GE Logiq P5 User Manual
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LOGIQ 5 Basic User Manual 10-1 Direction 2300002-100 Rev. 2 Chapter 10 Cardiology Describes how to perform cardiac measurements and calculations.
Cardiology 10-2 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Cardiology Exam Preparation Introduction Measurements and calculations derived from ultrasound images are intended to supplement other clinical procedures available to the attending physician. The accuracy of measurements is not only determined by the system accuracy, but also by use of proper medical protocols by the user. When appropriate, be sure to note any protocols associated with a particular measurement or calculation. Formulas and databases used within the system software that are associated with specific investigators are so noted. Be sure to refer to the original article describing the investigators recommended clinical procedures. General Guidelines New Patient information must be entered before beginning an exam. See ‘Beginning a New Patient’ for more information. Any measurement can be repeated by selecting that measurement again from the Touch Panel Menu.
Cardiology Measurements LOGIQ 5 Basic User Manual 10-3 Direction 2300002-100 Rev. 2 Cardiology Measurements Overview Cardiology measurements offer two different types of measurement studies, Generic and Cardiac. • Generic – Each exam category has a Generic study. The Generic studies provide you quick access to measurements such as volume, angle, A/B ratio, and % stenosis. For details on most of the generic measurements, See ‘Generic Measurements’ for more information. This chapter includes a section describing generic measurements that are specific to the cardiac exam category. • Cardiac – This study includes all cardiac measurements.
Cardiology 10-4 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Naming Format for Cardiac Measurements When you make a measurement, on the Touch Panel you select the abbreviation for the measurement. Most abbreviations are made using acronyms. The following table lists acronyms used for naming cardiac measurements. Table 10-1: Cardiology Abbreviations AcronymName % STIVS % Interventricular Shortening AArea Acc Acceleration AccT Flow Acceleration Time ALS Aortic Leaflet Separation Ann Annulus Ao Aorta AR Aortic Regurg Asc Ascending ASD Atrial Septal Defect AV A o r t i c Va l v e AV Cusp Aortic Valve Cusp Separation AVA Aortic Valve Area AV-A Aortic Valve Area by Continuity Equation BSA Body Surface Area CI Cardiac Index CO Cardiac Output d Diastolic D Diameter Dec Deceleration DecT Deceleration Time Desc Descending Dur Duration EdV End Diastolic Volume EF Ejection Fraction EPSS E-Point-to-Septum Separation
Cardiology Measurements LOGIQ 5 Basic User Manual 10-5 Direction 2300002-100 Rev. 2 EsV End Systolic Volume ET Ejection Time FS Fractional Shortening FV Flow Volume FVI Flow Velocity Integral HR Heart Rate IVRT IsoVolumetric Relaxation Time IVS Interventricular Septum L Length LA Left Atrium LAA Left Atrium Area LAD Left Atrium Diameter LPA Left Pulmonary Artery LV Left Ventricle LVA Left Ventricular Area LVID Left Ventricle Internal Diameter LVL Left Ventricle Length LVM Left Ventricular Mass LVPW Left Ventricle Posterior Wall ML Medial to Lateral MPA Main Pulmonary Artery MR Mitral Regurgitation MV Mitral Valve MVcf Mean Velocity Circumferential Fiber Shortening MVO Mitral Valve Orifice OT Outflow Tract P Papillary Muscles PA Pulmonary Artery PAP Pulmonary Artery Pressure PDA Patent Ductus Arterosis Table 10-1: Cardiology Abbreviations AcronymName
Cardiology 10-6 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 PEP Pre-Ejection Period PFO Patent Foramen Ovale PG Pressure Gradient PHT Pressure Half Time PISA Proximal Isovelocity Surface Area PV Pulmonic Valve PV-A Pulmonic Valve Area by Continuity Equation PVein Pulmonary Vein PW Posterior Wall Qp Pulmonic Flow or CO Qs Systemic Flow or CO RA Right Atrium RAA Right Atrium Area Rad Radius RAD Right Atrium Diameter RPA Right Pulmonary Artery RV Right Ventricle RVA Right Ventricle Area RVAW RIght Ventricle Anterior Wall RVD Right Ventricle Diameter RVID Right Ventricle Internal Diameter RVL Right Ventricle LEngth RVOT Right Ventricle Outflow Tract s Systolic SI Stroke Index ST Shortening SV Stroke Volume SVI Stroke Volume Index TTime TA Tricuspid Annulus Table 10-1: Cardiology Abbreviations AcronymName
