
58
Dose Information
Adjusting the Image Noise
The correlation between attenuation and tube current
is defined by the analytical function described above.
This function may be adjusted to adapt the image qual-
ity (image noise) according to the diagnostic require-
ments and the individual preference of the radiologist.
– To adapt the image noise for a scan protocol the
Image Quality Reference mAs value in the Scan tab
card may be adjusted. This value can be adapted for
each protocol according to the user’s individual pref-
erences of image quality, and reflects the mean (eff.)
mAs value that the system will use for a reference
patient with that protocol and the corresponding
body region. The reference patient is defined as a
typical adult, 70 kg to 80 kg or 155 to 180 lbs (for
adult protocols), or as a typical child, 5 years, appr.
20 kg or 45 lbs (for child protocols). Based on that
value, CARE Dose 4D adapts the tube current (or the
mean (eff.) mAs value) to the individual patient size
or body region.
Note: Do not adapt the Image Quality Reference
mAs for an individual patient’s size. Only change
this value if you want to adjust the image quality.
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 ...