Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T

Feasibility study in patients

Khaled Z. Abd-Elmoniem, Chika C. Obele, Christopher Sibley, Jatin R. Matta, Roderic I. Pettigrew, Ahmed M. Gharib

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Cardiac magnetic resonance imaging (CMRI) is an important tool to assess cardiac function. However, one of the limitations of CMRI is the need for frequent breath-holding (BH) steps. This may be inconvenient to some patients and limit the use of this modality in patients unable to cooperate because of cognitive reasons or physically incapable of performing the required BH steps. The purpose of this study is to overcome the intrinsic timing and computation limitations of dual-navigator cine imaging and demonstrate the feasibility of free-breathing (FB) cine cardiac left ventricular function with a single-respiratory-navigator gating at 3 T. Results: Eight participants underwent cine CMRI with both the conventional 2-dimensional cine BH and FB navigator-gated techniques. Scan parameters were identical, except in the FB technique, in which a respiratory navigator and only 2 signal averages were used. Images were scored for quality. Left ventricular end-systolic volume and end-diastolic volume were calculated. The differences in the end-systolic volume and end-diastolic volume assessed by the BH and FB were not statistically significant with P = 0.9 and 0.2, respectively. There was a good agreement between LV volumes with the limits of agreement (±2 SD = ±22.36 mL). Image quality score was not significantly different (P = 0.76). Conclusions: Free-breathing cine imaging utilizing a single-respiratory- navigator gating technique is comparable to conventional BH technique in both qualitative and quantitative imaging measures. Therefore, the FB cine technique can be used as an alternative for children and patients who are unable to hold their breath.

Original languageEnglish (US)
Pages (from-to)382-386
Number of pages5
JournalJournal of Computer Assisted Tomography
Volume35
Issue number3
DOIs
StatePublished - May 2011
Externally publishedYes

Fingerprint

Breath Holding
Feasibility Studies
Respiration
Magnetic Resonance Spectroscopy
Magnetic Resonance Imaging
Cine Magnetic Resonance Imaging
Left Ventricular Function
Stroke Volume

Keywords

  • Cine cardiac MRI
  • free-breathing
  • high field
  • single navigator

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T : Feasibility study in patients. / Abd-Elmoniem, Khaled Z.; Obele, Chika C.; Sibley, Christopher; Matta, Jatin R.; Pettigrew, Roderic I.; Gharib, Ahmed M.

In: Journal of Computer Assisted Tomography, Vol. 35, No. 3, 05.2011, p. 382-386.

Research output: Contribution to journalArticle

Abd-Elmoniem, Khaled Z. ; Obele, Chika C. ; Sibley, Christopher ; Matta, Jatin R. ; Pettigrew, Roderic I. ; Gharib, Ahmed M. / Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T : Feasibility study in patients. In: Journal of Computer Assisted Tomography. 2011 ; Vol. 35, No. 3. pp. 382-386.
@article{d5e9690bc14b49329f4c675d965a179e,
title = "Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T: Feasibility study in patients",
abstract = "Background: Cardiac magnetic resonance imaging (CMRI) is an important tool to assess cardiac function. However, one of the limitations of CMRI is the need for frequent breath-holding (BH) steps. This may be inconvenient to some patients and limit the use of this modality in patients unable to cooperate because of cognitive reasons or physically incapable of performing the required BH steps. The purpose of this study is to overcome the intrinsic timing and computation limitations of dual-navigator cine imaging and demonstrate the feasibility of free-breathing (FB) cine cardiac left ventricular function with a single-respiratory-navigator gating at 3 T. Results: Eight participants underwent cine CMRI with both the conventional 2-dimensional cine BH and FB navigator-gated techniques. Scan parameters were identical, except in the FB technique, in which a respiratory navigator and only 2 signal averages were used. Images were scored for quality. Left ventricular end-systolic volume and end-diastolic volume were calculated. The differences in the end-systolic volume and end-diastolic volume assessed by the BH and FB were not statistically significant with P = 0.9 and 0.2, respectively. There was a good agreement between LV volumes with the limits of agreement (±2 SD = ±22.36 mL). Image quality score was not significantly different (P = 0.76). Conclusions: Free-breathing cine imaging utilizing a single-respiratory- navigator gating technique is comparable to conventional BH technique in both qualitative and quantitative imaging measures. Therefore, the FB cine technique can be used as an alternative for children and patients who are unable to hold their breath.",
keywords = "Cine cardiac MRI, free-breathing, high field, single navigator",
author = "Abd-Elmoniem, {Khaled Z.} and Obele, {Chika C.} and Christopher Sibley and Matta, {Jatin R.} and Pettigrew, {Roderic I.} and Gharib, {Ahmed M.}",
year = "2011",
month = "5",
doi = "10.1097/RCT.0b013e31821b0ade",
language = "English (US)",
volume = "35",
pages = "382--386",
journal = "Journal of Computer Assisted Tomography",
issn = "0363-8715",
publisher = "Lippincott Williams and Wilkins",
number = "3",

