon
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - T. Mairs
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - I. Kantor
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - G. Agostini
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - C. Strohm
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
- Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - S. Pasternak
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - F. Perrin
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - G. Berruyer
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - P. Chappelet
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - C. Clavel
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - M. C. Dominguez
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
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6
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Bräuer-Krisch E, Nemoz C, Brochard T, Berruyer G, Renier M, Pouyatos B, Serduc R. The preclinical set-up at the ID17 biomedical beamline to achieve high local dose deposition using interlaced microbeams. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/425/2/022001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Salomé M, Cotte M, Baker R, Barrett R, Benseny-Cases N, Berruyer G, Bugnazet D, Castillo-Michel H, Cornu C, Fayard B, Gagliardini E, Hino R, Morse J, Papillon E, Pouyet E, Rivard C, Solé VA, Susini J, Veronesi G. The ID21 Scanning X-ray Microscope at ESRF. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/425/18/182004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Fayard B, Pouyet E, Berruyer G, Bugnazet D, Cornu C, Cotte M, Andrade VD, Chiaro FD, Hignette O, Kieffer J, Martin T, Papillon E, Salomé M, Sole VA. The new ID21 XANES full-field end-station at ESRF. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/425/19/192001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Serduc R, Berruyer G, Brochard T, Renier M, Nemoz C. In vivo pink-beam imaging and fast alignment procedure for rat brain lesion microbeam radiation therapy. J Synchrotron Radiat 2010; 17:325-331. [PMID: 20400830 PMCID: PMC3025656 DOI: 10.1107/s0909049510006667] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 02/21/2010] [Indexed: 05/29/2023]
Abstract
A fast 50 microm-accuracy alignment procedure has been developed for the radiosurgery of brain lesions in rats, using microbeam radiation therapy. In vivo imaging was performed using the pink beam (35-60 keV) produced by the ID17 wiggler at the ESRF opened at 120 mm and filtered. A graphical user interface has been developed in order to define the irradiation field size and to position the target with respect to the skull structures observed in X-ray images. The method proposed here allows tremendous time saving by skipping the swap from white beam to monochromatic beam and vice versa. To validate the concept, the somatosensory cortex or thalamus of GAERS rats were irradiated under several ports using this alignment procedure. The magnetic resonance images acquired after contrast agent injection showed that the irradiations were selectively performed in these two expected brain regions. Image-guided microbeam irradiations have therefore been realised for the first time ever, and, thanks to this new development, the ID17 biomedical beamline provides a major tool allowing brain radiosurgery trials on animal patients.
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Affiliation(s)
- Raphaël Serduc
- European Synchrotron Radiation Facility, Grenoble, France.
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Bräuer-Krisch E, Requardt H, Brochard T, Berruyer G, Renier M, Laissue JA, Bravin A. New technology enables high precision multislit collimators for microbeam radiation therapy. Rev Sci Instrum 2009; 80:074301. [PMID: 19655968 DOI: 10.1063/1.3170035] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
During the past decade microbeam radiation therapy has evolved from preclinical studies to a stage in which clinical trials can be planned, using spatially fractionated, highly collimated and high intensity beams like those generated at the x-ray ID17 beamline of the European Synchrotron Radiation Facility. The production of such microbeams typically between 25 and 100 microm full width at half maximum (FWHM) values and 100-400 microm center-to-center (c-t-c) spacings requires a multislit collimator either with fixed or adjustable microbeam width. The mechanical regularity of such devices is the most important property required to produce an array of identical microbeams. That ensures treatment reproducibility and reliable use of Monte Carlo-based treatment planning systems. New high precision wire cutting techniques allow the fabrication of these collimators made of tungsten carbide. We present a variable slit width collimator as well as a single slit device with a fixed setting of 50 microm FWHM and 400 microm c-t-c, both able to cover irradiation fields of 50 mm width, deemed to meet clinical requirements. Important improvements have reduced the standard deviation of 5.5 microm to less than 1 microm for a nominal FWHM value of 25 microm. The specifications of both devices, the methods used to measure these characteristics, and the results are presented.
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Affiliation(s)
- E Bräuer-Krisch
- European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble, France.
