Dynamic three-dimensional reconstruction of ICUS images based on an ECG-gated pull-back device

Bruining, Nico; Birgelen, Clemens von; Prati, Francesco; Mallus, Maria Teresa; Li, W.; Hoed, W. Den; Patijn, M.; Feyter, Pim J. de; Serruys, Patrick W.; Roelandt, J. R. T. C.

doi:10.1109/iembs.1996.651917

Cited by 16 publications

(22 citation statements)

References 2 publications

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“…ECG-gated image acquisition with a novel method [15] allows compilation of images of the same phase of the cardiac cycle in the 3-D image sets. This results in much smoother contours of both lumen and vascular wall in reconstructed longitudinal views and facilitates automated contour-detection with the computerized analysis system applied [14].…”

Section: Discussionmentioning

confidence: 99%

“…The ECG-gated image acquisition and digitization were performed by a 3-D image acquisition workstation [14,15] (EchoScan, TomTec, Munich, Germany), which received the video signal input from the ICUS machine and the ECG signal from the patient. This system steered the ECG-gated stepping pullback device to withdraw the imaging transducer through the stationary-imaging sheath.…”

Section: Icus Image Acquisitionmentioning

confidence: 99%

“…Image artifacts that result from cyclic changes in coronary dimensions and the movement of the ICUS catheter relative to the vessel wall represent potential limitations for the feasibility of 3-D boundarydetection systems [11]. A novel approach limits cyclic movement artifacts by use of an ECG-gated image acquisition workstation that controls a dedicated pullback device [13,15] and permits the application of an analysis program for automated boundary detection in the 3-D ICUS image sets [12,14]. In this study, we acquired (1) nongated and (2) ECG-gated 3-D image sets of 15 atherosclerotic coronary segments of patients undergoing catheter-based coronary interventions and performed computer-assisted measurements of the lumen and total vessel volumes to evaluate potential differences between the nongated and ECG-gated approach.…”

Section: Introductionmentioning

confidence: 99%

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ECG-gated versus nongated three-dimensional intracoronary ultrasound analysis: Implications for volumetric measurements

Bruining

Birgelen

Feyter

et al. 1998

Cathet. Cardiovasc. Diagn.

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The quantitative analysis of a three‐dimensional (3‐D) intracoronary ultrasound (ICUS) image data set permits a more comprehensive assessment of coronary arterial segments. The 3‐D image sets are generally acquired during continuous motorized pullbacks. However, the cyclic changes of vascular dimensions and the cyclic spatial displacement of the ICUS transducer relative to the vessel wall can result in characteristic image artifacts, which may limit the applicability of quantitative automated analysis systems. This limitation may be overcome by an ECG‐gated image acquisition. In the present study we acquired in vivo (1) nongated and (2) ECG‐gated 3‐D ICUS image sets of 15 human atherosclerotic coronary arteries and performed a computer‐assisted contour detection of the lumen and total vessel boundaries. Total vessel and lumen volumes measured significantly larger in the nongated versus ECG‐gated end‐diastolic image sets (753 ± 307 mm3 vs. 705 ± 305 mm3; 411 ± 154 mm3 vs. 388 ± 165 mm3, both: P < 0.05). Both end‐diastolic and systolic measurements were available in nine arteries, showing a larger total vessel and lumen volume at systole (664 ± 221 mm3 vs. 686 ± 227 mm3, P = 0.03; 384 ± 164 mm3 vs. 393 ± 170 mm3, P = 0.08). The differences observed may be of particular interest for volumetric ICUS studies, addressing presumably small differences in vessel or lumen dimensions. Cathet. Cardiovasc. Diagn. 43:254–260, 1998. © 1998 Wiley‐Liss, Inc.

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Section: Discussionmentioning

confidence: 99%

Section: Icus Image Acquisitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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ECG-gated versus nongated three-dimensional intracoronary ultrasound analysis: Implications for volumetric measurements

Bruining

Birgelen

Feyter

et al. 1998

Cathet. Cardiovasc. Diagn.

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“…Then, the catheter was pulled back by 0.5 mm with a stepping motor. 12 The ECG and stepping pulses were recorded by ACODAS for synchronization purposes. IVUS images were digitally stored (8 bits, 256ϫ256 pixels) in a personal computer.…”

Section: Acquisition Of Ivus Imagesmentioning

confidence: 99%

True 3-Dimensional Reconstruction of Coronary Arteries in Patients by Fusion of Angiography and IVUS (ANGUS) and Its Quantitative Validation

et al. 2000

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Background-True 3D reconstruction of coronary arteries in patients based on intravascular ultrasound (IVUS) may be achieved by fusing angiographic and IVUS information (ANGUS). The clinical applicability of ANGUS was tested, and its accuracy was evaluated quantitatively. Methods and Results-In 16 patients who were investigated 6 months after stent implantation, a sheath-based catheter was used to acquire IVUS images during an R-wave-triggered, motorized stepped pullback. First, a single set of end-diastolic biplane angiographic images documented the 3D location of the catheter at the beginning of pullback. From this set, the 3D pullback trajectory was predicted. Second, contours of the lumen or stent obtained from IVUS were fused with the 3D trajectory. Third, the angular rotation of the reconstruction was optimized by quantitative matching of the silhouettes of the 3D reconstruction with the actual biplane images. Reconstructions were obtained in 12 patients. The number of pullback steps, which determines the pullback length, closely agreed with the reconstructed path length (rϭ0.99). Geometric measurements in silhouette images of the 3D reconstructions showed high correlation (0.84 to 0.97) with corresponding measurements in the actual biplane angiographic images. Conclusions-With

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“…General programs for three-dimensional presentation can display oblique and tangential cuts through the reconstructed structures, comparable to the display options available in magnetic resonance imaging systems. A dynamic visualization of the artery after ECG-gated image acquisition is also possible' 24 '.…”

Section: Image Reconstruction and Displaymentioning

confidence: 99%

Reconstruction and quantification with three-dimensional intracoronary ultrasound: An update on techniques, challenges, and future directions

Birgelen

Mintz

Feyter³

et al. 1997

European Heart Journal

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Dynamic three-dimensional reconstruction of ICUS images based on an ECG-gated pull-back device

Cited by 16 publications

References 2 publications

ECG-gated versus nongated three-dimensional intracoronary ultrasound analysis: Implications for volumetric measurements

ECG-gated versus nongated three-dimensional intracoronary ultrasound analysis: Implications for volumetric measurements

True 3-Dimensional Reconstruction of Coronary Arteries in Patients by Fusion of Angiography and IVUS (ANGUS) and Its Quantitative Validation

Reconstruction and quantification with three-dimensional intracoronary ultrasound: An update on techniques, challenges, and future directions

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