About the Authors

Hayato Tomita

Contributed equally to this work with: Hayato Tomita, Tsuneo Yamashiro

m04149@yahoo.co.jp

Affiliation Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan

Tsuneo Yamashiro

Contributed equally to this work with: Hayato Tomita, Tsuneo Yamashiro

Affiliations Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan, Department of Radiology, Graduate School of Medical Science, University of the Ryukyus, Nishihara, Okinawa, Japan

Shin Matsuoka

Affiliation Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan

Shoichiro Matsushita

Affiliation Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan

Yasuyuki Kurihara

Affiliation Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan

Yasuo Nakajima

Affiliation Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HT TY. Performed the experiments: HT. Analyzed the data: HT TY. Wrote the paper: HT. Manuscript editing: HT TY S. Matsuoka S. Matsushita YK YN.