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Renier M, Brochard T, Nemoz C, Requardt H, Bräuer E, Esteve F, Balosso J, Suortti P, Baruchel J, Elleaume H, Berruyer G, Berkvens P, Bravin A. The radiotherapy clinical trials projects at the ESRF: Technical aspects. Eur J Radiol 2008; 68:S147-50. [DOI: 10.1016/j.ejrad.2008.04.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2008] [Accepted: 04/28/2008] [Indexed: 10/21/2022]
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12
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Bertrand B, Estève F, Elleaume H, Nemoz C, Fiedler S, Bravin A, Berruyer G, Brochard T, Renier M, Machecourt J, Thomlinson W, Le Bas JF. Comparison of synchrotron radiation angiography with conventional angiography for the diagnosis of in-stent restenosis after percutaneous transluminal coronary angioplasty. Eur Heart J 2005; 26:1284-91. [PMID: 15734769 DOI: 10.1093/eurheartj/ehi165] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS Synchrotron radiation angiography (SRA) is a novel tool for minimally invasive coronary artery imaging. The method uses subtraction of two images produced at energies bracketing the iodine K-edge after intravenous infusion of iodinated contrast agent. We investigated the accuracy of SRA for detecting in-stent restenosis (ISR). METHODS AND RESULTS We recruited 57 men, 4-6 months after successful PTCA. We visualized the right coronary artery (RCA) in 27 patients with 36 stented segments [12 segments with ISR>50% by quantitative coronary angiography (QCA)], and the left anterior descending artery (LAD) in 30 patients with 37 stented segments (10 ISR). SRA and QCA were performed within 2 days of each other. Two experienced observers unaware of QCA data evaluated the SRA results. Image quality was good or excellent in most patients. Global sensitivity was 64%, specificity was 95%, and positive and negative predictive values were approximately 85%. Inter-observer kappa concordance coefficient was 0.86. False negatives involved short eccentric lesions and superimposed segments, most frequently of the LAD. False positives occurred in intermediate stenoses slightly overestimated by SRA. CONCLUSION In men, this minimally invasive approach, using small radiation doses, detects significant ISR in the RCA, but the LAD poses difficulties because of superimposition with others structures.
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13
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Adam JF, Nemoz C, Bravin A, Fiedler S, Bayat S, Monfraix S, Berruyer G, Charvet AM, Le Bas JF, Elleaume H, Estève F. High-resolution blood-brain barrier permeability and blood volume imaging using quantitative synchrotron radiation computed tomography: study on an F98 rat brain glioma. J Cereb Blood Flow Metab 2005; 25:145-53. [PMID: 15678122 DOI: 10.1038/sj.jcbfm.9600017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The authors previously provided evidence of synchrotron radiation computed tomography (SRCT) efficacy for quantitative in vivo brain perfusion measurements using monochromatic X-ray beams. However, this technique was limited for small-animal studies by partial volume effects. In this paper, high-resolution absolute cerebral blood volume and blood-brain barrier permeability coefficient measurements were obtained on a rat glioma model using SRCT and a CCD camera (47x47 microm2 pixel size). This is the first report of in vivo high-resolution brain vasculature parameter assessment. The work gives interesting perspectives to quantify brain hemodynamic changes accurately in healthy and pathological small animals.
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Affiliation(s)
- Jean-François Adam
- Unité INSERM 647 RSRM (Rayonnement Synchrotron et Recherche Médicale), ID17-ESRF, Grenoble, France
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14
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Monfraix S, Bayat S, Porra L, Berruyer G, Nemoz C, Thomlinson W, Suortti P, Sovijärvi ARA. Quantitative measurement of regional lung gas volume by synchrotron radiation computed tomography. Phys Med Biol 2004; 50:1-11. [PMID: 15715418 DOI: 10.1088/0031-9155/50/1/001] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aim of this study was to assess the feasibility of a novel respiration-gated spiral synchrotron radiation computed tomography (SRCT) technique for direct quantification of absolute regional lung volumes, using stable xenon (Xe) gas as an inhaled indicator. Spiral SRCT with K-edge subtraction using two monochromatic x-ray beams was used to visualize and directly quantify inhaled Xe concentrations and airspace volumes in three-dimensional (3D) reconstructed lung images. Volume measurements were validated using a hollow Xe-filled phantom. Spiral images spanning 49 mm in lung height were acquired following 60 breaths of an 80% Xe-20% O2 gas mixture, in two anaesthetized and mechanically ventilated rabbits at baseline and after histamine aerosol inhalation. Volumetric images of 20 mm lung sections were obtained at functional residual capacity (FRC) and at end-inspiration. 3D images showed large patchy filling defects in peripheral airways and alveoli following histamine provocation. Local specific lung compliance was calculated based on FRC/end-inspiration images in normal lung. This study demonstrates spiral SRCT as a new technique for direct determination of regional lung volume, offering possibilities for non-invasive investigation of regional lung function and mechanics, with a uniquely high spatial resolution. An example of non-uniform volume distribution in rabbit lung following histamine inhalation is presented.
