Matrix The image is represented as a MATRIX

  • Slides: 15
Download presentation

Matrix • The image is represented as a MATRIX of numbers. • Matrix :

Matrix • The image is represented as a MATRIX of numbers. • Matrix : A two dimensional array of numbers arranged in rows and columns. • Each number represents the value of the image at that location.

Voxel n Each individual element or number in the image matrix represents a three

Voxel n Each individual element or number in the image matrix represents a three dimensional volume element in the object, called a VOXEL.

Pixel • The VOXEL is represented in the image as a twodimensional element called

Pixel • The VOXEL is represented in the image as a twodimensional element called PIXEL - (picture element).

The dual energy characterization shows that the calculus of patient 2 is a calcified

The dual energy characterization shows that the calculus of patient 2 is a calcified stone, color-coded in blue (as cortical bone in the image). In patient 1 the kidney stone can be characterized as uric acid stone, color-coded in red.

[B] Corresponding angiographic image reconstructed from the same scan. There is embolic material in

[B] Corresponding angiographic image reconstructed from the same scan. There is embolic material in the lower and middle lobe arteries. [A] Color-coded sagittal MPR of the right lung showing normally perfused vessels in turquoise and embolized vessels in red.

[A] Axial image of both feet showing massive deformities and calcified masses [B] The

[A] Axial image of both feet showing massive deformities and calcified masses [B] The red color-coding confirms uric acid in the masses, identifying them as gout tophi.