Authors:
K.-M. Chui1, S. L. Chui2, A. Wojciechowski3, W. Glinkowski3; 1Uxbridge/UK, 2Prince George, BC/CA, 3Warsaw/PL
DOI:
10.1594/ecr2010/C-2935
Methods and Materials
(I) Phantom-Calibrations - A New York Catphan 500 was examined using Single Slice helical CT using technique factors of 120kVp, 300mA, 4 secs., 10mm slice.
Penumbra Spread, distance, area/volume, high-contrast resolution, and processing time were measured:
Coin & Wire Phantom was also used to study the removal of Penumbra Effect at the edges of a Guide Wire.
(II) Six Field-Studies:-
63 year old male patient was knee scanned by CT at: 120kVp; 150mA; 1.4 s/slice; Slice-thickness=1.25mm;
Fracture radius bone of the forearm of a 25 year old male patient was CT scanned at: 120kVp; 100mA; Slice-thickness=1.25mm;
A 30 yrs-male patient's fractured thigh femur with inserted intramedullary fixating nail was CT scanned by: 135kVp; 420mA; Slice-thickness=0.5mm; Exposure time=1s; 64 rows of data were collected;
A Meniscal Tear of a 53 year old male patient’s knee was examined with an 1.5T MR Scanner with Gradient Echo Sequence of:- TE: 26ms; TR: 1160ms; 3.5mm slice;
A 28 year-old male's humerus fracture was CT-examined by technique factors & details of:- 120kVp; 100mA; 2mm slice; 1 second/slice; and,
74 year-old female's metatarsal fracture was CT-examined by technique factors of:- 120kVp; 100mA; 2mm slice; scan-time = 1 second.