Passive catheter tracking using MRI: Comparison of conventional and magnetization‐prepared FLASH

Green, Jordin D.; Omary, Reed A.; Finn, J. Paul; Tang, Richard; Li, Yongzhong; Carr, James C.; Li, Debiao

doi:10.1002/jmri.10132

Magnetic Resonance Imaging

2002

DOI: 10.1002/jmri.10132

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Passive catheter tracking using MRI: Comparison of conventional and magnetization‐prepared FLASH

Jordin D. Green

Reed A. Omary

J. Paul Finn

et al.

Abstract: Purpose:To compare a magnetization-prepared gradientecho (GRE) sequence with a conventional GRE sequence for visualizing contrast agent-filled catheters. Materials and Methods:Passive visualization of endovascular catheters using MRI was compared between two imaging sequences: 1) inversion recovery (IR)-fast low angle shot (FLASH), and 2) conventional FLASH. Two-dimensional projection images of the catheters filled with 4% diluted contrast agent in a phantom and the aorta of swine were obtained with each seque… Show more

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Cited by 21 publications

(19 citation statements)

References 15 publications

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“…Additional benefits are the superior soft-tissue contrast, the ability to acquire images in arbitrary image plane orientations, and the ability to use simultaneously generated anatomical proton road maps. Monitoring of the catheter position in vivo with MRI can be performed using catheters with incorporated radiofrequency (RF) coils (active catheter tracking) (2,5,6,18,20 -22) catheters containing a medium that alters the catheter signal to be different from that of the surrounding tissue (passive catheter tracking) (4,10,16,17,24).…”

mentioning

confidence: 99%

“…Another passive catheter-tracking technique uses catheters filled with paramagnetic contrast agents, utilizing the shortening of the T1-relaxation time compared to surrounding tissue (10,17,24). This technique permits visualization of the entire catheter length without risk of intravascular heating.…”

mentioning

confidence: 99%

“…This technique permits visualization of the entire catheter length without risk of intravascular heating. However, in order to obtain a sufficiently high catheter signal relative to the surrounding tissue signal, this technique may require a catheter diameter that is too large for the catheter to access several of the blood vessels in the body (10).…”

mentioning

confidence: 99%

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Passive catheter tracking during interventional MRI using hyperpolarized ¹³C

Magnusson

Johansson

Månsson

et al. 2007

Magnetic Resonance in Med

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Interventional procedures in MRI can be performed preclinically using active or passive catheter-tracking methods. A novel passive nonproton technique is suggested that uses a catheter filled with a hyperpolarized 13 C contrast agent. A prototype three-lumen catheter was built with two closed lumens containing a flowing hyperpolarized 13 C contrast agent. Entire-length 13 C catheter projection visualization could be performed in vivo with a catheter SNR of ϳ80, one dual projection frame per ϳ700 ms, and an in-plane resolution of 2 ؋ 2 mm 2 while traveling through the aorta of a pig. The traveling path of the 13

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confidence: 99%

mentioning

confidence: 99%

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Passive catheter tracking during interventional MRI using hyperpolarized ¹³C

Magnusson

Johansson

Månsson

et al. 2007

Magnetic Resonance in Med

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“…Cardiovascular intervention can be performed under MRI guidance using either active-or passive-tracking methods (6,7). With passive tracking, various strategies (e.g., filling the catheter with contrast medium (8,9)) are utilized to visualize the tip of the catheter. However, to date there has been no report on the feasibility of performing cardiac and coronary catheterization under real-time MR guidance using only the native susceptibility artifacts of standard X-ray angiographic catheters.…”

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confidence: 99%

In vivo cardiovascular catheterization under real‐time MRI guidance

Zhang

Rafie

Hillenbrand

et al. 2006

Magnetic Resonance Imaging

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Purpose: To test the hypothesis that cardiac and coronary catheterization can be successfully performed under realtime MR guidance using a conventional x-ray angiographic catheter. Materials and Methods:Cardiac and coronary catheterization was conducted on eight farm pigs using a real-time True FISP sequence. A pigtail catheter was used for both left-and right-heart catheterizations performed on all eight animals, while an Amplatz or Judkins catheter was used for the right coronary catheterization that was attempted on five animals. The intravascular devices were visualized by means of their native susceptibility artifacts. For right coronary artery catheterizations, 25% diluted gadolinium (Gd) contrast material was injected to confirm engagement of the right coronary artery.Results: Cardiac catheterization of both the right-and leftheart chambers was successfully performed in all eight pigs. In addition, right coronary catheterization was successfully completed in four of the five pigs in which it was attempted. The procedure time for cardiac catheterization was one minute, while the time range required for coronary catheterization was 32-91 minutes. Conclusion:This work demonstrates that MRI-guided cardiac catheterization using conventional X-ray angiographic catheters is feasible; however, coronary catheterization with this passive-tracking technique is limited. CARDIOVASCULAR DISEASE is the leading cause of death in western countries. According to the American Heart Association, more than 1.3 million cardiovascular catheterizations are performed annually in the United States for diagnostic purposes, while more than 2 million are performed for interventional therapeutic purposes (1). To date, x-ray fluoroscopy remains the gold standard for guiding cardiovascular interventions. However, traditional X-ray fluoroscopy is limited as an imaging modality for studying the anatomy, function, and perfusion of the heart. Furthermore, fluoroscopy cannot provide high-resolution or high-contrast imaging of the artery wall, which therefore precludes the study of atherosclerotic plaque composition and the monitoring of local treatment delivery. The ionized contrast agent required and the subsequent radiation exposure are additional disadvantages of X-ray fluoroscopy. Because it offers excellent tissue contrast and flow sensitivity, MRI is a powerful tool for visualizing vessel walls and characterizing atherosclerotic plaque (2,3). In addition to being a radiation-free imaging modality, MRI is superior to conventional X-rays for demonstrating not only the vessel lumen but also the vessel wall. With the development of rapid image-acquisition techniques, recent studies (5,6) have explored cardiovascular catheterization under MRI guidance. Cardiovascular intervention can be performed under MRI guidance using either active-or passive-tracking methods (6,7). With passive tracking, various strategies (e.g., filling the catheter with contrast medium (8,9)) are utilized to visualize the tip of the catheter. However, to date there ha...

