Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence. Fitts, M., Breton, E., Kholmovski, E., Dosdall, D., Vijayakumar, S., Hong, K., Ranjan, R., Marrouche, N., Axel, L., & Kim, D. j-MRM, 70(5):1274–1282, Nov, 2013. bibtex @Article{RSM:Fit2013,
author = "M. Fitts and E. Breton and E.G. Kholmovski and D.J.
Dosdall and S. Vijayakumar and K.P. Hong and R. Ranjan and
N.F. Marrouche and L. Axel and D. Kim",
title = "Arrhythmia insensitive rapid cardiac T1 mapping pulse
sequence.",
journal = j-MRM,
year = "2013",
month = "Nov",
volume = "70",
number = "5",
pages = "1274--1282",
robnote = "PURPOSE: To develop an arrhythmia-insensitive rapid (AIR)
cardiac T1 mapping pulse sequence for quantification of
diffuse fibrosis. METHODS: An arrhythmia-insensitive
cardiac T1 mapping pulse sequence was developed based on
saturation recovery T1 weighting, which is inherently
insensitive to heart rate and rhythm, and two single-shot
balanced steady-state free precession image acquisitions
with centric k-space ordering, where T1 calculation is
inherently insensitive to T2 effects. Its performance
against conventional cardiac T1 mapping based on inversion
recovery (i.e., MOLLI) is compared. Phantom experiments
(T1 ranging from 535 to 2123 ms) were performed with heart
rate and rhythm simulated at 60 and 120 beats per minute
(bpm) and arrhythmia using an external triggering device.
Ten human subjects and 17 large animals were scanned
precontrast and 5, 10, and 15 min after contrast agent
administration. RESULTS: Compared with the reference T1
mapping, AIR yielded lower normalized root-mean-square
error than MOLLI (8\% vs. 3\%, respectively, at 60 bpm,
28\% vs. 3\%, respectively, at 120 bpm, and 22\% vs. 3\%,
respectively, at arrhythmia). In vivo studies showed that
T1 measurements made by MOLLI and AIR were strongly
correlated (r = 0.99) but in poor agreement (mean
difference = 161.8 ms, upper and lower 95\% limits of
agreements = 347.5 ms and -24.0 ms). CONCLUSION: Our AIR
pulse sequence may be clinically useful for assessment of
diffuse myocardial fibrosis in patients.",
bibdate = "Sun May 25 06:14:09 2014",
}
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{"_id":"iN9yRXMQhBGoLSME9","bibbaseid":"fitts-breton-kholmovski-dosdall-vijayakumar-hong-ranjan-marrouche-etal-arrhythmiainsensitiverapidcardiact1mappingpulsesequence-2013","downloads":0,"creationDate":"2016-07-01T21:38:33.174Z","title":"Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence.","author_short":["Fitts, M.","Breton, E.","Kholmovski, E.","Dosdall, D.","Vijayakumar, S.","Hong, K.","Ranjan, R.","Marrouche, N.","Axel, L.","Kim, D."],"year":2013,"bibtype":"article","biburl":"http://www.sci.utah.edu/~macleod/Bibtex/biglit.bib","bibdata":{"bibtype":"article","type":"article","author":[{"firstnames":["M."],"propositions":[],"lastnames":["Fitts"],"suffixes":[]},{"firstnames":["E."],"propositions":[],"lastnames":["Breton"],"suffixes":[]},{"firstnames":["E.G."],"propositions":[],"lastnames":["Kholmovski"],"suffixes":[]},{"firstnames":["D.J."],"propositions":[],"lastnames":["Dosdall"],"suffixes":[]},{"firstnames":["S."],"propositions":[],"lastnames":["Vijayakumar"],"suffixes":[]},{"firstnames":["K.P."],"propositions":[],"lastnames":["Hong"],"suffixes":[]},{"firstnames":["R."],"propositions":[],"lastnames":["Ranjan"],"suffixes":[]},{"firstnames":["N.F."],"propositions":[],"lastnames":["Marrouche"],"suffixes":[]},{"firstnames":["L."],"propositions":[],"lastnames":["Axel"],"suffixes":[]},{"firstnames":["D."],"propositions":[],"lastnames":["Kim"],"suffixes":[]}],"title":"Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence.","journal":"j-MRM","year":"2013","month":"Nov","volume":"70","number":"5","pages":"1274–1282","robnote":"PURPOSE: To develop an arrhythmia-insensitive rapid (AIR) cardiac T1 mapping pulse sequence for quantification of diffuse fibrosis. METHODS: An arrhythmia-insensitive cardiac T1 mapping pulse sequence was developed based on saturation recovery T1 