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Affiliation(s)
- Sylvie Monfraix
- European Synchrotron Radiation Facility, F-38043 Grenoble, France
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15
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Porra L, Monfraix S, Berruyer G, Le Duc G, Nemoz C, Thomlinson W, Suortti P, Sovijärvi ARA, Bayat S. Effect of tidal volume on distribution of ventilation assessed by synchrotron radiation CT in rabbit. J Appl Physiol (1985) 2004; 96:1899-908. [PMID: 14966018 DOI: 10.1152/japplphysiol.00866.2003] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A respiration-gated synchrotron radiation computed tomography (SRCT) technique, which allows visualization and direct quantification of inhaled stable xenon gas, was used to study the effect of tidal volume (Vt) on regional lung ventilation. High-resolution maps (pixel size 0.35 x 0.35 mm) of local washin time constants (tau) and regional specific ventilation were obtained in five anesthetized, paralyzed, and mechanically ventilated rabbits in upright body position at the fourth, sixth, and eighth dorsal vertebral levels with a Vt from 4.9 +/- 0.3 to 7.9 +/- 0.4 ml/kg (means +/- SE). Increasing Vt without an increase in minute ventilation resulted in a proportional increase of mean specific ventilation up to 65% in all studied lung levels and reduced the scattering of washin tau values. The tau values had log-normal distributions. The results indicate that an increase in Vt decreases nonuniformity of intraregional ventilatory gas exchange. The findings suggest that (SRCT) provides a new quantitative tool with high spatial discrimination ability for assessment of changes in peripheral pulmonary gas distribution during mechanical ventilation.
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Affiliation(s)
- L Porra
- Department of Physical Sciences, University of Helsinki, Helsinki FIN 00014, Finland.
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16
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Bayat S, Le Duc G, Porra L, Berruyer G, Nemoz C, Monfraix S, Fiedler S, Thomlinson W, Suortti P, Standertskjöld-Nordenstam CG, Sovijärvi AR. Quantitative functional lung imaging with synchrotron radiation using inhaled xenon as contrast agent. Phys Med Biol 2001; 46:3287-99. [PMID: 11768506 DOI: 10.1088/0031-9155/46/12/315] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Small airways play a key role in the distribution of ventilation and in the matching of ventilation to perfusion. The purpose of this study was to introduce an imaging method that allows measurement of regional lung ventilation and evaluation of the function of airways with a small diameter. The experiments were performed at the Medical Beamline of the European Synchrotron Radiation Facility. Monochromatic synchrotron radiation beams were used to obtain quantitative respiration-gated images of lungs and airways in two anaesthetized and mechanically ventilated rabbits using inhaled stable xenon (Xe) gas as a contrast agent. Two simultaneous images were acquired at two different energies, above and below the K-edge of Xe. Logarithmic subtraction of the two images yields absolute Xe concentrations. This technique is known as K-edge subtraction (KES) radiography. Two-dimensional planar and CT images were obtained showing spatial distribution of Xe concentrations within the airspaces, as well as the dynamics of filling with Xe. Bronchi down to 1 mm in diameter were visible both in the subtraction radiographs and in tomographic images. Absolute concentrations of Xe gas were calculated within the tube carrying the inhaled gas mixture, small and large bronchi, and lung tissue. Local time constants of ventilation with Xe were obtained by following the evolution of gas concentration in sequential computed tomography images. The results of this first animal study indicate that KES imaging of lungs with Xe gas as a contrast agent has great potential in studies of the distribution of ventilation within the lungs and of airway function, including airways with a small diameter.
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Affiliation(s)
- S Bayat
- TIMC-PRETA, UMR CNRS 5525, Laboratoire de Physiologie, Université Joseph Fourier, Faculté de Médecine, Grenoble, France.
