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Abdomen
265
– In general, for abdominal studies such as liver, gall
bladder (query stones), pancreas, gastrointestinal
studies, focal lesion of the kidneys and CTA studies,
it is sufficient to use just water. Water is more effec-
tive than positive oral contrast agent in depicting the
linings of the stomach & intestines in post enhance-
ment studies. In addition, the use of water will not
obscure the blood vessels thus allowing CTA process-
ing to be performed easily afterwards.
– For patients with bowel obstruction, only water or
water-soluble contrast can be used. Barium suspen-
sion is a contraindication.
• Be careful when examining pheochromocytoma
patients. Administration of an IV CM injection in
such cases may trigger a hypertensive crisis!
• To further optimize MPR image quality we recom-
mend that you reduce one or more of the following:
collimation, reconstruction increment, and slice
width for image reconstruction.
Body Kernels
• As standard kernels for body tissue studies B30s or
B40s are recommended; softer images are obtained
with B20s or B10s (extremely soft). The kernels B31s
or B41s have about the same visual sharpness as
B30s, respectively, B40s, the image appearance,
however, is more agreeable due to a ”fine-grained”
noise structure; quite often, the low contrast detect-
ability is improved by using B31s, B41s instead of
B30s, B40s.
• For higher sharpness, as is required e.g. in patient
protocols for cervical spine, shoulder, extremities,
thorax, lung, the kernels B50s, B60s, B70s, B80s are
available.
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 ...
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