Cardiology Measurements LOGIQ 5 Basic User Manual 10-7 Direction 2300002-100 Rev. 2In this manual, the abbreviation for each measurement is listed in parenthesis after the measurement, as follows: • Aortic Root Diameter (Ao Root Diam) • Left Ventricle Posterior Wall Thickness, Diastolic (LV P W d) For example, to measure the Aortic Root Diameter, you select Ao Diam on the Touch Panel. TAML Tricuspid Annulus Medial to Lateral TR Tricuspid Regurgitation TV Tricuspid Valve TVA Tricuspid Valve Area Vcf Velocity Circumferential Fiber Shortening Vel Velocity VET Valve Ejection Time Vmax Maximum Velocity Vmean Mean Velocity VSD Ventricular Septal Defect VTI Velocity Time Integral Table 10-1: Cardiology Abbreviations AcronymName
Cardiology 10-8 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Cardiac Measurements This section lists cardiac measurements and the steps to perform them. The measurement information in this section is organized by mode, then by region of interest, and then by type of measurement. The organization is as follows: • Mode; there is a section for B-Mode, M-Mode, Color Flow Mode, and Doppler Mode. There is also a Combination Mode section, which includes calculations that are a result of measurements made in more than one mode. • Within each mode section, there are sections for region of interest, such as aorta or mitral valve. • Within each region of interest section, there are sections for type of measurement, such a one distance, two distance, trace, or velocity flow trace. Each measurement type section lists all cardiac measurements that are that type, and then describes the steps to perform that type of measurement. Some measurements, such as Aortic Root Diameter or Aortic Valve Cusp Separation, can be made in B-Mode or M-Mode. The information for these measurements is included in both B- Mode and M-Mode sections.
Cardiology Measurements LOGIQ 5 Basic User Manual 10-9 Direction 2300002-100 Rev. 2 B-Mode Measurements Aorta The following are cardiac B-Mode aorta measurements: One distance measurements• Aortic Arch Diameter (Ao Arch Diam) • Ascending Aortic Diameter (Ao Asc) • Descending Aortic Diameter (Ao Desc Diam) • Aorta Annulus Diameter (Ao Annulus Diam) • Aorta Isthmus (Ao Isthmus) • Aorta ST Junction (Ao st junct) Making a one distance measurement1. Select the measurement; an active caliper displays. 2. To position the active caliper at the start point, move the Trackball. 3. To fix the start point, press Set. The system fixes the first caliper and displays a second active caliper. 4. To position the second active caliper at the end point, move the Trackball. A dotted line connects the measurement points. 5. To complete the measurement, press Set. The system displays the measurement in the Results Window.
Cardiology 10-10 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Aortic Valve The following are cardiac B-Mode aortic valve measurements: One distance measurements• Aortic Diameter (ASD Diam) • Aortic Valve Cusp Separation (AV C u s p) • Aortic Valve Diameter (AV D i a m) Making a one distance measurement1. Select the measurement; an active caliper displays. 2. To position the active caliper at the start point, move the Trackball. 3. To fix the start point, press Set. The system fixes the first caliper and displays a second active caliper. 4. To position the second active caliper at the end point, move the Trackball. A dotted line connects the measurement points. 5. To complete the measurement, press Set. The system displays the measurement in the Results Window. One trace measurements• Aortic Valve Area Planimetry (AVA P l a n i m e t r y) • Transverse Aortic Valve Area (Trans AVA(d), Trans AVA ( s )) Making a trace measurement1. Select the measurement; an active caliper displays. 2. To position the caliper at the start point, move the Trackball. 3. To fix the trace start point, press Set. The system displays a vertical dotted line. 4. To trace the measurement area, move the Trackball. A line shows the traced area. 5. To complete the measurement, press Set. The system displays the measurement in the Results Window.