Lateral Abdominal Wall

LAW 0-Linea-semilunaris
LAW 0-Linea-semilunaris
LAW_0: Linea semilunaris, showing where the rectus attaches and joins the lateral abdominal musculature, note hypertrophy of internal oblique
LAW 1
LAW 1
LAW_1: The three muscles imaged in the lateral abdominal wall (LAW)
LAW 2a
LAW 2a
LAW_2: Moving more lateral, note the shadow effect of the TA as the fibers are now parallel with the soundwaves and no longer produce an echo, note how dark and well defined the musculature appears noting a high degree of vascularity.
LAW 3a-relaxed-labels
LAW 3a-relaxed-labels
LAW_3a: Using the “Type 2” preset in a patient with moderate adiposity
LAW 3b-contracted-labels
LAW 3b-contracted-labels
LAW_3b: The same patient as previous image showing good isolation and corseting of TA
LAW 4-poor-activation
LAW 4-poor-activation
LAW_4: Poor motor activation pattern showing thickening of IO and TA
LAW 5a-relaxed-BMI-42
LAW 5a-relaxed-BMI-42
LAW_5a: Morbidly obese patient, abdominal wall 2 preset, note the signal scatter and decreased vascularity of the musculature
LAW 5b-relaxed-labels-BMI-42
LAW 5b-relaxed-labels-BMI-42
LAW_5b: Previous image, muscles of lateral abdominal wall labeled
LAW 6-type-2
LAW 6-type-2
LAW_6: Physically fit patient with moderate adiposity using the abdominal wall 2 preset, note the high degree of vascularity of the musculature.
LAW 7a-81yo
LAW 7a-81yo
LAW_7a: Lean sedentary 81 Y/O patients, muscles are easily visualized but hyperechoic in nature
LAW 7b
LAW 7b
LAW_7b: The same patient as the previous image showing a common observation of an additional fascial layer that may confound correct muscle identification
LAW 7c
LAW 7c
LAW_7c: Previous image with the muscles and additional fascial layer labeled
LAW 8
LAW 8
LAW_8: Internal oblique hypertrophy noted in a relaxed muscle
LAW 9a-oblique-dominance
LAW 9a-oblique-dominance
LAW_9a: Athletic patient with relaxed muscles demonstrating hypertrophy of internal oblique
LAW 9b-oblique-dominance-labeled
LAW 9b-oblique-dominance-labeled
LAW_9b: Same image as previous with muscle layers labeled
LAW 9c-Oblique-Dominance-measure
LAW 9c-Oblique-Dominance-measure
LAW_9c: Same image as previous with cross sectional muscle thickness measurements made perpendicular to the fascial planes

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