Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Selection of a convolution function for Fourier inversion using gridding [computerised tomography application].

- J. Jackson, C. H. Meyer, D. Nishimura, A. Macovski
- Mathematics, Medicine
- IEEE transactions on medical imaging
- 1991

In the technique known as gridding, the data samples are weighted for sampling density and convolved with a finite kernel, then resampled on a grid preparatory to a fast Fourier transform. The… Expand

1,028 48- PDF

Exact maximum likelihood parameter estimation of superimposed exponential signals in noise

- Y. Bresler, A. Macovski
- Mathematics, Computer Science
- IEEE Trans. Acoust. Speech Signal Process.
- 1 October 1986

TLDR

748 38- PDF

Variable-rate selective excitation

- S. Conolly, D. Nishimura, A. Macovski, G. H. Glover
- Chemistry
- 1 July 1988

Abstract A procedure is introduced for refabricating any spatially selective excitation pulse to reduce its SAR while preserving its duration and slice profile. Called variable-rate selective… Expand

296 22

A Maximum Likelihood Approach to Emission Image Reconstruction from Projections

- A. Rockmore, A. Macovski
- Physics
- IEEE Transactions on Nuclear Science
- 1 August 1976

The stochastic nature of the measurements used for image reconstruction from projections has largely been ignored in the past. If taken into account, the stochastic nature has been used to calculate… Expand

217 10

Optimal Control Solutions to the Magnetic Resonance Selective Excitation Problem

- S. Conolly, D. Nishimura, A. Macovski
- Physics, Mathematics
- IEEE Transactions on Medical Imaging
- 1986

Most magnetic resonance imaging sequences employ field gradients and amplitude modulated RF pulses to excite only those spins lying in a specific plane. The fidelity of the resulting magnetization… Expand

219 8

A linear class of large-tip-angle selective excitation pulses

- J. Pauly, D. Nishimura, A. Macovski
- Chemistry
- 1 May 1989

Abstract The design of large-tip-angle selective excitation pulses is in general a nonlinear problem. In this paper we present a class of selective excitation pulses that can be designed using a… Expand

194 7

Ultrasonic imaging using arrays

- A. Macovski
- Physics
- Proceedings of the IEEE
- 1 April 1979

An analysis is presented of the two general types of arrays-the direct imaging array and the phased array. These are analyzed over three levels of approximation: geometric optics, steady-state… Expand

190 6

A Natural Pixel Decomposition for Two-Dimensional Image Reconstruction

- Michael H. Byonocore, W. Brody, A. Macovski
- Mathematics, Medicine
- IEEE Transactions on Biomedical Engineering
- 1 February 1981

In two-dimensional image reconstruction from line integrals using maximum likelihood, Bayesian, or minimum variance algorithms, the x-y plane on which the object estimate is defined is decomposed… Expand

130 5

On the number of signals resolvable by a uniform linear array

- Y. Bresler, A. Macovski
- Mathematics, Computer Science
- IEEE Trans. Acoust. Speech Signal Process.
- 1 December 1986

TLDR

108 5

Prepolarized magnetic resonance imaging around metal orthopedic implants

- R. Venook, Nathaniel I. Matter, +6 authors S. Conolly
- Materials Science, Medicine
- Magnetic resonance in medicine
- 1 July 2006

A prepolarized MRI (PMRI) scanner was used to image near metal implants in agar gel phantoms and in in vivo human wrists. Comparison images were made on 1.5‐ and 0.5‐T conventional whole‐body… Expand

71 5- PDF