Differences in Pulmonary and Systemic Flow Measurements by Cardiac Magnetic Resonance vs Cardiac Catheterization and Relation to Collateral Flow in Single Ventricle Patients

Background The interventional cardiac magnetic resonance imaging suite combines a cardiac catheterization x-ray laboratory with a magnetic resonance imaging suite. At the study institution, interventional cardiac magnetic resonance imaging procedures (ie, magnetic resonance imaging–guided cardiac catheterizations) have been performed under institutional review board–approved research protocols since 2015. Because the workplace incorporates x-ray and magnetic resonance imaging in a highly technical environment, education about the importance of magnet safety is crucial to ensure the safety of patients and staff. Objective To promote magnetic resonance imaging safety and staff preparedness to respond in emergency situations in a specialized interventional cardiac magnetic resonance imaging environment. Methods Quarterly in situ evacuation drills with a live volunteer were implemented. A retrospective participant survey using a Likert scale was conducted. Evacuations were timed from the cardiac arrest code alert to safe evacuation or defibrillation if appropriate. Results Over 4 years, 14 drills were performed. Twenty-nine of 48 participants responded to the survey, a 60% response rate. Most participants agreed or strongly agreed that the drills were a positive experience (90%) and that the drills increased their confidence in their ability to perform in an evacuation scenario (100%). Room evacuation times improved from 71 to 41 seconds. No patient or staff safety events occurred in the interventional cardiac magnetic resonance imaging environment. Conclusion Magnetic resonance imaging–guided cardiac catheterization evacuation drills promote preparedness, ensure patient and staff safety, and improve evacuation time in the interventional cardiac magnetic resonance imaging environment.

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Cardiac magnetic resonance-derived Cardiac Index is associated with adverse outcomes in patients with single-ventricle Fontan circulation: a preliminary study

Kardiologia Polska ◽

10.33963/kp.15822 ◽

2021 ◽

Author(s):

Małgorzata Kowalczyk ◽

Piotr Zieliński ◽

Magdalena Marczak ◽

Katarzyna Kożuch ◽

Magdalena Lipczyńska ◽

...

Keyword(s):

Cardiac Magnetic Resonance ◽

Magnetic Resonance ◽

Cardiac Index ◽

Single Ventricle ◽

Fontan Circulation ◽

Adverse Outcomes ◽

Preliminary Study

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Segmentation of cardiac magnetic resonance cine images of single ventricle: including or excluding the accessorial ventricle?

The International Journal of Cardiovascular Imaging ◽

10.1007/s10554-014-0438-4 ◽

2014 ◽

Vol 30 (6) ◽

pp. 1117-1124 ◽

Cited By ~ 5

Author(s):

Francesco Secchi ◽

Elda Chiara Resta ◽

Giovanni Di Leo ◽

Marcello Petrini ◽

Carmelo Messina ◽

...

Keyword(s):

Cardiac Magnetic Resonance ◽

Magnetic Resonance ◽

Single Ventricle

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Assessment of flow pattern of right ventricle outflow and pulmonary arteries in surgically corrected tetralogy of Fallot patients by four-dimensional cardiac magnetic resonance flow

The Egyptian Heart Journal ◽

10.1186/s43044-020-00092-y ◽

2020 ◽

Vol 72 (1) ◽

Author(s):

Mahmoud Shaaban ◽

Mai Salama ◽

Ayman Alsaied ◽

Raghda Elsheikh ◽

Magdy Elmasry

Keyword(s):

Cardiac Magnetic Resonance ◽

Magnetic Resonance ◽

Right Ventricle ◽

Tetralogy Of Fallot ◽

Pulmonary Arteries ◽

Pulmonary Regurgitation ◽

Peak Systolic Velocity ◽

Volume Index ◽

Flow Measurements ◽

Good Agreement

Abstract Background The most common post-surgical complication of tetralogy of Fallot (TOF) is pulmonary regurgitation (PR) which can lead to right ventricle (RV) dysfunction/failure. Cardiac magnetic resonance (CMR) is the imaging modality of choice to follow-up a repaired TOF. However, the conventional two-dimensional phase-contrast (2D-PC) flow usually underestimates PR as well as the pulmonary peak systolic velocity (PSV). Recently, four-dimensional (4D) CMR flow is introduced for more accurate quantitative flow assessment. This work aimed to compare between 4D-CMR and 2D-PC flow across the main (MPA), right (RPA), and left (LPA) pulmonary arteries (PAs) in surgically corrected TOF patients. Results This study was conducted on 20 repaired TOF patients (range 3–9 years, 50% males). All patients had CMR exam on 1.5T scanner. 4D-CMR and 2D-PC flows were obtained at the proximal segments of the MPA, RPA, and LPA. The stroke volume index (SVI), regurgitation fraction (RF), and PSV measured by 4D-CMR were compared to 2D-PC flow. The SVI across the PAs was nearly similar between both methods (P = 0.179 for MPA, 0.218 for RPA, and 0.091 for LPA). However, the RF was significantly higher by 4D-CMR in comparison to 2D-PC flow (P = 0.027 for MPA, 0.039 for RPA, and 0.046 for LPA). The PSV as well was significantly higher by 4D-CMR flow (P = 0.003 for MPA, < 0.001 for RPA, and 0.002 for LPA). The Bland-Altman plots showed a good agreement between 4D-CMR and 2D-PC flow for the SVI, RF, and PSV across the pulmonary arteries. Conclusion A good agreement existed between the two studied methods regarding pulmonary flow measurements. Because of its major advantage of performing a comprehensive flow assessment in a shorter time, 4D-CMR flow plays an important role in the assessment of patients with complex CHD especially in the pediatric group.

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