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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.
Summary of Contents for SOMATOM
Page 4: ...4 Overview Respiratory Gating 484 Children 508 ...
Page 5: ...Overview 5 ...
Page 121: ...Workflow Information 121 ...
Page 135: ...Contrast Medium 135 ...
Page 157: ...Application Information 157 Program to define capture options ...
Page 161: ...Application Information 161 ...
Page 167: ...Head 167 ...
Page 183: ...Head 183 ...
Page 187: ...Head 187 ...
Page 191: ...Head 191 ...
Page 195: ...Head 195 ...
Page 211: ...Neck 211 ...
Page 217: ...Neck 217 ...
Page 223: ...Shoulder 223 ...
Page 239: ...Thorax 239 ...
Page 249: ...Thorax 249 ...
Page 269: ...Abdomen 269 ...
Page 273: ...Abdomen 273 ...
Page 277: ...Abdomen 277 ...
Page 287: ...Abdomen 287 ...
Page 293: ...Abdomen 293 ...
Page 307: ...Spine 307 ...
Page 311: ...Spine 311 ...
Page 321: ...Pelvis 321 ...
Page 327: ...Pelvis 327 ...
Page 338: ...338 Upper Extremities Hints For image reconstruction of soft tissue use kernel B30s B31s ...
Page 339: ...Upper Extremities 339 ...
Page 342: ...342 Upper Extremities Hint For image reconstruction of soft tissue use kernel B30s B31s ...
Page 343: ...Upper Extremities 343 ...
Page 357: ...Lower Extremities 357 ...
Page 369: ...Vascular 369 ...
Page 375: ...Vascular 375 ...
Page 379: ...Vascular 379 ...
Page 383: ...Vascular 383 ...
Page 387: ...Vascular 387 ...
Page 393: ...Vascular 393 ...
Page 397: ...Vascular 397 ...
Page 401: ...Vascular 401 ...
Page 405: ...Vascular 405 ...
Page 409: ...Vascular 409 ...
Page 413: ...Vascular 413 ...
Page 421: ...Specials 421 ...
Page 423: ...Specials 423 ...
Page 435: ...Specials 435 ...
Page 455: ...Specials 455 CARE Vision and Biopsy layout for CAREView equal size display Biopsy two segment ...
Page 461: ...Specials 461 ...
Page 469: ...Radiation Therapy 469 ...
Page 483: ...Radiation Therapy 483 ...
Page 517: ...Children 517 ...
Page 521: ...Children 521 ...
Page 525: ...Children 525 ...
Page 529: ...Children 529 ...
Page 533: ...Children 533 ...
Page 537: ...Children 537 ...
Page 545: ...Children 545 ...
Page 553: ...Children 553 ...
Page 557: ...Children 557 ...
Page 561: ...Children 561 ...
Page 565: ...Children 565 ...
Page 573: ...Children 573 ...
Page 577: ...Children 577 ...
Page 581: ...Children 581 ...
Page 585: ...Children 585 ...