Left Ventricular Dimensions: Difference between revisions

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-==The Left Ventricular==
+==The Left Ventricle==
-[[Image:LeftVentricle.jpg|200px|right|thumb|'''Example:''' Measurement end - Diastolic wall thickness (red) + LV diameter (green)]]
+[[Image:LeftVentricle.svg|200px|right|thumb|'''Example:''' Measurement end - Diastolic wall thickness (red) + LV diameter (green)]]
-Each echocardiogram is an evaluation of the LV dimensions, wall thicknesses and described function.
+Each echocardiogram includes an evaluation of the LV dimensions, wall thicknesses and function.
-Good and measurements are essential and may have implications for therapy. The LV dimensions must be measured as the end-diastolic and end-systolic valves (MV and AoV) are closed. Plax in The measurement is located in the basal portion of the LV by the chordae.
+Good measurements are essential and may have implications for therapy. The LV dimensions must be measured when the end-diastolic and end-systolic valves (MV and AoV) are closed in the parasternal long axis (PLAX) view. The measurement is performed in the basal portion of the LV by the chordae.
-==Left ventricular dimensions==
+===Left ventricular dimensions===
-{| class="wikitable" cellpadding="0" cellspacing="0" border="0" width="600px"
+{| class="wikitable" cellpadding="0" cellspacing="0" border="0" width="700px"
 |-
 !rowspan="2"|
@@ Line 99: / Line 99: @@
 |colspan="9"|
 *BSA, body surface area; LV, left ventricular.
-*'''Bold values:''' Recommended and best validated.
+*'''Bold values:''' Recommended and best validated.<cite>1</cite>
+|}
-'''Source:''' Echocardiographic derived measures are reported as internal diameter. Armstrong WF, Ryan, T, "Evaluation of systolic function of the left ventricle" in "Feigenbaum's Echocardiography", 7th ed, Philadelphia, Lippincott Williams & Wilkins, p.123.
+===Left ventricular geometry and mass===
+{| class="wikitable" cellpadding="0" cellspacing="0" border="0" width="700px"
+|-
+!rowspan="2"|
+!colspan="4"|Women
+!colspan="4"|Men
+|-
+|align="center"|'''Reference range'''
+|align="center"|'''Mildly abnormal'''
+|align="center"|'''Moderately abnormal'''
+|align="center"|'''Severely abnormal'''
+|align="center"|'''Reference range'''
+|align="center"|'''Mildly abnormal'''
+|align="center"|'''Moderately abnormal'''
+|align="center"|'''Severely abnormal'''
+|-
+|colspan="9"|'''Linear Method'''
+|-
+|LV mass, g
+|align="center"|67–162
+|align="center"|163–186
+|align="center"|187–210
+|align="center"|≥211
+|align="center"|88–224
+|align="center"|225–258
+|align="center"|259–292
+|align="center"|≥293
+|-
+!LV mass/BSA, g/m2
+!43–95
+!96–108
+!109–121
+!≥122
+!49–115
+!116–131
+!132–148
+!≥149
+|-
+|LV mass/height, g/m
+|align="center"|41–99
+|align="center"|100–115
+|align="center"|116–128
+|align="center"|≥129
+|align="center"|52–126
+|align="center"|127–144
+|align="center"|145–162
+|align="center"|≥163
+|-
+|LV mass/height<sup>2</sup>, g/m2
+|align="center"|18–44
+|align="center"|45–51
+|align="center"|52–58
+|align="center"|≥59
+|align="center"|20–48
+|align="center"|49–55
+|align="center"|56–63
+|align="center"|≥64
+|-
+|Relative wall thickness, cm
+|align="center"|0.22–0.42
+|align="center"|0.43–0.47
+|align="center"|0.48–0.52
+|align="center"|≥0.53
+|align="center"|0.24–0.42
+|align="center"|0.43–0.46
+|align="center"|0.47–0.51
+|align="center"|≥0.52
+|-
+!Septal thickness, cm
+!0.6–0.9
+!1.0–1.2
+!1.3–1.5
+!≥1.6
+!0.6–1.0
+!1.1–1.3
+!1.4–1.6
+!≥1.7
+|-
+!Posterior wall thickness, cm
+!0.6–0.9
+!1.0–1.2
+!1.3–1.5
+!≥1.6
+!0.6–1.0
+!1.1–1.3
+!1.4–1.6
+!≥1.7
+|-
+|colspan="9"|'''2D Method'''
+|-
+|LV mass, g
+|align="center"|66–150
+|align="center"|151–171
+|align="center"|172–182
+|align="center"|>193
+|align="center"|96–200
+|align="center"|201–227
+|align="center"|228–254
+|align="center"|>255
+|-
+!LV mass/BSA, g/m<sup>2</sup>
+!44–88
+!89–100
+!101–112
+!≥113
+!50–102
+!103–116
+!117–130
+!≥131
+|-
+|colspan="9"|
+*BSA, body surface area; LV, left ventricular.
+*'''Bold values:''' Recommended and best validated.<cite>1</cite>
+*Click [http://csecho.ca/cardiomath/?eqnHD=echo&eqnDisp=lvmlvmi '''here'''] for calculation of LV mass.
 |}
-==Left ventricular geometry and mass==
-Click [http://csecho.ca/cardiomath/?eqnHD=echo&eqnDisp=lvmlvmi here] for calculation of LV mass.
 ==References==
 <biblio>
-#Ref pmid=16458610
+#1 Echocardiographic derived measures are reported as internal diameter. Armstrong WF, Ryan, T, "Evaluation of systolic function of the left ventricle" in "Feigenbaum's Echocardiography", 7th ed, Philadelphia, Lippincott Williams & Wilkins, p.123.
+#2 pmid=16458610
 </biblio>
+==External links==
+* [https://www.techmed.sk/en/echo/left-ventricle/ Left ventricular dimensions - all measurements (TECHmED)]