Siemens ARTIS 2 S Service Manual Page 489
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AXIOM Artis AXA4-100.620.08.01.02 73 / 104
Quantification
Quantitative Ventricular Analysis (LVA)
Important notes
The left ventricular analysis software (LVA) was developed for analyses of the left
ventricle of the heart in a 30° RAO projection (in plane A) or for biplane analyses
in a 60° LAO projection in plane B.
The cardiac phases which are of most interest are the end diastole (= ED) and
end systole (= ES) phases. If you use these phases, you can calculate several val-
ues, e.g. ejection fraction (EF).
All evaluation parameters depend on correct inputs. Changing the angulation
changes the dimensions of the ventricle, which leads to incorrect results. The
greater the deviation from 30° RAO or 60° LAO, the less reliable the results.
Starting analysis
Selecting a scene
u Load a suitable scene from the Patient Browser onto the Quant task card by
drag-and-drop or a double click.
➩ Part Image Viewing and Image Processing, Chapter General, “Loading a
scene/image”
The formulas for volume correction (regression formulas) are based on the left
ventricle form in the 30° RAO projection (in plane A) or 60° LAO projection in
plane B
If the projection deviates from this projection, the results may be less reliable!
u Please ensure correct 30° RAO projection (in plane A) or 60° LAO projection
in plane B
The permitted deviation from this projection is configurable.
➩ “Permitted rotation range” on page 102
- Operator Manual 1
- Volume 2 1
- AXIOM Artis 1
- Overall Table of Contents 3
- Part: Examination 4
- Part: Special Examinations 5
- Part: Exam Sets 5
- Part: Quantification 6
- Part: Troubleshooting 7
- Abbreviations/Glossary 35
- Application 43
- System configurations 43
- Equipment in the Control Room 45
- Imaging system overview 45
- LCD monitor(s) 46
- SIMOMED monitor(s) 47
- Keyboard 48
- CD drive 52
- ON box with CD drive(s) 53
- Intercom system 54
- On-site equipment 55
- Acquisition system overview 57
- Overview Artis dBC/dBA 59
- The top stand (Artis dBC/dBA) 60
- Overview Artis dTC/dTA 61
- Artis dTC/dTA Stand/C-arm 62
- Floor-mounted patient table 63
- Accessory rails 65
- Connectors 65
- Overview Artis dMP 66
- Artis dMP Stand/C-arm 67
- Trolley for control modules 68
- Examination Room 69
- Control consoles 69
- Emergency STOP button 70
- Table control module (TCM) 71
- (View from the rear) 74
- Orientation key 76
- Collimator versions 78
- Touchscreen control 80
- Keys on the FD 81
- Handswitch 82
- Footswitch 82
- Footswitch functions 84
- Cable with plug 85
- HT-S footswitch 86
- Monitor suspension system 88
- Data display 92
- Readings on the data display 93
- Stand/C-arm position 95
- Table position 96
- Programmed positions 97
- Patient coordinates 99
- Tube load 100
- Messages 101
- Voice control units 103
- Acoustic signals 105
- System Operation 107
- Chapter: DVD Video Recording 109
- Unit Movements 111
- Movement possibilities 111
- Basic positions of the units 116
- Initiating unit movements 120
- Collision protection 121
- Stopping movements 123
- Table movements 130
- C-arm movements (angulations) 135
- Stand/C-arm/system movements 141
- FD lift / Setting the SID 144
- Storing programmed positions 152
- Deleting programmed positions 155
- Manual stand movements 156
- (Multispace F only) 157
- Swinglab operation 159
- Positioning the monitors 161
- Setting the collimators 165
- Manual image rotation 173
- Grids for inserting at the FD 175
- Introduction 177
- Input areas 180
- Selecting a task card 181
- Selection fields with window 181
- IS joystick functions 184
- Using the joystick 184
- Operation via Voice Control 187
- Important information 187
- Setup for operation 188
- Voice commands 189
- Troubleshooting 194
- DVD Video Recording 195
- DVD recording 196
- Removing/inserting a DVD 197
- Formatting a DVD-RAM 197
- Finalizing a DVD-R 198
- DVD playback 199
- Examination 201
- Acquisition 203
- Registering a patient 203
- Attaching the ECG 210
- Setting the isocenter 211
- Selecting a user profile 225
- Flipping an image 236
- Monitoring the dose 239
- Fluoroscopy 243
- Switching roadmap on/off 244
- Storing a fluoroscopic scene 245
- Using the timer 245
- Storing reference images 250
- Performing roadmap 260
- Chapter: Image Postprocessing 266
- Chapter: DSA Postprocessing 267
- Chapter: Exam Protocol 267
- Table of Contents 268
- The task card PostProc 269