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17
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Elleaume H, Fiedler S, Estève F, Bertrand B, Charvet AM, Berkvens P, Berruyer G, Brochard T, Le Duc G, Nemoz C, Renier M, Suortti P, Thomlinson W, Le Bas JF. First human transvenous coronary angiography at the European Synchrotron Radiation Facility. Phys Med Biol 2000; 45:L39-43. [PMID: 11008947 DOI: 10.1088/0031-9155/45/9/102] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The first operation of the European Synchrotron Radiation Facility (ESRF) medical beamline is reported in this paper. The goal of the angiography project is to develop a reduced risk imaging technique, which can be used to follow up patients after coronary intervention. After the intravenous injection of a contrast agent (iodine) two images are produced with monochromatic beams, bracketing the iodine K-edge. The logarithmic subtraction of the two measurements results in an iodine enhanced image, which can be precisely quantified. A research protocol has been designed to evaluate the performances of this method in comparison with the conventional technique. Patients included in the protocol have previously undergone angioplasty. If a re-stenosis is suspected, the patient is imaged both at the ESRF and at the hospital with the conventional technique, within the next few days. This paper reports the results obtained with the first patients. To date, eight patients have been imaged and excellent image quality was obtained.
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Affiliation(s)
- H Elleaume
- Equipe RSRM, unité IRM Centre Hospitalier Universitaire, Grenoble, France
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18
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Thomlinson W, Berkvens P, Berruyer G, Bertrand B, Blattmann H, Brauer-Krisch E, Brochard T, Charvet AM, Corde S, Dimichiel M, Elleaume H, Estève F, Fiedler S, Laissue JA, Le Bas JE, Le Duc G, Lyubimova N, Nemoz C, Renier M, Slatkin DN, Spanne P, Suortti P. Research at the European Synchrotron Radiation Facility medical beamline. Cell Mol Biol (Noisy-le-grand) 2000; 46:1053-63. [PMID: 10976863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
The application of synchrotron radiation in medical research has become a mature field of research at synchrotron facilities worldwide. In the relatively short time that synchrotrons have been available to the scientific community, their characteristic beams of UV and X-ray radiation have been applied to virtually all areas of medical science which use ionizing radiation. The ability to tune intense monochromatic beams over wide energy ranges differentiates these sources from standard clinical and research tools. At the European Synchrotron Radiation Facility (Grenoble, France), a major research facility is operational on an advanced wiggler radiation beamport, ID17. The beamport is designed to carry out a broad range of research ranging from cell radiation biology to in vivo human studies. Medical imaging programs at ID17 include transvenous coronary angiography, computed tomography, mammography and bronchography. In addition, a major research program on microbeam radiation therapy is progressing. This paper will present a very brief overview of the beamline and the imaging and therapy programs.
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Affiliation(s)
- W Thomlinson
- European Synchrotron Radiation Facility, Grenoble, France.
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19
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Elleaume H, Charvet AM, Le Duc G, Estève F, Bertrand B, Corde S, Farion R, Lefaix JL, Leplat JJ, Berkvens P, Berruyer G, Brochard T, Dabin Y, Draperi A, Fiedler S, Nemoz C, Perez M, Renier M, Suortti P, Thomlinson W, Le Bas JF. In vivo K-edge imaging with synchrotron radiation. Cell Mol Biol (Noisy-le-grand) 2000; 46:1065-75. [PMID: 10976864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
We present in this paper two imaging techniques using contrast agents assessed with in vivo experiments. Both methods are based on the same physical principle, and were implemented at the European Synchrotron Radiation Facility medical beamline. The first one is intravenous coronary angiography using synchrotron radiation X-rays. This imaging technique has been planned for human studies in the near future. We describe the first experiments that were carried out with pigs at the ESRF. The second imaging mode is computed tomography using synchrotron radiation on rats bearing brain tumors. Owing to synchrotron radiation physical properties, these new imaging methods provide additional information compared to conventional techniques. After infusion of the contrast agent, it is possible to derive from the images the concentration of the contrast agent in the tumor area for the computed tomography and in any visible vessel for the angiography method.
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Affiliation(s)
- H Elleaume
- Equipe d'Accueil Rayonnement Synchrotron et Recherche Médicale, Unité IRM, CHU, Grenoble, France.
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Artzner F, Albouy PA, Berruyer G, Veber M, Mérienne C, Robert F. 4,4'-[1,6-Hexanediylbis(oxy)]bisbenzaldehyde. Acta Crystallogr C 1996. [DOI: 10.1107/s0108270196009973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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