Noninvasive, Subharmonic Intra-Cardiac Pressure Measurement

Summary

The fundamental hypothesis of this project is that real-time intracardiac pressures can be monitored and quantified noninvasively in humans using a novel contrast-enhanced ultrasound technique called subharmonic-aided pressure estimation (SHAPE).This study will use contrast echocardiography to assess the accuracy of SHAPE compared to simultaneously acquired intracardiac pressures measured invasively during cardiac catheterization. This study is designed to verify that contrast echocardiography using the SHAPE method, already proven in a canine model and tested in a human pilot study can be used as a surrogate for cardiac catheterization with sufficient accuracy to allow clinical applicability in humans.

Timeline

Start

2017-06-01

Primary completion

2019-06-26

Completion

2019-06-26

Publications

• Background Dave JK, Halldorsdottir VG, Eisenbrey JR, Liu JB, McDonald ME, Dickie K, Leung C, Forsberg F. Noninvasive estimation of dynamic pressures in vitro and in vivo using the subharmonic response from microbubbles. IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Oct;58(10):2056-66. doi: 10.1109/TUFFC.2011.2056.
• Background Dave JK, Halldorsdottir VG, Eisenbrey JR, Forsberg F. Processing of subharmonic signals from ultrasound contrast agents to determine ambient pressures. Ultrason Imaging. 2012 Apr;34(2):81-92. doi: 10.1177/016173461203400202.
• Background Dave JK, Halldorsdottir VG, Eisenbrey JR, Merton DA, Liu JB, Machado P, Zhao H, Park S, Dianis S, Chalek CL, Thomenius KE, Brown DB, Forsberg F. On the implementation of an automated acoustic output optimization algorithm for subharmonic aided pressure estimation. Ultrasonics. 2013 Apr;53(4):880-8. doi: 10.1016/j.ultras.2012.12.010. Epub 2013 Jan 2.
• Background Dave JK, Halldorsdottir VG, Eisenbrey JR, Raichlen JS, Liu JB, McDonald ME, Dickie K, Wang S, Leung C, Forsberg F. Subharmonic microbubble emissions for noninvasively tracking right ventricular pressures. Am J Physiol Heart Circ Physiol. 2012 Jul;303(1):H126-32. doi: 10.1152/ajpheart.00560.2011. Epub 2012 May 4.
• Background Dave JK, Halldorsdottir VG, Eisenbrey JR, Raichlen JS, Liu JB, McDonald ME, Dickie K, Wang S, Leung C, Forsberg F. Noninvasive LV pressure estimation using subharmonic emissions from microbubbles. JACC Cardiovasc Imaging. 2012 Jan;5(1):87-92. doi: 10.1016/j.jcmg.2011.08.017.
• Background Eisenbrey JR, Dave JK, Halldorsdottir VG, Merton DA, Miller C, Gonzalez JM, Machado P, Park S, Dianis S, Chalek CL, Kim CE, Baliff JP, Thomenius KE, Brown DB, Navarro V, Forsberg F. Chronic liver disease: noninvasive subharmonic aided pressure estimation of hepatic venous pressure gradient. Radiology. 2013 Aug;268(2):581-8. doi: 10.1148/radiol.13121769. Epub 2013 Mar 22.
• Background Forsberg F, Liu JB, Shi WT, Furuse J, Shimizu M, Goldberg BB. In vivo pressure estimation using subharmonic contrast microbubble signals: proof of concept. IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Apr;52(4):581-3. doi: 10.1109/tuffc.2005.1428040.
• Background Halldorsdottir VG, Dave JK, Leodore LM, Eisenbrey JR, Park S, Hall AL, Thomenius K, Forsberg F. Subharmonic contrast microbubble signals for noninvasive pressure estimation under static and dynamic flow conditions. Ultrason Imaging. 2011 Jul;33(3):153-64. doi: 10.1177/016173461103300301.
• Background Shi WT, Forsberg F, Raichlen JS, Needleman L, Goldberg BB. Pressure dependence of subharmonic signals from contrast microbubbles. Ultrasound Med Biol. 1999 Feb;25(2):275-83. doi: 10.1016/s0301-5629(98)00163-x.
• Background Halldorsdottir VG, Dave JK, Eisenbrey JR, Machado P, Zhao H, Liu JB, Merton DA, Forsberg F. Subharmonic aided pressure estimation for monitoring interstitial fluid pressure in tumours--in vitro and in vivo proof of concept. Ultrasonics. 2014 Sep;54(7):1938-44. doi: 10.1016/j.ultras.2014.04.022. Epub 2014 May 6.
• Esposito C, Machado P, McDonald ME, Savage MP, Fischman D, Mehrotra P, Cohen IS, Ruggiero N 2nd, Walinsky P, Vishnevsky A, Dickie K, Davis M, Forsberg F, Dave JK. Noninvasive Evaluation of Cardiac Chamber Pressures Using Subharmonic-Aided Pressure Estimation With Definity Microbubbles. JACC Cardiovasc Imaging. 2023 Feb;16(2):224-235. doi: 10.1016/j.jcmg.2022.09.013. Epub 2022 Nov 16.
• Esposito C, Machado P, Cohen IS, Mehrotra P, Savage M, Fischman D, Davis M, Ruggiero N, Walinsky P, McDonald ME, Dickie K, Forsberg F, Dave JK. Comparing Central Aortic Pressures Obtained Using a SphygmoCor Device to Pressures Obtained Using a Pressure Catheter. Am J Hypertens. 2022 May 10;35(5):397-406. doi: 10.1093/ajh/hpac010.

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