Real-time measurement of radiation exposure to patients during diagnostic coronary angiography and percutaneous interventional procedures

Cusma, Jack T.; Bell, Malcolm R.; Wondrow, Merrill A.; Taubel, J P; Holmes, David R.

doi:10.1016/s0735-1097(98)00591-9

Cited by 119 publications

(87 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the absorbed dose to an organ represents a rather appropriate dosimetric indicator as compared to effective dose in order to evaluate a potential adverse effect of ionizing radiation to a specific organ. Indeed, the effective dose, usually used in IC as in other fields of medical exposure and radiological protection in both adult (Betsou et al, 1998;Harrison et al, 1998;Cusma et al, 1999;Katritsis et al, 2000;Efstathopoulos et al 2004;Bogaert et al, 2008;Smith and Rivers, 2008;Bahreyni et al, 2008) and paediatric (Axelsson et al, 1999;Rassow et al, 2000) populations, reflects the health detriment to the whole body in case of a homogeneous exposure. But its relevance is less evident in cases of focused or heterogeneous exposure.…”

Section: Discussionmentioning

confidence: 99%

Patient cumulative radiation exposure in interventional cardiology

Bernier

Jacob

Maccia³

et al. 2012

Radioprotection

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Patient cumulative radiation exposure in interventional cardiology

Bernier

Jacob

Maccia³

et al. 2012

Radioprotection

View full text Add to dashboard Cite

“…Effective dose provides a good comparison with natural background radiation, which is on average about 2.4 mSv per year. Typically, during a cardiac diagnostic intervention with 15 p/s, the effective dose per minute is 0.6 mSv (Cusma et al, 1999). In general, low dose goes hand in hand with less visibility, while higher image quality requires, among other factors, a higher dose.…”

Section: Radiation Dose and Dose Reductionmentioning

confidence: 99%

The Hybrid Operating Room

Nollert¹,

Hartkens²,

Figel³

et al. 2012

Special Topics in Cardiac Surgery

View full text Add to dashboard Cite

“…This is a cause of concern, but the calculated exposure of 12.2¡1.4 mSv [6] is still in the range reported for conventional coronary angiography in large non-selective studies [30,31]. Tube current modulation is a promising technique and has been estimated to reduce radiation exposure by approximately 27% [32] to 45% [33] in patients with heart rates between 60 bpm and 70 bpm.…”

Section: Study Limitationsmentioning

confidence: 99%

Comparison between the image quality of multisegment and halfscan reconstructions of non-invasive CT coronary angiography

Schnapauff

Teige²,

Hamm³

et al. 2009

BJR

View full text Add to dashboard Cite

ABSTRACT. The purpose of this study was to compare the image quality of multisegment and halfscan reconstructions of multislice computed tomography (MSCT) coronary angiography. 126 patients with suspected coronary artery disease and uninfluenced heart rates were examined by 16-slice CT before they underwent invasive coronary angiography. Multisegment and halfscan reconstructions were performed in all patients, and subjective image quality, overall vessel length, vessel length free of motion artefacts and contrast-to-noise ratios (CNRs) were compared for both techniques. The diagnostic accuracy of both approaches was compared with the results of invasive coronary angiography. Overall image quality scores of multisegment reconstruction were superior to those of halfscan reconstruction (13.3¡2.1 vs 11.9¡2.9; p,0.001). Multisegment reconstruction depicted significantly longer overall coronary vessel lengths (p,0.001) and larger vessel proportions free of motion artefacts in three of the four main coronary arteries. CNRs in the left main, left anterior descending and left circumflex coronary arteries were significantly higher when multisegment reconstruction was used (p,0.001). Overall accuracy was higher for multisegment reconstruction compared with halfscan reconstruction (87% vs 62%). In conclusion, multisegment reconstruction significantly improves image quality and diagnostic accuracy of MSCT coronary angiography compared with standard halfscan reconstruction, resulting in vessel lengths depicted free of motion comparable to those of CT performed in patients given b-blockers to lower heart rates. Non-invasive coronary angiography is an alternative approach to conventional coronary angiography in patients with suspected coronary artery disease (CAD) with high clinical [1-4] and economic [5] relevance. Recently, multislice computed tomography (MSCT) has developed into the most reliable non-invasive method for imaging of the whole coronary artery tree [6]. The susceptibility of MSCT to motion artefacts can only be overcome by systematic prescan b-blockade to lower heart rates to target values below 65 beats per minute (bpm). Recent studies have shown that b-blocker administration is necessary even on 64-slice scanners [4,[7][8][9][10][11]. Motion artefacts result from a relatively long acquisition window, which is determined by the gantry rotation time in standard halfscan reconstruction. In contrast, multisegment reconstruction [12] reduces the acquisition time by using up to four different segments from up to four consecutive heart beats [13]. In this way, an acquisition window as short as one-eighth of the gantry rotation time can be achieved [14]. In a small retrospective study of 34 patients with suspected CAD, multisegment reconstruction showed superior image quality and diagnostic accuracy compared with halfscan reconstruction. Based on these results, it was suggested that there is no need for b-blocker administration when multisegment reconstruction is used [15]. However, a recently published subgroup analy...

show abstract

Real-time measurement of radiation exposure to patients during diagnostic coronary angiography and percutaneous interventional procedures

Abstract: Changes in practice have led to higher values for patient x-ray radiation exposures during cardiac catheterization procedures. The real-time display and recording of x-ray exposure facilitates the reduction of exposure in the catheterization laboratory.

Cited by 119 publications

References 26 publications

Patient cumulative radiation exposure in interventional cardiology

Patient cumulative radiation exposure in interventional cardiology

The Hybrid Operating Room

Comparison between the image quality of multisegment and halfscan reconstructions of non-invasive CT coronary angiography

Contact Info

Product

Resources

About