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Shigenaga K, Arimoto S, Kubo M, Sato T, Hiraoka Y, Takeda D, Hasegawa T, Kagawa K, Akashi M. Development of Cu application using dual-energy computed tomography for detecting medication-related osteonecrosis of the jaw. J Bone Miner Metab 2023; 41:865-876. [PMID: 37897670 DOI: 10.1007/s00774-023-01467-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 09/16/2023] [Indexed: 10/30/2023]
Abstract
INTRODUCTION The present study developed an application using dual-energy computed tomography (DECT) focused on Cu for detecting medication-related osteonecrosis of the jaw (MRONJ). MATERIALS AND METHODS First, we performed two types of phantom studies using a Cu wire syringe and pig mandible with Cu wire to detect Cu on DECT. Second, DECT examinations of 44 patients with MRONJ were performed to compare lesion and normal bone sites using single-energy CT, DECT-virtual non-calcium (VNCa), and DECT-Cu applications. Quantitative analyses of VNCa CT and CT values were performed, and a cut-off value was calculated using receiver operating characteristic analysis. Third, we compared the Cu content in the MRONJ and normal bone groups using inductively coupled plasma atomic emission spectroscopy (ICP-AES). RESULTS The material-specific differences in attenuation between the two different energies enabled the accurate separation of Cu from Ca in phantom studies. The sensitivity and specificity for single-energy CT, DECT-VNCa, and DECT-Cu applications were 97.7% and 2.3%, 86.4% and 81.8%, and 88.6% and 97.7%, respectively. Thus, VNCa CT values obtained on DECT-Cu application images showed the highest area under the curve value and maximal diagnostic efficacy in differentiating lesion sites from normal bone sites. On ICP-AES analyses, the Cu content was significantly higher in the MRONJ group than in the normal bone group. CONCLUSION DECT-Cu application demonstrated better diagnostic performance in detecting MRONJ compared with single-energy CT or DECT-VNCa.
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Affiliation(s)
- Kazuki Shigenaga
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Satomi Arimoto
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan.
| | - Masahiro Kubo
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Takumi Sato
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Yujiro Hiraoka
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Daisuke Takeda
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Takumi Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
| | - Kiyosumi Kagawa
- Center for Radiology and Radiation Oncology, Kobe University Hospital, Kobe, Japan
| | - Masaya Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-Cho, Chuo-Ku, Kobe, 650-0017, Japan
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Kobayashi E, Takahashi H, Igarashi K, Katagiri H, Haga-Tsujimura M, Ogura I, Nakahara K, Tanaka A. Prognosis of Medication-Related Osteonecrosis of the Jaw with Surgical Treatment. J HARD TISSUE BIOL 2022. [DOI: 10.2485/jhtb.31.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Eizaburo Kobayashi
- Clinic for Medication Related Osteonecrosis of the Jaw, The Nippon Dental University Niigata Hospital
| | - Haruka Takahashi
- Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Niigata
| | - Kensuke Igarashi
- Department of Dental Materials Science, The Nippon Dental University School of Life Dentistry at Niigata
| | - Hiroki Katagiri
- Department of Histology, The Nippon Dental University School of Life Dentistry at Niigata
| | - Maiko Haga-Tsujimura
- Clinic for Medication Related Osteonecrosis of the Jaw, The Nippon Dental University Niigata Hospital
| | - Ichiro Ogura
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata
| | - Ken Nakahara
- Clinic for Medication Related Osteonecrosis of the Jaw, The Nippon Dental University Niigata Hospital
| | - Akira Tanaka
- Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Niigata
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Komiya R, Wada T, Tsushima F, Sakamoto K, Ikeda T, Yamaguchi A, Harada H, Uo M. Quantitation and distribution of metallic elements in sequestra of medication-related osteonecrosis of jaw (MRONJ) using inductively coupled plasma atomic emission spectroscopy and synchrotron radiation X-ray fluorescence analysis. J Bone Miner Metab 2019; 37:676-684. [PMID: 30465092 DOI: 10.1007/s00774-018-0975-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/25/2018] [Indexed: 10/27/2022]
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a serious adverse effect of antiresorptive agents like bisphosphonates. Abnormal concentrations of various trace metallic elements contained in bone minerals have been associated with MRONJ. In this study, we focused on trace metallic elements contained in the MRONJ sequestrum; their content and distribution were compared to those in osteomyelitis and non-inflammatory bones using inductively coupled plasma atomic emission spectroscopy (ICP-AES) and synchrotron radiation X-ray fluorescence analysis (SR-XRF). On ICP-AES analyses, various trace elements (Co, Cr, Cu, Fe, K, Mg, Ni, Sb, Ti, V, Pb) were significantly more in MRONJ sequestra than non-inflammatory bones. The Cu content was significantly higher in MRONJ sequestra than osteomyelitis and non-inflammatory bones. The Cu content in MRONJ sequestra was high even after decalcification. Additionally, Cu was distributed along the trabecular structures in decalcified MRONJ specimens, as observed using SR-XRF analysis. Therefore, this study was indicative of the characteristic behavior of Cu in MRONJ.
