Tissue Material Assumptions
The following assumptions were made when assigning known electromagnetic material IDs to tissues whose electromagnetic properties are not known.
Table 2: Tissue Material Assumptions (Updated: 8/22/2016)
| Slices | Actual Material | Assigned Material | Why? | Reference | Page Number |
| 1006-1048 | Galea Aponeurotica | Muscle | "continuous fibromuscular sheet" | [13] | 790 |
| 1013-1150 | Sutures | Bone Cortical | "When cranial growth ends, osteogenic cells generally bring about complete ossification of sutural ligaments" | [13] | 487 |
| 1019-1133 | Superior Sagittal Sinus | Blood Vessel | "venous channel, draining blood from the brain and cranial bones" | [13] | 1582 |
| 1022-1215 | Fissure / Subarachnoid Space | Cerebro Spinal Fluid | "CSF … reach[es] the subarachnoid space of the lateral fissure and … spread[s] over the cerebral surface." | [13] | 1205 |
| 1045-1100 1101-1169 | Frontal Sinus - Sphenoid Sinus/Maxillary Sinus | Air | "large air sinus" | [13] | 585 |
| 1067-1107 | Ventricle | Cerebro Spinal Fluid | "CSF fills the ventricles" | [13] | 1202 |
| 1111-1115 | Neurohypophysis | Nerve | "The neurohypophysis contains thin, nonmyelinated nerve fibres" | [13] | 1886 |
| 1111-1116 | Adenohypophysis | Gland | Part of the pituitary gland | [13] | 1883 |
| 1121-1148 | Transverse Sinus | Blood Vessel | The transverse sinus is one of the dural sinuses which "[drain] the blood from the brain and cranial bones" | [13] | 1582 |
| 1156-1173 | Hard Palate | Bone Cortical | "The hard palate is formed by the palatine processes of the maxillae and the horizontal plates of the palatine bones." | [13] | 1688 |
| 1157-1181 | Cisterna Magna | Cerebro Spinal Fluid | "… allows CSF to flow from the ventricle into the cerebellomedullary cistern (cisterna magna) and thus into the subarachnoid space." | [13] | 1208 |
| 1160-1190 | Uvula | Muscle | "labeled as "Uvula Muscle" in [9] | [9] | |
| 1169-1208 1208-1231 | Palatine Tonsil, Lingual Tonsil | Lymph | "Each is a mass of lymphoid tissue" | [13] | 1446 |
| 1178-1272 | Deep Fascia | Tendon | "Regular connective tissue includes those highly fibrous tissues with fibres regularly oriented, either to form sheets such as fasciae and aponeuroses, or thicker bundles as ligaments or tendons." | [13] | 90 |
| 1197-1789 | Intervertebral Disc | Cartilage | "fibrocartilagenous" | [13] | 513 |
| 1234-1247 | Epiglottis | Cartilage | Listed as "Epiglottic cartilage" | [13] | 1641 |
| 1263-1439 | Inside the trachea | Air | Assumed to be filled with air | ||
| 1275-1506 | Inside the esophagus | Air | Assumed to be filled with air | ||
| 1299-1551 | Blood Vessels in lung | v1.0-v2.2: Lung
Deflated; v2.3-: Lung Inflated | The blood vessels in the lung are assumed to be the part of the lung's electromagnetic properties. | ||
| 1376-1412 | Right and Left Principal Bronchi | Trachea | The left and right principal bronchi are a continuation of the trachea and appear most similar to the trachea. | ||
| 1367-1506 | Heart | HeartDCT | Instead of using the electromagnetic properties of the heart in [10], the different parts of the heart were labeled to increase the accuracy. The HeartDCT material refers to the yellowish tissue in the heart. It is assigned the electromagnetic properties of tendon from [10]. | ||
| 1367-1506 | Heart | HeartMuscle | Instead of using the electromagnetic properties of the heart in [10], the different parts of the heart were labeled to increase the accuracy. The HeartMuscle material refers to the muscles in the heart. It is assigned the electromagnetic properties of muscle from [10]. | ||
| 1367-1506 | Heart | VentricleAtrium | Instead of using the electromagnetic properties of the heart in [10], the different parts of the heart were labeled to increase the accuracy. The VentricleAtrium material refers only to the cavities that would be filled with blood in the heart. It is assigned the electromagnetic properties of blood from [10]. | ||
| 1440-1551 | Bronchial Tubes | v1.0-v2.2: Lung Deflated; v2.3-current: Lung Inflated | The bronchial tubes are assumed to be the part of the lung's electromagnetic properties. | ||