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“…This increased sensitivity detects smaller diameter catheters at higher temporal resolutions than passive tracking methods. 3,5,10 Unlike tracking techniques using active catheters, [11][12][13] no special catheters are required with this combined approach.Typical active guidewire tracking approaches have used spoiled gradient echo imaging. 4,14 We prefer TrueFISP because it is more sensitive to susceptibility changes in the vicinity of the guidewire and thus allows more consistent depiction of the guidewire itself rather than just the surrounding tissue.…”

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confidence: 99%

Real-Time Magnetic Resonance Imaging-Guided Coronary Catheterization in Swine

Omary¹,

Green²,

Schirf³

et al. 2003

Circulation

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Background-We tested the hypothesis that real-time magnetic resonance imaging (MRI) can guide coronary artery catheterization in swine via a percutaneous femoral artery approach. Methods and Results-In 12 pigs, we accessed femoral arteries percutaneously. We used 6-or 7-French coronary Judkins catheters filled with dilute 4% gadolinium (Gd) contrast agent and coaxially inserted 0.030-inch diameter active guidewires as endovascular devices. For catheter tracking, we used a 2-dimensional (2D) inversion recovery-prepared spoiled gradient echo sequence at a temporal resolution of 7 frames/s. For guidewire tracking, we used 2D steady-state free precession imaging at a temporal resolution of 9 frames/s. Coronary artery catheterization under MRI guidance was successful in 12/12 pigs. Successful coronary catheterization was verified by obtaining MR angiographic images after direct catheter-based injections of dilute Gd. Conclusions-Real-time MRI-guided catheterization of coronary arteries in swine is feasible via a percutaneous femoral artery approach. Selective coronary MR angiography can then be performed with dilute contrast agent injections. Key Words: magnetic resonance imaging Ⅲ catheterization Ⅲ arteries Ⅲ angiography M agnetic resonance imaging (MRI) guidance for diagnostic and therapeutic endovascular procedures has several potential advantages over conventional x-ray guidance. Compared with x-ray guidance, MRI (1) avoids ionizing radiation exposure; (2) limits potential nephrotoxic effects and allergic reactions of iodinated contrast agents; (3) provides 3-dimensional anatomic information; and (4) has the ability to measure changes in end-organ function. Catheterbased coronary MR angiography (MRA) is feasible using dilute contrast agent injections. 1 However, MRI-guided catheterization of the coronary arteries is difficult because limited signal detection constrains spatial and temporal resolution for device tracking. An active internal guidewire used in conjunction with a contrast agent-filled catheter is one approach 2 to improve signal detection of endovascular devices. Using this approach, we tested the hypothesis that MRI can successfully guide real-time coronary catheterization in swine. MethodsOur institution's Animal Care and Use Committee approved all animal experiments. We performed experiments in 12 healthy domestic female swine (22 to 35 kg; Oak Hill Genetics, Ewing, Ill). After endotracheal intubation, they received inhaled isoflurane during mechanical ventilation. In our animal laboratory, sonography was used to guide percutaneous common femoral artery puncture.After placing 6-to 8-French vascular sheaths under x-ray guidance, we administered intravenous heparin 5000 U. Preliminary coronary x-ray angiography was performed with a Judkins catheter (curve sizes 2.5 to 3.5) and the catheter was removed. We then transferred the animals to a 1.5 T MRI scanner (Sonata, Siemens) for subsequent experiments.For real-time catheter tracking, we used an 80-cm length 6-or 7-French Judkins coronary catheter (Co...

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Passive catheter tracking using MRI: Comparison of conventional and magnetization‐prepared FLASH

Cited by 21 publications

References 15 publications

Passive catheter tracking during interventional MRI using hyperpolarized ¹³C

Passive catheter tracking during interventional MRI using hyperpolarized ¹³C

In vivo cardiovascular catheterization under real‐time MRI guidance

Real-Time Magnetic Resonance Imaging-Guided Coronary Catheterization in Swine

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Passive catheter tracking using MRI: Comparison of conventional and magnetization‐prepared FLASH

Cited by 21 publications

References 15 publications

Passive catheter tracking during interventional MRI using hyperpolarized 13C

Passive catheter tracking during interventional MRI using hyperpolarized 13C

In vivo cardiovascular catheterization under real‐time MRI guidance

Real-Time Magnetic Resonance Imaging-Guided Coronary Catheterization in Swine

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Product

Resources

About

Passive catheter tracking during interventional MRI using hyperpolarized ¹³C

Passive catheter tracking during interventional MRI using hyperpolarized ¹³C