}

TY - JOUR

T1 - Free-breathing single navigator gated cine cardiac magnetic resonance at 3 T

T2 - Feasibility study in patients

AU - Abd-Elmoniem, Khaled Z.

AU - Obele, Chika C.

AU - Sibley, Christopher

AU - Matta, Jatin R.

AU - Pettigrew, Roderic I.

AU - Gharib, Ahmed M.

PY - 2011/5

Y1 - 2011/5

N2 - Background: Cardiac magnetic resonance imaging (CMRI) is an important tool to assess cardiac function. However, one of the limitations of CMRI is the need for frequent breath-holding (BH) steps. This may be inconvenient to some patients and limit the use of this modality in patients unable to cooperate because of cognitive reasons or physically incapable of performing the required BH steps. The purpose of this study is to overcome the intrinsic timing and computation limitations of dual-navigator cine imaging and demonstrate the feasibility of free-breathing (FB) cine cardiac left ventricular function with a single-respiratory-navigator gating at 3 T. Results: Eight participants underwent cine CMRI with both the conventional 2-dimensional cine BH and FB navigator-gated techniques. Scan parameters were identical, except in the FB technique, in which a respiratory navigator and only 2 signal averages were used. Images were scored for quality. Left ventricular end-systolic volume and end-diastolic volume were calculated. The differences in the end-systolic volume and end-diastolic volume assessed by the BH and FB were not statistically significant with P = 0.9 and 0.2, respectively. There was a good agreement between LV volumes with the limits of agreement (±2 SD = ±22.36 mL). Image quality score was not significantly different (P = 0.76). Conclusions: Free-breathing cine imaging utilizing a single-respiratory- navigator gating technique is comparable to conventional BH technique in both qualitative and quantitative imaging measures. Therefore, the FB cine technique can be used as an alternative for children and patients who are unable to hold their breath.

AB - Background: Cardiac magnetic resonance imaging (CMRI) is an important tool to assess cardiac function. However, one of the limitations of CMRI is the need for frequent breath-holding (BH) steps. This may be inconvenient to some patients and limit the use of this modality in patients unable to cooperate because of cognitive reasons or physically incapable of performing the required BH steps. The purpose of this study is to overcome the intrinsic timing and computation limitations of dual-navigator cine imaging and demonstrate the feasibility of free-breathing (FB) cine cardiac left ventricular function with a single-respiratory-navigator gating at 3 T. Results: Eight participants underwent cine CMRI with both the conventional 2-dimensional cine BH and FB navigator-gated techniques. Scan parameters were identical, except in the FB technique, in which a respiratory navigator and only 2 signal averages were used. Images were scored for quality. Left ventricular end-systolic volume and end-diastolic volume were calculated. The differences in the end-systolic volume and end-diastolic volume assessed by the BH and FB were not statistically significant with P = 0.9 and 0.2, respectively. There was a good agreement between LV volumes with the limits of agreement (±2 SD = ±22.36 mL). Image quality score was not significantly different (P = 0.76). Conclusions: Free-breathing cine imaging utilizing a single-respiratory- navigator gating technique is comparable to conventional BH technique in both qualitative and quantitative imaging measures. Therefore, the FB cine technique can be used as an alternative for children and patients who are unable to hold their breath.

KW - Cine cardiac MRI

KW - free-breathing

KW - high field

KW - single navigator

UR - http://www.scopus.com/inward/record.url?scp=79957817419&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79957817419&partnerID=8YFLogxK

U2 - 10.1097/RCT.0b013e31821b0ade

DO - 10.1097/RCT.0b013e31821b0ade

M3 - Article

VL - 35

SP - 382

EP - 386

JO - Journal of Computer Assisted Tomography

JF - Journal of Computer Assisted Tomography

SN - 0363-8715

IS - 3

ER -