5. Background and Articles of Possible Interest

The validity and use of computed tomography attenuation values.

Williams G, Bydder GM, Kreel L.

Br Med Bull. 1980 Sep;36(3):279-87

Seems to be general article. Early in history of CT

Considerable investigation of:

1.  CT number of liver - fatty and iron content

2.  Bone density - measurement was reimbursed.

3.  Density corrections in radiation dose calculations (both for risk of diagnostic and radiation treatment planning).

Below are novel applications of measurements of CT numbers.

Computed tomography measurements of brain density in Schizophrenia.

Daniel DG, Kim E, Kostianovsky D, Goldberg TE, Casanova MF, Pickar D, Kleinman JE, Weinberger DR.

Biol Psychiatry. 1991 Apr 15;29(8):745-56

Implications of rapid uniform density changes on hepatic computed tomography.

Wenzel DJ, Batist G.

J Comput Tomogr. 1983 May;7(2):209-14.

Accuracy of computed tomography attenuation values in the characterization of pleural fluid: an ROC study.

Nandalur KR, Hardie AH, Bollampally SR, Parmar JP, Hagspiel KD.

Acad Radiol. 2005 Aug;12(8):987-91.