Visual fuzzy cluster analysis of MR images
| Autor: | Clark L. Carrol, Cnstina Ballerio, Stuart W. Young |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Pulse (signal processing)
business.industry General Medicine Fuzzy logic Magnetic Resonance Imaging Square (algebra) Femoral head Nuclear magnetic resonance medicine.anatomical_structure Image Interpretation Computer-Assisted Spin echo Cluster (physics) medicine Image Processing Computer-Assisted Humans Radiology Nuclear Medicine and imaging Cortical bone Mr images business |
| Zdroj: | AJR. American journal of roentgenology. 152(1) |
| ISSN: | 0361-803X |
| Popis: | approach for assignment of gray-scale signatures to normal tissue. Iliac artery (circle), cortical bone (triangle), fat (square), muscle (diamond), and fluid within bladder (upper left) are seen. Inspection of femoral head reveals it to be a member of the fat fuzzy cluster set (square) and Internally homogeneous and therefore normal. Tissue surrounding femoral head (high Intensity at 2 and 8 o’clock positions) belongs to fuzzy cluster set defined by fluid in bladder and thus represents an effusIon In left hip. Only one Image of this sequence is shown. Tissues were studied with four pulse sequences: partial saturatIon, 600/20; spIn echo, 2000/20,70; and gradient echo/small tip angle, 25/15/30#{176} tip angle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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