3D dynamic pituitary MR imaging with CAIPIRINHA: initial experience and comparison with 2D dynamic MR imaging

Yasutaka Fushimi, Tomohisa Okada, Mitsunori Kanagaki, Akira Yamamoto, Yumiko Kanda, Ryo Sakamoto, Masato Hojo, Jun C. Takahashi, Susumu Miyamoto, Kaori Togashi

Research output: Contribution to journalArticle

Abstract

OBJECTIVES: To evaluate the validity of 3D dynamic pituitary MR imaging with controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA), with special emphasis on demarcation of pituitary posterior lobe and stalk.

METHODS: Participants comprised 32 patients who underwent dynamic pituitary MR imaging due to pituitary or parasellar lesions. 3D dynamic MR with CAIPIRINHA was performed at 3T with 20-s-interval, precontrast, 1st to 5th dynamic images. Normalized values and enhanced ratios (dynamic postcontrast image values divided by precontrast ones) were compared between 3D and 2D dynamic MR imaging for patients with visual identification of posterior lobe and stalk.

RESULTS: In 3D, stalk was identified in 29 patients and unidentified in 3, and posterior lobe was identified in 28 and unidentified in 4. In 2D, stalk was identified in 26 patients and unidentified in 6 patients, and posterior lobe was identified in 15 and unidentified in 17. Normalized values of pituitary posterior lobe and stalk were higher in 3D than 2D (P

CONCLUSIONS: 3D dynamic pituitary MR provided better identification and higher normalized values of pituitary posterior lobe and stalk than 2D.

Original languageEnglish (US)
Pages (from-to)1900-1906
Number of pages7
JournalEuropean Journal of Radiology
Volume83
Issue number10
DOIs
StatePublished - Oct 1 2014
Externally publishedYes

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Keywords

  • Controlled aliasing in parallel imaging results in higher acceleration
  • Dynamic pituitary MR
  • MR
  • Skull base
  • Three-dimensional imaging

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Fushimi, Y., Okada, T., Kanagaki, M., Yamamoto, A., Kanda, Y., Sakamoto, R., Hojo, M., Takahashi, J. C., Miyamoto, S., & Togashi, K. (2014). 3D dynamic pituitary MR imaging with CAIPIRINHA: initial experience and comparison with 2D dynamic MR imaging. European Journal of Radiology, 83(10), 1900-1906. https://doi.org/10.1016/j.ejrad.2014.06.018