- Text information in images 270
- In full screen mode 271
- In the scene/image directory 274
- Starting postprocessing 275
- Loading a scene/image 276
- Changing patient data 277
- Changing the name of a series 279
- Scene directory 283
- Representative 284
- Changing the selection 286
- Selecting more than one scene 286
- Image overview of a scene 287
- Viewing scenes/images 288
- Starting Loop 289
- Setting the review rate 290
- Stopping Loop 291
- Single step 291
- Loop through all scenes 293
- Selecting scene/image display 294
- At the touchscreen control 295
- Setting an electronic shutter 296
- Inverting grayscale values 298
- Move image up 300
- Move image down 300
- Using the pointer 301
- Switching ECG display on/off 302
- Switching image text on/off 303
- Image Postprocessing 305
- Information about windowing 306
- Setting window values 308
- Applying a filter 311
- Changing the image display 313
- Orientation labels 320
- Entering free texts 323
- Using predefined texts 323
- Drawing circles 325
- Drawing lines or arrows 325
- Drawing polygons 326
- Calibration 327
- Starting calibration 329
- Performing manual calibration 330
- Drawing and measuring angles 332
- DSA Postprocessing 335
- DSA tools 336
- Setting a new mask 338
- Replacing the mask 340
- Starting pixelshift 346
- Automatic pixelshift 347
- Manual pixelshift 349
- Flexible pixelshift 350
- Undoing pixelshift 351
- Exam Protocol 357
- Displaying the Exam Protocol 357
- Entries in the Exam Protocol 358
- Entering comments 363
- Printing the Exam Protocol 363
- Closing the window 363
- Closing Postprocessing 365
- Automatic storage 365
- Documenting scenes/images 366
- Film preview 367
- Closing the patient 371
- Configuring patient close 372
- Procedure tracking with MPPS 373
- Exam Sets 377
- The Exam Set Editor 379
- Current exam set 380
- Viewing exam sets 382
- Editing exam sets 384
- Closing the Exam Set Editor 392
- Parameters for Exam Sets 393
- Acquisition parameters 394
- Radiation parameters 409
- Pulse rates 412
- General parameters 414
- Quantification 417
- Quantitative analysis methods 421
- Important notes 422
- The Quant task card 423
- Zooming/panning 428
- Deleting graphics 431
- Functions during an analysis 432
- Default settings 436
- Closing default settings 437
- Performing a calibration 441
- General functions 442
- Catheter calibration 446
- Distance calibration 449
- Sphere calibration 452
- Configuring the calibration 456
- Starting vascular analysis 459
- Selecting the analysis method 460
- Artery contour detection 463
- Automatic contour detection 464
- Manual contour correction 465
- Manual restriction 467
- Naming curves 468
- Diameter 470
- Diameter and area 471
- Density profile 472
- Background analysis 473
- Performing analysis 474
- Manual subsegment 479
- Results (report) 481
- Parameters displayed 482
- Configuring QCA/QVA 487
- Starting analysis 489
- Selecting images 493
- Biplane LVA 495
- Defining contours 497
- Defining a contour manually 499
- Drawing the wall contour 501
- Checking the contour 502
- Annotating a contour 503
- Calling up analysis again 504
- Regression formulae 508
- Analysis parameters 510
- Wall motion analysis 512
- Regional wall motion analysis 514
- Radial wall motion analysis 515
- Configuring LVA 516
- Bibliography on LVA 519
- Equipment with accessories 525
- Handling accessory parts 525
- (not in Artis dMP) 527
- Tabletops 527
- Mattresses 527
- Head support with cushion set 528
- Supports with accessory rails 529
- Head-end holder 530
- Articulated arm support 531
- Handgrips with supports 532
- Shoulder supports 534
- Arm support 535
- Arm holders 536
- Cable clips 537
- Infusion bottle holder 537
- Immobilizing straps 538
- Catheter tray, footside 539
- Instrument tray 539
- Stackable accessory rail 540
- Abdominal compression band 540
- Accessories for Artis (d)MP 545
- Holder with accessory rails 546
- Adapter with rails 548
- Footboard 550
- Handgrips 553
- Shoulder belt 554
- Tabletop extension 556
- Compression unit 557
- Stirrups 558
- Foot holder 560
- Miscellaneous Accessories 563
- CRAN CAUD 564
- Examiner lights 571
- Injector 572
- Sterile covers 573
- System messages 577
- Error handling 578
- Message lines 578
- Messages, causes, measures 582
- Restart necessary! 585
- Shutdown necessary! 586
- Memory full! 587
- Power failure! 590
- Restarting after a fault 593
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