CT analysis of the elastic deformation and elongation of the abdominal wall during colon inflation for virtual coloscopy

Mulier, J. P.; Coenegrachts, Kenneth; Moortele, Kris Van De

doi:10.1097/00003643-200805001-00132

Cited by 9 publications

(6 citation statements)

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“…With regard to obesity, only central obesity, the so-called 'apple-shaped body' (with central fat redistribution above the waist), is related to increased IAP, whereas the pear-shaped form (with peripheral fat distribution below the waist) is not (Fig. 1) [20]. The latter body shape is also associated with a better prognosis whereas the former is linked to the metabolic syndrome with diabetes, arterial hypertension, abdominal hypertension, high triglycerides, insulin resistance, and low HDL cholesterol [21−23].…”

Section: Bmi = Body Mass × Height -2 [Kg M -2 ]mentioning

confidence: 99%

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The role of abdominal compliance, the neglected parameter in critically ill patients — a consensus review of 16. Part 2: measurement techniques and management recommendations

Malbrain¹,

Laet²,

Waele³

et al. 2014

Anaesthesiol Intensive Ther

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The recent definitions on intra-abdominal pressure (IAP), intra-abdominal volume (IAV) and abdominal compliance (C ab ) are a step forward in understanding these important concepts. They help our understanding of the pathophysiology, aetiology, prognosis, and treatment of patients with low C ab . However, there is still a relatively poor understanding of the different methods used to measure IAP, IAV and C ab and how certain conditions may affect the results. This review will give a concise overview of the different methods to

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Section: Bmi = Body Mass × Height -2 [Kg M -2 ]mentioning

confidence: 99%

“…• Male gender • Old age (loss of elastic recoil) [17] • Obesity (weight, BMI) [78−80] • Android composition (sphere, apple shape) [15,20,78,79] • Increased visceral fat • Waist-to-hip ratio > 1 • Short stature…”

Section: A Related To Anthropomorphy and Demographicsmentioning

confidence: 99%

The role of abdominal compliance, the neglected parameter in critically ill patients — a consensus review of 16. Part 2: measurement techniques and management recommendations

Malbrain¹,

Laet²,

Waele³

et al. 2014

Anaesthesiol Intensive Ther

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show abstract

“…The mathematical model of pneumoperitoneum is established before preoperative planning. The shape of artificial pneumoperitoneum is approximately ellipsoid (Mulier et al, 2008; Oda et al, 2012), so the abdominal wall is simplified to ellipsoid, defined as Eq. (1).…”

Section: The Mathematical Model Of Artificial Pneumoperitoneummentioning

confidence: 99%

Laparoscope arm automatic positioning for robot-assisted surgery based on reinforcement learning

Xin

Chen

et al. 2019

Mech. Sci.

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Abstract. Compared with the traditional laparoscopic surgery, the preoperative planning of robot-assisted laparoscopic surgery is more complex and essential. Through the analysis of the surgical procedures and surgical environment, the laparoscope arm preoperative planning algorithm based on the artificial pneumoperitoneum model, lesion parametrization model is proposed, which ensures that the laparoscope arm satisfies both the distance principle and the direction principle. The algorithm is divided into two parts, including the optimum incision and the optimum angle of laparoscope entry, which makes the laparoscope provide a reasonable initial visual field. A set of parameters based on the actual situation is given to illustrate the algorithm flow in detail. The preoperative planning algorithm offers significant improvements in planning time and quality for robot-assisted laparoscopic surgery. The improved method which combines the preoperative planning algorithm with deep deterministic policy gradient algorithm is applied to laparoscope arm automatic positioning for the robot-assisted laparoscopic surgery. It takes a fixed-point position and lesion parameters as input, and outputs the optimum incision, the optimum angle and motor movements without kinematics. The proposed algorithm is verified through simulations with a virtual environment built by pyglet. The results validate the correctness, feasibility, and robustness of this approach.

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“…During the stretching phase, the shape of the abdomen will change from elliptical to spherical. This change in shape is mainly due to an increase in the antero-posterior diameter and a decrease in the transverse diameter (transverse plane) of the internal abdominal perimeter [8][9][10][11][12].…”

Section: Abdominal Pv Relationshipmentioning

confidence: 99%

The Neglected Role of Abdominal Compliance in Organ-Organ Interactions

Malbrain¹,

Peeters²,

Wise³

2016

Annual Update in Intensive Care and Emergency Medicine

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CT analysis of the elastic deformation and elongation of the abdominal wall during colon inflation for virtual coloscopy

Cited by 9 publications

References 0 publications

The role of abdominal compliance, the neglected parameter in critically ill patients — a consensus review of 16. Part 2: measurement techniques and management recommendations

The role of abdominal compliance, the neglected parameter in critically ill patients — a consensus review of 16. Part 2: measurement techniques and management recommendations

Laparoscope arm automatic positioning for robot-assisted surgery based on reinforcement learning

The Neglected Role of Abdominal Compliance in Organ-Organ Interactions

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