Instrumentation for rapid MR image synthesis

J. N. Lee, Stephen J Riederer, S. A. Bobman, F. Farzaneh, H. Z. Wang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

MR image synthesis has previously been developed as a means of retrospectively optimizing contrast of arbitrary materials in MR images. The first step of this process is to form computed N(H), T1, and T2 images from source images acquired at a variety of echo delay and repetition times. The second step is to take these computed images, along with operator-selected timing parameters, and mathematically generate a synthesized image. Computation is carried out pixel by pixel according to the equation describing the chosen pulse sequence. This paper presents a study of design considerations for a digital image processor capable of rapidly performing the second step, the actual synthesis. In this work the computations inherent to image synthesis are identified, and the feasibility of performing them in highspeed hardware examined. An analysis of the imprecision due to bit-limited calculations shows that an error bound of 0.4% is possible with a 16-bit processor design. A method is described which uses a commercially available image processor by which images can be synthesized according to any of the standard pulse sequences in less than 600 ms.

Original languageEnglish (US)
Pages (from-to)33-43
Number of pages11
JournalMagnetic Resonance in Medicine
Volume3
Issue number1
StatePublished - 1986
Externally publishedYes

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ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Lee, J. N., Riederer, S. J., Bobman, S. A., Farzaneh, F., & Wang, H. Z. (1986). Instrumentation for rapid MR image synthesis. Magnetic Resonance in Medicine, 3(1), 33-43.

Instrumentation for rapid MR image synthesis. / Lee, J. N.; Riederer, Stephen J; Bobman, S. A.; Farzaneh, F.; Wang, H. Z.

In: Magnetic Resonance in Medicine, Vol. 3, No. 1, 1986, p. 33-43.

Research output: Contribution to journalArticle

Lee, JN, Riederer, SJ, Bobman, SA, Farzaneh, F & Wang, HZ 1986, 'Instrumentation for rapid MR image synthesis', Magnetic Resonance in Medicine, vol. 3, no. 1, pp. 33-43.
Lee JN, Riederer SJ, Bobman SA, Farzaneh F, Wang HZ. Instrumentation for rapid MR image synthesis. Magnetic Resonance in Medicine. 1986;3(1):33-43.
Lee, J. N. ; Riederer, Stephen J ; Bobman, S. A. ; Farzaneh, F. ; Wang, H. Z. / Instrumentation for rapid MR image synthesis. In: Magnetic Resonance in Medicine. 1986 ; Vol. 3, No. 1. pp. 33-43.
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