{"title":"肌肉骨骼磁共振成像重访-磁共振成像仪的特斯拉重要吗?","authors":"Simranjeet Kaur, B. Tins, N. Winn, K. Ganga","doi":"10.4103/jajs.jajs_15_23","DOIUrl":null,"url":null,"abstract":"The field of modern medical science has been revolutionized by magnetic resonance imaging (MRI) which is the preferred modality for the investigation of a whole spectrum of musculoskeletal (MSK) conditions. MRI is a careful interplay between the temporal, spatial, and contrast resolution which forms the foundation for its improved diagnostic performance and value. There are a lot of aspects that improve the image quality and diagnostic performance, however, a higher magnet strength of 3-Tesla has the biggest impact within the current diagnostic range. However various advancements in the hardware and software parameters such as multichannel multi-phased array coils, advanced gradient systems and better post processing techniques have significantly improved image quality at 1.5T scanners as well. All the leading manufacturers offer MRI systems with a higher field strength of 3T which are increasingly being used in recent clinical settings. Scanning at 3T has the advantage of a better signal-to-noise ratio which translates into better spatial and temporal resolution with the added advantage of faster acquisition. Challenges of 3T scanning include higher magnetic susceptibility, chemical shift, and higher radiofrequency energy deposition. This is particularly important in the presence of orthopedic implants because of the two-fold increase in susceptibility artifacts resulting in significant periprosthetic signal loss, signal displacements with voids and pileups, and failed spectral fat suppression. Various modifications are needed to minimize the artifacts at 3T scanners to better utilize the improved spatial and contrast resolution achieved as a result of scanning at a higher field strength. This review discusses the technical features of scanning at 1.5 and 3T scanners along with their clinical implications and diagnostic usefulness in MSK imaging.","PeriodicalId":38088,"journal":{"name":"Journal of Arthroscopy and Joint Surgery","volume":"10 1","pages":"110 - 117"},"PeriodicalIF":0.0000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Musculoskeletal magnetic resonance imaging revisited – Does tesla of magnetic resonance imaging machines matter?\",\"authors\":\"Simranjeet Kaur, B. Tins, N. Winn, K. Ganga\",\"doi\":\"10.4103/jajs.jajs_15_23\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The field of modern medical science has been revolutionized by magnetic resonance imaging (MRI) which is the preferred modality for the investigation of a whole spectrum of musculoskeletal (MSK) conditions. MRI is a careful interplay between the temporal, spatial, and contrast resolution which forms the foundation for its improved diagnostic performance and value. There are a lot of aspects that improve the image quality and diagnostic performance, however, a higher magnet strength of 3-Tesla has the biggest impact within the current diagnostic range. However various advancements in the hardware and software parameters such as multichannel multi-phased array coils, advanced gradient systems and better post processing techniques have significantly improved image quality at 1.5T scanners as well. All the leading manufacturers offer MRI systems with a higher field strength of 3T which are increasingly being used in recent clinical settings. Scanning at 3T has the advantage of a better signal-to-noise ratio which translates into better spatial and temporal resolution with the added advantage of faster acquisition. Challenges of 3T scanning include higher magnetic susceptibility, chemical shift, and higher radiofrequency energy deposition. This is particularly important in the presence of orthopedic implants because of the two-fold increase in susceptibility artifacts resulting in significant periprosthetic signal loss, signal displacements with voids and pileups, and failed spectral fat suppression. Various modifications are needed to minimize the artifacts at 3T scanners to better utilize the improved spatial and contrast resolution achieved as a result of scanning at a higher field strength. This review discusses the technical features of scanning at 1.5 and 3T scanners along with their clinical implications and diagnostic usefulness in MSK imaging.\",\"PeriodicalId\":38088,\"journal\":{\"name\":\"Journal of Arthroscopy and Joint Surgery\",\"volume\":\"10 1\",\"pages\":\"110 - 117\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Arthroscopy and Joint Surgery\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4103/jajs.jajs_15_23\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Arthroscopy and Joint Surgery","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/jajs.jajs_15_23","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
Musculoskeletal magnetic resonance imaging revisited – Does tesla of magnetic resonance imaging machines matter?
The field of modern medical science has been revolutionized by magnetic resonance imaging (MRI) which is the preferred modality for the investigation of a whole spectrum of musculoskeletal (MSK) conditions. MRI is a careful interplay between the temporal, spatial, and contrast resolution which forms the foundation for its improved diagnostic performance and value. There are a lot of aspects that improve the image quality and diagnostic performance, however, a higher magnet strength of 3-Tesla has the biggest impact within the current diagnostic range. However various advancements in the hardware and software parameters such as multichannel multi-phased array coils, advanced gradient systems and better post processing techniques have significantly improved image quality at 1.5T scanners as well. All the leading manufacturers offer MRI systems with a higher field strength of 3T which are increasingly being used in recent clinical settings. Scanning at 3T has the advantage of a better signal-to-noise ratio which translates into better spatial and temporal resolution with the added advantage of faster acquisition. Challenges of 3T scanning include higher magnetic susceptibility, chemical shift, and higher radiofrequency energy deposition. This is particularly important in the presence of orthopedic implants because of the two-fold increase in susceptibility artifacts resulting in significant periprosthetic signal loss, signal displacements with voids and pileups, and failed spectral fat suppression. Various modifications are needed to minimize the artifacts at 3T scanners to better utilize the improved spatial and contrast resolution achieved as a result of scanning at a higher field strength. This review discusses the technical features of scanning at 1.5 and 3T scanners along with their clinical implications and diagnostic usefulness in MSK imaging.
期刊介绍:
Journal of Arthroscopy and Joint Surgery (JAJS) is committed to bring forth scientific manuscripts in the form of original research articles, current concept reviews, meta-analyses, case reports and letters to the editor. The focus of the Journal is to present wide-ranging, multi-disciplinary perspectives on the problems of the joints that are amenable with Arthroscopy and Arthroplasty. Though Arthroscopy and Arthroplasty entail surgical procedures, the Journal shall not restrict itself to these purely surgical procedures and will also encompass pharmacological, rehabilitative and physical measures that can prevent or postpone the execution of a surgical procedure. The Journal will also publish scientific research related to tissues other than joints that would ultimately have an effect on the joint function.