Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum
Mobile magnetic resonance imaging (MRI) using a car is a recent advancement in imaging technology. Specifically, a car-mounted mobile MRI system is expected to be used for medical check-ups; however, this is still in the research stage. This study demonstrated the practicality of a small car-mounted...
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MDPI AG
2022-10-01
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| Series: | Diagnostics |
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| Online Access: | https://www.mdpi.com/2075-4418/12/10/2551 |
| _version_ | 1797473784555372544 |
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| author | Kazuhiro Ikeda Yoshikazu Okamoto Takeshi Ogawa Yasuhiko Terada Michiru Kajiwara Tomoki Miyasaka Ryuhei Michinobu Yuki Hara Yuichi Yoshii Takahito Nakajima Masashi Yamazaki |
| author_facet | Kazuhiro Ikeda Yoshikazu Okamoto Takeshi Ogawa Yasuhiko Terada Michiru Kajiwara Tomoki Miyasaka Ryuhei Michinobu Yuki Hara Yuichi Yoshii Takahito Nakajima Masashi Yamazaki |
| author_sort | Kazuhiro Ikeda |
| collection | DOAJ |
| description | Mobile magnetic resonance imaging (MRI) using a car is a recent advancement in imaging technology. Specifically, a car-mounted mobile MRI system is expected to be used for medical check-ups; however, this is still in the research stage. This study demonstrated the practicality of a small car-mounted mobile MRI in on-field screening for osteochondritis dissecans (OCD) of the humeral capitellum. In the primary check-up, we screened the throwing elbows of 151 young baseball players using mobile MRI and ultrasonography. We definitively diagnosed OCD at the secondary check-up using X-ray photography and computed tomography or MRI. We investigated the sensitivity and specificity of mobile MRI and ultrasonography for OCD. Six patients were diagnosed with OCD. The sensitivity was 83.3% for mobile MRI and 66.7% for ultrasonography, with specificity of 99.3% vs. 100%, respectively. One patient was detected using ultrasonography but was missed by mobile MRI due to poor imaging quality at the first medical check-up. Following this false-negative case, we replaced a damaged radio frequency coil to improve the image quality, and the mobile MRI could detect all subsequent OCD cases. Two patients were diagnosed by mobile MRI only; ultrasonography missed cases lacking subchondral bone irregularity, such as a healing case, and an early-stage case. Mobile MRI could screen for OCD from the very early stages through the healing process and is therefore a practical tool for on-field screening. |
| first_indexed | 2024-03-09T20:21:21Z |
| format | Article |
| id | doaj.art-675f8cda410245aca9a27758caecb29b |
| institution | Directory Open Access Journal |
| issn | 2075-4418 |
| language | English |
| last_indexed | 2024-03-09T20:21:21Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diagnostics |
| spelling | doaj.art-675f8cda410245aca9a27758caecb29b2023-11-23T23:47:15ZengMDPI AGDiagnostics2075-44182022-10-011210255110.3390/diagnostics12102551Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral CapitellumKazuhiro Ikeda0Yoshikazu Okamoto1Takeshi Ogawa2Yasuhiko Terada3Michiru Kajiwara4Tomoki Miyasaka5Ryuhei Michinobu6Yuki Hara7Yuichi Yoshii8Takahito Nakajima9Masashi Yamazaki10Department of Orthopedic Surgery, Kikkoman General Hospital, Noda 278-0005, Chiba, JapanInstitute of Clinical Medicine, Department of Diagnostic and Interventional Radiology, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanDepartment of Orthopedic Surgery, Mito Medical Center, Ibaraki 311-3193, Ibaraki, JapanInstitute of Applied Physics, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanInstitute of Applied Physics, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanInstitute of Applied Physics, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanDepartment of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanDepartment of Orthopedic Surgery, National Center of Neurology and Psychiatry, Kodaira 187-8551, Tokyo, JapanDepartment of Orthopedic Surgery, Tokyo Medical University Ibaraki Medical Center, Ami 300-0395, Ibaraki, JapanInstitute of Clinical Medicine, Department of Diagnostic and Interventional Radiology, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanDepartment of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8577, Ibaraki, JapanMobile magnetic resonance imaging (MRI) using a car is a recent advancement in imaging technology. Specifically, a car-mounted mobile MRI system is expected to be used for medical check-ups; however, this is still in the research stage. This study demonstrated the practicality of a small car-mounted mobile MRI in on-field screening for osteochondritis dissecans (OCD) of the humeral capitellum. In the primary check-up, we screened the throwing elbows of 151 young baseball players using mobile MRI and ultrasonography. We definitively diagnosed OCD at the secondary check-up using X-ray photography and computed tomography or MRI. We investigated the sensitivity and specificity of mobile MRI and ultrasonography for OCD. Six patients were diagnosed with OCD. The sensitivity was 83.3% for mobile MRI and 66.7% for ultrasonography, with specificity of 99.3% vs. 100%, respectively. One patient was detected using ultrasonography but was missed by mobile MRI due to poor imaging quality at the first medical check-up. Following this false-negative case, we replaced a damaged radio frequency coil to improve the image quality, and the mobile MRI could detect all subsequent OCD cases. Two patients were diagnosed by mobile MRI only; ultrasonography missed cases lacking subchondral bone irregularity, such as a healing case, and an early-stage case. Mobile MRI could screen for OCD from the very early stages through the healing process and is therefore a practical tool for on-field screening.https://www.mdpi.com/2075-4418/12/10/2551magnetic resonance imagingmobileportableosteochondritis dissecansOCDbaseball |
| spellingShingle | Kazuhiro Ikeda Yoshikazu Okamoto Takeshi Ogawa Yasuhiko Terada Michiru Kajiwara Tomoki Miyasaka Ryuhei Michinobu Yuki Hara Yuichi Yoshii Takahito Nakajima Masashi Yamazaki Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum Diagnostics magnetic resonance imaging mobile portable osteochondritis dissecans OCD baseball |
| title | Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum |
| title_full | Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum |
| title_fullStr | Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum |
| title_full_unstemmed | Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum |
| title_short | Use of a Small Car-Mounted Magnetic Resonance Imaging System for On-Field Screening for Osteochondritis Dissecans of the Humeral Capitellum |
| title_sort | use of a small car mounted magnetic resonance imaging system for on field screening for osteochondritis dissecans of the humeral capitellum |
| topic | magnetic resonance imaging mobile portable osteochondritis dissecans OCD baseball |
| url | https://www.mdpi.com/2075-4418/12/10/2551 |
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