scholarly journals Semi-Automatic Algorithms for Estimation and Tracking of AP-Diameter of the IVC in Ultrasound Images

2019 ◽  
Vol 5 (1) ◽  
pp. 12
Author(s):  
Ebrahim Karami ◽  
Mohamed S. Shehata ◽  
Andrew Smith
Keyword(s):  
Heart Failure ◽  
Inferior Vena ◽  
Vena Cava ◽  
Expert Assessment ◽  
Ultrasound Images ◽  
Circulating Blood Volume ◽  
Portable Ultrasound ◽  
Manual Measurement ◽  
Circle Model ◽  
Anterior Posterior

Acutely ill patients presenting with conditions such as sepsis, trauma, and congestive heart failure require judicious resuscitation in order to achieve and maintain optimal circulating blood volume. Increasingly, emergency and critical care physicians are using portable ultrasound to approximate the temporal changes of the anterior–posterior (AP)-diameter of the inferior vena cava (IVC) in order to guide fluid administration or removal. This paper proposes semi-automatic active ellipse and rectangle algorithms capable of improved and quantified measurement of the AP-diameter. The proposed algorithms are compared to manual measurement and a previously published active circle model. Results demonstrate that the rectangle model outperforms both active circle and ellipse irrespective of IVC shape and closely approximates tedious expert assessment.

scholarly journals Semi-automatic Algorithms for Estimation and Tracking of AP-diameter of the IVC in Ultrasound Images

2018 ◽  
Author(s):  
Ebrahim Karami ◽  
Mohamed Shehata ◽  
Andrew Smith
Keyword(s):  
Inferior Vena Cava ◽  
Medical Research ◽  
Fluid Resuscitation ◽  
Critically Ill Patients ◽  
Inferior Vena ◽  
Vena Cava ◽  
Ultrasound Images ◽  
Manual Measurement ◽  
Circle Model ◽  
Anterior Posterior

Medical research has suggested that the anterior-posterior (AP)-diameter of the inferior vena cava (IVC) and its associated temporal variation as imaged by bedside ultrasound is useful in guiding fluid resuscitation of the critically-ill patients. This paper develops semi-automatic active ellipse and rectangle algorithms for measurement and tracking of the AP-diameter. The proposed algorithms are compared with an expert manual measurement and the previous work based on active circle model. It is shown that regardless of the shape of the IVC, the rectangle model always outperforms the two other models and performs very close to manual measurement.

scholarly journals Role of Lung Ultrasound and Inferior Vena Cava Diameter in Assessment of Patients with Heart Failure

2021 ◽  
Vol 85 (2) ◽  
pp. 4102-4107
Author(s):  
Hussein Abd El-Fattah Mohammed ◽  
Mohamed Salah El-Feshawy ◽  
Fareed Shawky Basiony ◽  
Mustafa Abu shady
Keyword(s):  
Heart Failure ◽  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Lung Ultrasound ◽  
Vena Cava ◽  
Patients With Heart Failure ◽  
Inferior Vena Cava Diameter

A Prospective Pilot Study of Pocket-Carried Ultrasound Pre- and Postdischarge Inferior Vena Cava Assessment for Prediction of Heart Failure Rehospitalization

2018 ◽  
Vol 24 (9) ◽  
pp. 614-617 ◽  
Author(s):  
Ehimare Akhabue ◽  
Jacob B. Pierce ◽  
Laura J. Davidson ◽  
Stuart B. Prenner ◽  
Raja K. Mutharasan ◽  
...  
Keyword(s):  
Heart Failure ◽  
Pilot Study ◽  
Inferior Vena Cava ◽  
Inferior Vena ◽  
Vena Cava ◽  
Prospective Pilot Study

scholarly journals Efficacy of Transhepatic Anterior Approach to the Inferior Vena Cava for Malignant Pheochromocytoma Invading Right Posterior Lobe of the Liver: A Case Report

2019 ◽  
Vol 103 (1-2) ◽  
pp. 80-86
Author(s):  
Gen Tsujio ◽  
Kenjiro Kimura ◽  
Yukie Tauchi ◽  
Go Ohira ◽  
Ryosuke Amano ◽  
...  
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Anterior Approach ◽  
Inferior Vena ◽  
Vena Cava ◽  
Right Hepatectomy ◽  
Liver Hanging Maneuver ◽  
Hanging Maneuver ◽  
Right Lobe ◽  
The Right

Introduction: The anterior approach to the inferior vena cava (IVC) by the liver hanging maneuver is effective in resecting large retrohepatic tumors without mobilizing the right lobe. Case presentation: A 50-year-old man was referred to our hospital with a diagnosis of pheochromocytoma. He had severe congestive heart failure and cardiac ejection fraction was 15%. Abdominal magnetic resonance imaging (MRI) and ultrasonography (US) showed an adrenal mass about 80 mm in diameter. The tumor-infiltrated posterior segment of the right hepatic lobe and tumor were widely attached to the IVC. After treatment of congestive heart failure with conservative therapy, surgery was planned. Right adrenectomy and right hepatectomy were performed, the latter using the liver hanging maneuver to avoid mobilizing the right lobe, and we were able to minimize blood pressure fluctuations and perform the operation safely. The histopathologic diagnosis was malignant pheochromocytoma. Conclusions: We performed right hepatectomy without mobilizing the right lobe by the liver hanging maneuver and minimized stimulation of the tumor. We could perform the operation safely using the liver hanging maneuver, which seems effective in such cases.

Increased Excretion of Aldosterone in Urine From Dogs With Right-Sided Congestive Heart Failure and From Dogs With Thoracic Inferior Vena Cava Constriction

1956 ◽  
Vol 187 (1) ◽  
pp. 45-50 ◽  
Author(s):  
James O. Davis ◽  
M. Jay Goodkind ◽  
Maurice M. Pechet ◽  
Wilmot C. Ball
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Inferior Vena Cava ◽  
Cardiac Failure ◽  
Inferior Vena ◽  
Vena Cava ◽  
Bilateral Adrenalectomy ◽  
Chromatographic Fractionation

Extracts of urine from 11 normal dogs, 9 dogs with cardiac failure and 10 dogs with thoracic inferior vena cava constriction and ascites were assayed for aldosterone-like activity. The activity in urine from dogs with heart failure and from dogs with thoracic caval constriction was equivalent to 52 and 167 µg/day of DCA, respectively, and renal Na excretion was uniformly low. No activity was detected in 4 days' urine from normal dogs but chromatographic fractionation and assay of a 26-day collection of normal dog urine showed Na-retaining and increased K-excreting activity in the aldosterone fraction only. Following bilateral adrenalectomy and discontinuation of DCA therapy in 2 dogs with caval constriction, all urinary aldosterone-like activity disappeared and a natriuresis occurred. Assays of chromatographic fractions of extracts of urine from dogs with heart failure and from dogs with caval constriction revealed activity only in the aldosterone fraction.

Sign in / Sign up

Export Citation Format

Share Document