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Affiliation(s)
- Ruri Komiya
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Takahiro Wada
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Fumihiko Tsushima
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Kei Sakamoto
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Tohru Ikeda
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Akira Yamaguchi
- Department of Oral Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
- Oral Health Science Center, Tokyo Dental College, 2-9-18, Misakicho, Chiyoda-Ku, Tokyo, 101-0061, Japan
| | - Hiroyuki Harada
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan
| | - Motohiro Uo
- Department of Advanced Biomaterials, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, Japan.
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan.
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Ikeno H, Mizoguchi T. Basics and applications of ELNES calculations. Microscopy (Oxf) 2017; 66:305-327. [PMID: 29016924 DOI: 10.1093/jmicro/dfx033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023] Open
Abstract
The electron energy loss near edge structures (ELNES) appearing in an electron energy loss spectrum obtained through transmission electron microscopy (TEM) have the potential to unravel atomic and electronic structures with sub-nano meter resolution. For this reason, TEM-ELNES has become one of the most powerful analytical methods in materials research. On the other hand, theoretical calculations are indispensable in interpreting the ELNES spectrum. Here, the basics and applications of one-particle, two-particle and multi-particle ELNES calculations are reviewed. A key point for the ELNES calculation is the proper introduction of the core-hole effect. Some applications of one-particle ELNES calculations to huge systems of more than 1000 atoms, and complex systems, such as liquids, are reported. In the two-particle calculations, the importance of the correct treatment of the excitonic interaction is demonstrated in calculating the low-energy ELNES, for example at the Li-K edge. In addition, an unusually strong excitonic interactions in the O-K edge of perovskite oxides is identified. The multi-particle calculations are necessary to reproduce the multiplet structures appearing at the transition metal L2,3-edges and rare-earth M4,5-edges. Applications to dilute magnetic semiconductors and Li-ion battery materials are presented. Furthermore, beyond the 'conventional' ELNES calculations, theoretical calculations of electron/X-ray magnetic circular dichroism (MCD) and the vibrational information in ELNES, are reported.
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Affiliation(s)
- Hidekazu Ikeno
- Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai Osaka 599-8570, Japan
- JST, PRESTO, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Teruyasu Mizoguchi
- JST, PRESTO, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
- Institute of Industrial Science, The University of Tokyo, 4-6-1, Komaba, Meguro, Tokyo 153-8505, Japan
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NAKAMURA K, HAMBA H, NAKASHIMA S, SADR A, NIKAIDO T, OIKAWA M, UO M, TAGAMI J. Effects of experimental pastes containing surface pre-reacted glass ionomer fillers on inhibition of enamel demineralization. Dent Mater J 2017; 36:482-490. [DOI: 10.4012/dmj.2016-303] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Keiki NAKAMURA
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
| | - Hidenori HAMBA
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
- Department of Endodontics and Clinical Cariology, Tokyo Dental College
| | - Syozi NAKASHIMA
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
| | - Alireza SADR
- Department of Restorative Dentistry, University of Washington School of Dentistry
| | - Toru NIKAIDO
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
| | - Masakazu OIKAWA
- National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology
| | - Motohiro UO
- Department of Advanced Biomaterials, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
| | - Junji TAGAMI
- Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU)
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First principles calculation of oxygen K edge absorption spectrum of acetic acid: Relationship between the spectrum and molecular dynamics. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.02.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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