image reconstruction


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image reconstruction

An MRI term for the mathematical process of converting the composite signals obtained during the data acquisition phase into an image.

reconstruction

(re?kon-struk'shon) [ re- + construction]
1. Surgical repair or restoration of a missing part or organ.
2. The manipulation of digitized information obtained during body imaging into interpretable pictures that represent anatomical details and diseases. Synonym: image reconstruction

dose reconstruction

An estimate of the total exposure of a person or population to the environmental release of a toxic substance, such as a pollutant or a sudden burst of radiation.

breast reconstruction

Plastic surgery to restore the appearance of the breast after mastectomy. It may rely upon techniques such as the use of breast implants or tissue flaps.

image reconstruction

Reconstruction (2).

reconstruction of the knee

Any procedure to reestablish stability of the knee after injury, usually to the anterior or posterior cruciate ligaments or to both.

neovaginal reconstruction

Construction of an artificial vagina after the vagina has been removed because of cancer or trauma of the pelvic area. The tissue used may be obtained from muscle and skin tissue from the abdomen. Normal sexual function is possible after the area has healed.

surgical ventricular reconstruction

Removal of sections of the heart that have been damaged during a heart attack and are no longer helping to push blood to the body through the aorta.

transverse rectus abdominis musculocutaneous flap reconstruction

See: transverse rectus abdominis musculocutaneous flap reconstruction
References in periodicals archive ?
In this study, no significant statistical differences were observed with different reconstruction algorithms for Aorta [SUV.sub.max] or BP [SUV.sub.mean] or [TBR.sub.max] using ANOVA tests on log transformed data; suggesting that image reconstruction did not heavily influence aorta structure uptake values in our cohort of patients without known vascular disease.
The Butterworth filter in the spatial domain can be recovered from its transfer function H([omega]) in the frequency domain by the inverse Fourier transform, which will be used for image reconstruction.
It is observed that adding one more imaged line degrades the quality of the image reconstruction results.
The parameters [P.sub.acqu] and [P.sub.reco] that have the most impact on image reconstruction speed include
Clinthorne, "Grouped-coordinate ascent algorithms for penalized-likelihood transmission image reconstruction," IEEE Transactions on Medical Imaging, vol.
In [36], the L0-norm-based image reconstruction algorithm is proposed for 2D CT reconstruction.
Simon, "Fully 3D bayesian image reconstruction for the ecat exact HR+ l," Nuclear Science, vol.
Anastassopoulos, "Regularized superresolution image reconstruction employing robust error norms," Opt.
Zhang et al., "CT angiography of the head-and-neck vessels acquired with low tube voltage, low iodine, and iterative image reconstruction: clinical evaluation of radiation dose and image quality," PLoS ONE, vol.
In computed tomography (CT), iterative image reconstruction (IIR) [1-4] gives better quality images compared with filtered back projection, which is a transform reconstruction method based directly on the Radon inversion formula.
Since the high level of scattering in a most biological tissue medium image reconstruction in DOT is suffering from ill-posed nonlinear problem [7, 19].