Video-assisted cardioscopy in congenital heart operations

Burke, Redmond P.; Michielon, Guido; Wernovsky, Gil

doi:10.1016/0003-4975(94)90768-4

Cited by 64 publications

(22 citation statements)

References 6 publications

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“…Each year approximately 300 to 400 patients in the United Kingdom undergo surgical closure of an ASD using standard sternotomy 2. The development of new techniques of ASD closure including minimal access surgery3 4 and percutaneous catheter closure5-8 has increased the need for accurate assessment not only of ASD size but also ASD morphology and its spatial relations 79 10 Currently, several techniques are used to image or size ASDs: echocardiography,11-14 magnetic resonance imaging (MRI),15 16 or balloon sizing during heart catheterisation.…”

mentioning

confidence: 99%

Assessment of atrial septal defect morphology by transthoracic three dimensional echocardiography using standard grey scale and Doppler myocardial imaging techniques: comparison with magnetic resonance imaging and intraoperative findings

Lange

Walayat

Turnbull

et al. 1997

Heart

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Objective-To determine whether transthoracic three dimensional echocardiography is an accurate non-invasive technique for defining the morphology of atrial septal defects (ASD). Methods-In 34 patients with secundum ASD, mean (SD) age 20 (17) years (14 male, 20 female), the measurements obtained from three dimensional echocardiography were compared to those obtained from magnetic resonance imaging (MRI) or surgery. Three dimensional images were constructed to simulate the ASD view as seen by a surgeon. Measured variables were: maximum and minimum vertical and horizontal ASD dimension, and distances to inferior and superior vena cava, coronary sinus, and tricuspid valve. In each patient two ultrasound techniques were used to acquire three dimensional data: standard grey scale imaging (GSI) and Doppler myocardial imaging (DMI). Results-Good correlation was found in maximum ASD dimension (both horizontal and vertical) between three dimensional echocardiography and both MRI (GSI r = 0.96, SEE = 0.05 cm; DMI r = 0.97, SEE = 0.04 cm) and surgery (GSI r = 0.92, SEE = 0.06 cm; DMI r = 0.95, SEE = 0.06 cm). The systematic error was similar for both three dimensional techniques when compared to both MRI (GSI = 0.40 cm (27%); DMI = 0.38 cm (25%)) and surgery (GSI = 0.50 cm (29%); DMI = 0.37 cm (22%)). A significant diVerence was found in both horizontal and vertical ASD dimension changes during the cardiac cycle. This change was inversely correlated with age. These findings were consistent for both DMI and GSI technique. In children (age < 17 years), the feasibility of detecting structures and undertaking measurements was similar for both echo techniques. However, in adult ASD patients (age > 18 years) this feasibility was higher for DMI than for GSI. Conclusions-Transthoracic three dimensional imaging using both GSI and DMI accurately displayed the varying morphology, dimensions, and spatial relations of ASD. However, DMI was a more eVective technique than GSI in describing ASD morphology in adults.

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mentioning

confidence: 99%

Assessment of atrial septal defect morphology by transthoracic three dimensional echocardiography using standard grey scale and Doppler myocardial imaging techniques: comparison with magnetic resonance imaging and intraoperative findings

Lange

Walayat

Turnbull

et al. 1997

Heart

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“…2 Watanabe et al used a needle-type endoscope that was 1.7 mm in diameter for congenital heart surgery. 3 The endoscope was inserted into the aorta through a purse-string suture to measure the degree of aortic insuffi ciency associated with a ventricular septal defect in the beating heart.…”

Section: Discussionmentioning

confidence: 99%

Video-assisted transaortic left ventricular thrombectomy and coronary artery bypass grafting

Kikuchi

Shimada

Nakayama

et al. 2009

Gen Thorac Cardiovasc Surg

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A 59-year-old man with cardiac dysfunction was admitted to our hospital because of thrombus formation in the left ventricle 10 days following acute myocardial infarction. Echocardiography revealed evidence of two mobile thrombi, each measuring about 2 cm in diameter. Urgent coronary artery bypass grafting and video-assisted transaortic thrombectomy were performed without making a left ventricular incision to preserve his cardiac function. Endoscopy was useful for visualizing the anatomical structures in the left ventricular cavity.

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“…These are commonly used for image guidance during diagnostic and surgical procedures, 21,42,43 and can be designed to obtain either forward or side images. The resolution of a videoscope largely depends on the number of pixels in the CCD used.…”

Section: Survey Of Conventional Optical Endoscopic Methodsmentioning

confidence: 99%

“…In comparison, optical imaging techniques that include conventional endoscopy, 20,21 and fluorescence, 22 confocal, 23 and multiphoton microscopy 24,25 as well as optical coherence tomography ͑OCT͒ 26 can offer higher sensitivity as well as higher spatial resolution. In addition to tissue reflectance, optical methods also enable access to spectroscopic data representative of tissue physiological function.…”

Section: Introductionmentioning

confidence: 99%

Methods and application areas of endoscopic optical coherence tomography

et al. 2006

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Abstract. We review the current state of research in endoscopic optical coherence tomography ͑OCT͒. We first survey the range of available endoscopic optical imaging techniques. We then discuss the various OCT-based endoscopic methods that have thus far been developed. We compare the different endoscopic OCT methods in terms of their scan performance. Next, we examine the application range of endoscopic OCT methods. In particular, we look at the reported utility of the methods in digestive, intravascular, respiratory, urinary and reproductive systems. We highlight two additional applications-biopsy procedures and neurosurgery-where sufficiently compact OCTbased endoscopes can have significant clinical impacts.

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Video-assisted cardioscopy in congenital heart operations

Cited by 64 publications

References 6 publications

Assessment of atrial septal defect morphology by transthoracic three dimensional echocardiography using standard grey scale and Doppler myocardial imaging techniques: comparison with magnetic resonance imaging and intraoperative findings

Assessment of atrial septal defect morphology by transthoracic three dimensional echocardiography using standard grey scale and Doppler myocardial imaging techniques: comparison with magnetic resonance imaging and intraoperative findings

Video-assisted transaortic left ventricular thrombectomy and coronary artery bypass grafting

Methods and application areas of endoscopic optical coherence tomography

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