3DVIEWNIX: an open, transportable software system for the visualization and analysis of multidimensional, multimodality, multiparametric images

Abstract

3DVJEWNIX is a data-, machine-, and application-independent software system, developed and maintained on an ongoing basis by the Medical Image Processing Group. It is aimed at serving the needs of biomedical visualization researchers as well as biomedical end users. 3DVIEWNIX is not designed around a fixed methodology or a set of methods packaged in a fixed fashion for a fixed application. Instead, we have identified and incorporated in 3DVIEWNIX a set of basic imaging transforms that are required in most visualization, manipulation, and analysis methods. The result is a powerful exploratory environment that provides not only the commonly used standard tools but also an immense variety of others. In addition to visualization, it incorporates a variety of multidimensional structure manipulation and analysis methods. We have tried to make its design as much as possible image-dimensionality-independent to make it just as convenient to process 2D and 3D data as it is to process 4D data. It is based on UNIX, C, X-Window and our own multidimensional generalization of the 2D ACR-NEMA standards for image data representation.

Computed Tomography–Defined Abdominal Adiposity Is Associated With Acute Kidney Injury in Critically Ill Trauma Patients*

“…For subjects with an abdominal CT available during the first 14 days of admission, axial slices at the level of the L4-5 intervertebral disc space were imported into the software system 3DVIEWNIX (21). The time window was limited to 14 days in order to reflect, as accurately as possible, VAT and SAT areas at the time of admission, prior to adipose tissue loss that might result from a prolonged hospitalization.…”

“…To determine VAT and SAT areas, the 3DVIEWNIX software employs a user-guided LiveWire tracing tool that automatically delineates the myo-subcutaneous interface to draw the boundary between subcutaneous and visceral compartments (Figure 1A) (21). Tissue area (cm 2 ) in the adipose-attenuation range (−200 to −40 Hounsfield Units) both within (VAT) and outside of (SAT) the boundary was calculated after correcting for partial volume effects near the outer skin boundary.…”

Three-dimensional computed tomography of the reconstructed lower urinary tract: technique and findings

“…The 2-mm CT sections obtained with our scan protocol were transferred by Thin Ethernet connection to an external workstation (SUN Sparc 10/40 and SGI/Indigo2, respectively) where the 3D reconstruction process was performed using the software package ª3dviewnixº [8]. The first step was to identify the anatomical structures of interest in the CT images.…”

Coding for the storage and communication of visualisations of 3D medical data

“…(x y)(S 2 xx + 2 S 2 xy + S 2 yy ) dx dy (10) where ! (x y) is a binary function that equals zero if (x y) lies on a discontinuity.…”

“…(x y) is a binary function that equals zero if (x y) lies on a discontinuity. T aking derivatives of the surface function S(x y P ) written in the form (8) and replacing in (10) we obtain, after simple manipulations…”