OC-0163: 4DCT motion analysis of distinct liver regions during respiration with and without abdominal compression

Magnitude and influencing factors of respiration-induced liver motion during abdominal compression in patients with intrahepatic tumors

PURPOSE The purpose of this study was to use 4-dimensional-computed tomography (4D-CT) to evaluate respiration-induced liver motion magnitude and influencing factors in patients with intrahepatic tumors undergoing abdominal compression. METHODS From January 2012 to April 2016, 99 patients with intrahepatic tumors were included in this study. They all underwent 4D-CT to assess respiratory live...

Reliability of Eelectromyography of Abdominal Muscles During Abdominal Manoeuvre with and without Pelvic Floor Muscle Contraction

Objective: The purpose of this study was to determine the reliability of electromyography measurements of abdominal muscles activity during different manoeuvres (pelvic floor muscle (PFM) contraction, abdominal hollowing and abdominal bracing with and without PFM contraction) in subjects with and without chronic low back pain (LBP). Materials & Methods: In this methodology research 21 subjec...

Three-dimensional analysis of renal artery bending motion during respiration.

PURPOSE To evaluate displacement and bending of the renal arteries during respiration. METHODS Seven men (mean age 59+/-7 years, range 54-71) were imaged with contrast-enhanced magnetic resonance angiography (MRA). Two phases of the MRA were acquired during separate normal inspiration and expiration breath-holds. Displacement of the kidneys and renal ostia and changes in renal branch angle we...

Analysis of Symmetry of Weight-Bearing in Athletes With and Without Low Back Pain during Gait

Background. Low Back Pain (LBP) is a prevalent phenomenon in athletes and asymmetrical loading on the limbs has been proposed as a risk factor related to this disease. Objectives. The purpose of the present study was to compare the asymmetry of loading applied on the legs between men with and without LBP during gait. Methods. A total of 40 participants, comprising 20 men with non-specific LBP...

Abdominal compression during lung SBRT