weighting, which is inherently insensitive to heart rate and rhythm, and two single-shot balanced steady-state free precession image acquisitions with centric k-space ordering, where T1 calculation is inherently insensitive to T2 effects. Its performance against conventional cardiac T1 mapping based on inversion recovery (i.e., MOLLI) is compared. Phantom experiments (T1 ranging from 535 to 2123 ms) were performed with heart rate and rhythm simulated at 60 and 120 beats per minute (bpm) and arrhythmia using an external triggering device. Ten human subjects and 17 large animals were scanned precontrast and 5, 10, and 15 min after contrast agent administration. RESULTS: Compared with the reference T1 mapping, AIR yielded lower normalized root-mean-square error than MOLLI (8% vs. 3%, respectively, at 60 bpm, 28% vs. 3%, respectively, at 120 bpm, and 22% vs. 3%, respectively, at arrhythmia). In vivo studies showed that T1 measurements made by MOLLI and AIR were strongly correlated (r = 0.99) but in poor agreement (mean difference = 161.8 ms, upper and lower 95% limits of agreements = 347.5 ms and -24.0 ms). CONCLUSION: Our AIR pulse sequence may be clinically useful for assessment of diffuse myocardial fibrosis in patients.","bibdate":"Sun May 25 06:14:09 2014","bibtex":"@Article{RSM:Fit2013, \n author = \"M. Fitts and E. Breton and E.G. Kholmovski and D.J.\n Dosdall and S. Vijayakumar and K.P. Hong and R. Ranjan and\n N.F. Marrouche and L. Axel and D. Kim\",\n title = \"Arrhythmia insensitive rapid cardiac T1 mapping pulse\n sequence.\",\n journal = j-MRM,\n year = \"2013\",\n month = \"Nov\",\n volume = \"70\",\n number = \"5\",\n pages = \"1274--1282\",\n robnote = \"PURPOSE: To develop an arrhythmia-insensitive rapid (AIR)\n cardiac T1 mapping pulse sequence for quantification of\n diffuse fibrosis. METHODS: An arrhythmia-insensitive\n cardiac T1 mapping pulse sequence was developed based on\n saturation recovery T1 weighting, which is inherently\n insensitive to heart rate and rhythm, and two single-shot\n balanced steady-state free precession image acquisitions\n with centric k-space ordering, where T1 calculation is\n inherently insensitive to T2 effects. Its performance\n against conventional cardiac T1 mapping based on inversion\n recovery (i.e., MOLLI) is compared. Phantom experiments\n (T1 ranging from 535 to 2123 ms) were performed with heart\n rate and rhythm simulated at 60 and 120 beats per minute\n (bpm) and arrhythmia using an external triggering device.\n Ten human subjects and 17 large animals were scanned\n precontrast and 5, 10, and 15 min after contrast agent\n administration. RESULTS: Compared with the reference T1\n mapping, AIR yielded lower normalized root-mean-square\n error than MOLLI (8\\% vs. 3\\%, respectively, at 60 bpm,\n 28\\% vs. 3\\%, respectively, at 120 bpm, and 22\\% vs. 3\\%,\n respectively, at arrhythmia). In vivo studies showed that\n T1 measurements made by MOLLI and AIR were strongly\n correlated (r = 0.99) but in poor agreement (mean\n difference = 161.8 ms, upper and lower 95\\% limits of\n agreements = 347.5 ms and -24.0 ms). CONCLUSION: Our AIR\n pulse sequence may be clinically useful for assessment of\n diffuse myocardial fibrosis in patients.\",\n bibdate = \"Sun May 25 06:14:09 2014\",\n}\n\n","author_short":["Fitts, M.","Breton, E.","Kholmovski, E.","Dosdall, D.","Vijayakumar, S.","Hong, K.","Ranjan, R.","Marrouche, N.","Axel, L.","Kim, D."],"key":"RSM:Fit2013","id":"RSM:Fit2013","bibbaseid":"fitts-breton-kholmovski-dosdall-vijayakumar-hong-ranjan-marrouche-etal-arrhythmiainsensitiverapidcardiact1mappingpulsesequence-2013","role":"author","urls":{},"metadata":{"authorlinks":{}},"downloads":0,"html":""},"search_terms":["arrhythmia","insensitive","rapid","cardiac","mapping","pulse","sequence","fitts","breton","kholmovski","dosdall","vijayakumar","hong","ranjan","marrouche","axel","kim"],"keywords":[],"authorIDs":[],"dataSources":["5HG3Kp8zRwDd7FotB","b2rH2vd6Bpc9f2j4b"]}