| 1456-1633 | Diaphragm | Diaphragm | "The diaphragm is a curved musculofibrous sheet… ." "Although it is a continuous sheet the muscle can be considered to form thee parts…" It is assigned the same electromagnetic properties as muscle. | [13] | 815 - 816 |
| 1480-1575 | Inside the stomach | Stomach Internal | Electromagnetic properties of stomach internal are currently assigned to air. However, the properties could be replaced with an equivalent food material or acid, depending on the model. Starting in v2.3, stomachinternal uses the same material properties as muscle. | ||
| 1512-1867 | Inside the colon | v2.0: Colon; v2.1-current: Colon Internal | v2.0: There was no distinction made between the colon and inside of the colon. v2.1-v2.2: The colon was separated into colon and colon internal, which was assigned to air. v2.3: Colon internal uses the same material properties as muscle. | ||
| 1542-1843 | Inside the small intestine | v2.0: Small Intestine; v2.1-current: Small Intestine Internal | v2.0: There was no distinction made between the
small intestine and inside of the small intestine. v2.1-v2.2: The small intestine was separated into small intestine and small intestine internal, which was assigned to air. v2.3: Small intestine internal uses the same material properties as muscle. | ||
| 1558-1633 | Peritoneal Cavity | Peritoneal Cavity | "Its free surface is covered by a layer of mesothelium, kept moist and smooth by a film of serous fluid." Peritoneal Cavity is assigned the same electromagnetic properties as Body Fluid. | [13] | 1734 |
| 1720-2860 | Tendon / Fascia / Ligament | Dark Tendon | Dark tendon was created as a separate material ID to aid in the segmentation process. It is assigned the same electromagnetic properties as tendon. | ||
| 1902-1959 | Urethra | Urethra | The urethra has a similar structure to the bladder in that it is composed of a muscular layer and a mucosa layer. It is assigned the same electromagnetic properties as bladder. | [13] | 1839-1840, 1842-1843 |
| 1922-2074 | Illiotibial Tract | IT Band | "The iliotibial tract is a powerful band of deep femoral fascia…" IT band was created as a separate material ID to aid in the segmentation process. It is assigned the same electromagnetic properties as tendon (and equivalently fascia). | [13] | 782 |
| 1926-2018 | Corpus Cavernosum / Corpus Spongiosum | Erectile Tissue | Erectile tissue was created as a separate material ID to aid in the segmentation process. In v2.0, it is assigned the electromagnetic properties of muscle, but this may be incorrect. | ||
| 1959-1850 | Ductus Deferens | Ductus Deferens | "The wall of the deferent duct has external loose connective tissue, intermediate muscular and internal mucosal layers. The thick muscular layer composed of ..." | [13] | 1855 |
| 2055-2056 | Intermuscular Septum | Septum (Misspelled as spectum) | "In the neck and limbs, laminae of the deep fascia pass between groups of muscles … Such intermuscular septa…" Septum was created as a separate material ID to breifly aid in the segmentation process. It is assigned the same electromagnetic properties as tendon (and equivalently fascia). | [13] | 782 |
| 2330-2349 | Meniscus | Meniscus | "The menisci (semilunar cartilages) ..." It is assigned the same electromagnetic properties as cartilage. | [13] | 703 |
| Whole body | Blood Vessels / Blood Veins / Arteries / Blood | Blood Vessel | [10] provides properties for aorta, blood, and blood vessel. It should be noted that the electromagnetic properties for aorta and blood vessel are identical in [10]. The electromagnetic properties for blood were only used for the ventricles and atriums which would have been filled with blood. | ||
| Whole Body | Fascia | Fascia | Tissue labeled fascia refer to deep fascia which is composed of "regular connective tissue includes those highly fibrous tissues with fibres regularly oriented, either to form sheets such as fasciae and aponeuroses, or thicker bundles as ligaments or tendons." It is assigned the same electromagnetic properties as tendon. | [13] | 90 |
| Whole body | Ligament | Tendon | "Regular connective tissue includes those highly fibrous tissues with fibres regularly oriented, either to form sheets such as fasciae and aponeuroses, or thicker bundles as ligaments or tendons." | [13] | 90 |
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