Takayuki Sakai1,2, Masami Yoneyama3, Atsuya Watanabe4,5, Daichi Murayama1, Shigehiro Ochi1, and Tosiaki Miyati6
1Radiology, Eastern Chiba Medical Center, Tonage, Japan, 2Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan, 3Philips Japan, Tokyo, Japan, 4General Medical Services, Chiba University Graduate School of Medicine, Chiba, Japan, 5Orthopaedic Surgery, Eastern Chiba Medical Center, Chiba, Japan, 6Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
1Radiology, Eastern Chiba Medical Center, Tonage, Japan, 2Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan, 3Philips Japan, Tokyo, Japan, 4General Medical Services, Chiba University Graduate School of Medicine, Chiba, Japan, 5Orthopaedic Surgery, Eastern Chiba Medical Center, Chiba, Japan, 6Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
We evaluated the usefulness of T2 mapping using VAT or SEMAC for cartilage around the knee joint that was metal-fixed after surgery. T2 mapping by Multi-echo TSE combining VAT on the cartilage near metal after surgery was effective in reducing standard deviation of T2 values and metal artifacts.
Fig.4 T2 mapping of knee cartilage near metal plate in the tibial plateau (patient 2).
ME, Multi-echo; DE, Dual-echo
Fig.3 T2 mapping of knee cartilage near metal plate in the tibial plateau (patient 1).
ME, Multi-echo; DE, Dual-echo