In both cases, the volume that is extracted must be able to follow the fiber bundles across the volume. High contrast makes segmentation easier, especially when color information is available. In addition, the need for fixation must also be addressed. It has been shown that soft tissue fixation in formalin causes shrinkage, altering the structure of the original tissue. Some typical values of contraction for different fixation are: formalin (5% - 10%), alcohol (10%), bouin (<5%).Imaging methods used in ECM visualization and their properties. Disorders
Soft tissue disorders are medical conditions affecting soft tissue. Often soft tissue injuries are some of the most chronically painful and difficult to treat because it is very difficult to see what is going on under the skin with the soft connective tissues, fascia, joints, muscles and tendons. Musculoskeletal specialists, manual therapists and neuromuscular physiologists and neurologists specialize in treating injuries and ailments in the soft tissue areas of the body. These specialized clinicians often develop innovative ways to manipulate the soft tissue to speed natural healing and relieve the mysterious pain that often accompanies soft tissue injuries. This area of expertise has become known as soft tissue therapy and is rapidly expanding as the technology continues to improve the ability of these specialists to identify problem areas more quickly. A promising new method of treating wounds and soft tissue injuries is via platelet growth factor (PGF).There is a close overlap between the term "soft tissue disorder" and rheumatism. Sometimes the term "soft tissue rheumatic disorders" is used to describe these conditions.
Oral spelling for these individuals is normal, and their finger tapping speed is below normal. This shows that there are problems within the fine motor skills of these individuals. People with developmental coordination disorder may be dysgraphic and motor-dysgraphia may serve as a marker of dyspraxia. Motor-dysgraphics struggle with proper finger grip and writing is often slanted due to holding a pen or pencil incorrectly. Average writing speed is slower than that of non-dysgrapic individuals, but this seems to improve with age. Motor skill deficits appears to be a common cause of dysgraphia; 78% of children with the disorder present kinematic difficulties, while 58% of them display issues with pressure skills. Spatial
A person with spatial dysgraphia has a defect in the understanding of space. This impaired spatial perception causes illegible spontaneously written work, illegible copied work, abnormal spacing between letters and majorly impaired drawing abilities. They have normal oral spelling and normal finger tapping speed, suggesting that this subtype is not fine motor based. Symptoms in actuality may vary in presentation from what is listed here. Spatial dysgraphia may develop in individuals with lesions on the right hemisphere of the brain. Miscellaneous
Other subtypes and informal classification systems have been proposed by researchers; this includes but is not limited to phonological dysgraphia, deep dysgraphia and surface dysgraphia. Signs and symptoms
The symptoms to dysgraphia are often overlooked or attributed to the student being lazy, unmotivated, careless or anxious. The condition may also be dismissed as simply being an expression of attention deficiency or having delayed visual-motor processing.