
32
Scan and Reconstruction
Head Kernels
For soft tissue head studies, the standard kernel is
H40s; softer images are obtained with H30s or H20s,
H10s, sharper images with H50s. The kernels H21s,
H31s, H41s yield the same visual sharpness as H20s,
H30s or H40s, respectively. The image appearance,
however, is more acceptable due to a "fine-grained"
noise structure; quite often, the low contrast detect-
ability is improved by using H31s, H41s instead of
H30s, H40s.
In emergency examinations, kernels H22s, H32s, and
H42s can be used because they allow fast reconstruc-
tion (FR) and easy patient positioning (50 cm FoV). To
ensure best performance, special online bone correc-
tion (PFO) is not used.
High Resolution head studies should be performed
with H50f, H60f (for example, for dental and sinuses).
It is essential to position the area of interest in the cen-
ter of the scan field.
For a better gray-white brain tissue differentiation use
the H37s, H38s or H47s kernel (Emotion 16-slice con-
figuration only).
Child Head Kernels
For head scans of small children, the kernels C20s,
C30s (for example for soft tissue studies) and C60s (for
example, provided for sinuses) should be chosen
instead of the "adult" head kernels H20s, H30s and
H60s.
Содержание SOMATOM
Страница 4: ...4 Overview Respiratory Gating 484 Children 508 ...
Страница 5: ...Overview 5 ...
Страница 121: ...Workflow Information 121 ...
Страница 135: ...Contrast Medium 135 ...
Страница 157: ...Application Information 157 Program to define capture options ...
Страница 161: ...Application Information 161 ...
Страница 167: ...Head 167 ...
Страница 183: ...Head 183 ...
Страница 187: ...Head 187 ...
Страница 191: ...Head 191 ...
Страница 195: ...Head 195 ...
Страница 211: ...Neck 211 ...
Страница 217: ...Neck 217 ...
Страница 223: ...Shoulder 223 ...
Страница 239: ...Thorax 239 ...
Страница 249: ...Thorax 249 ...
Страница 269: ...Abdomen 269 ...
Страница 273: ...Abdomen 273 ...
Страница 277: ...Abdomen 277 ...
Страница 287: ...Abdomen 287 ...
Страница 293: ...Abdomen 293 ...
Страница 307: ...Spine 307 ...
Страница 311: ...Spine 311 ...
Страница 321: ...Pelvis 321 ...
Страница 327: ...Pelvis 327 ...
Страница 338: ...338 Upper Extremities Hints For image reconstruction of soft tissue use kernel B30s B31s ...
Страница 339: ...Upper Extremities 339 ...
Страница 342: ...342 Upper Extremities Hint For image reconstruction of soft tissue use kernel B30s B31s ...
Страница 343: ...Upper Extremities 343 ...
Страница 357: ...Lower Extremities 357 ...
Страница 369: ...Vascular 369 ...
Страница 375: ...Vascular 375 ...
Страница 379: ...Vascular 379 ...
Страница 383: ...Vascular 383 ...
Страница 387: ...Vascular 387 ...
Страница 393: ...Vascular 393 ...
Страница 397: ...Vascular 397 ...
Страница 401: ...Vascular 401 ...
Страница 405: ...Vascular 405 ...
Страница 409: ...Vascular 409 ...
Страница 413: ...Vascular 413 ...
Страница 421: ...Specials 421 ...
Страница 423: ...Specials 423 ...
Страница 435: ...Specials 435 ...
Страница 454: ...454 Specials CARE Vision and Biopsy layout for Single image display CARE Vision layout for CAREView large size display ...
Страница 455: ...Specials 455 CARE Vision and Biopsy layout for CAREView equal size display Biopsy two segment ...
Страница 461: ...Specials 461 ...
Страница 469: ...Radiation Therapy 469 ...
Страница 483: ...Radiation Therapy 483 ...
Страница 517: ...Children 517 ...
Страница 521: ...Children 521 ...
Страница 525: ...Children 525 ...
Страница 529: ...Children 529 ...
Страница 533: ...Children 533 ...
Страница 537: ...Children 537 ...
Страница 545: ...Children 545 ...
Страница 553: ...Children 553 ...
Страница 557: ...Children 557 ...
Страница 561: ...Children 561 ...
Страница 565: ...Children 565 ...
Страница 573: ...Children 573 ...
Страница 577: ...Children 577 ...
Страница 581: ...Children 581 ...
Страница 585: ...Children 585 ...