Low contrast media volume in pre-TAVI CT examinations

J 2016

Low contrast media volume in pre-TAVI CT examinations

KOK, Madeleine; Jakub TUREK; Casper MIHL; Sebastian D. REINARTZ; Robin F. GOHMANN et al.

Základní údaje

Originální název

Low contrast media volume in pre-TAVI CT examinations

Autoři

KOK, Madeleine; Jakub TUREK; Casper MIHL; Sebastian D. REINARTZ; Robin F. GOHMANN; Estelle C. NIJSSEN; Suzanne KATS; Vincent G. van OMMEN; Bas L.J.H. KIETSELAER; Joachim E. WILDBERGER a Marco DAS

Vydání

European Radiology, New York, Springer, 2016, 0938-7994

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30000 3. Medical and Health Sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.967

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/16:00089238

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

Transcatheter aortic valve implantation; Multi detector-row CT; Contrast media; Diagnostic imaging; Contrast induced nephropathy

Štítky

EL OK

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 25. 8. 2016 12:09, Ing. Mgr. Věra Pospíšilíková

Anotace

V originále

To evaluate image quality using reduced contrast media (CM) volume in pre-TAVI assessment. Forty-seven consecutive patients referred for pre-TAVI examination were evaluated. Patients were divided into two groups: group 1 BMI < 28 kg/m(2) (n = 29); and group 2 BMI > 28 kg/m(2) (n = 18). Patients received a combined scan protocol: retrospective ECG-gated helical CTA of the aortic root (80kVp) followed by a high-pitch spiral CTA (group 1: 70 kV; group 2: 80 kVp) from aortic arch to femoral arteries. All patients received one bolus of CM (300 mgI/ml): group 1: volume = 40 ml; flow rate = 3 ml/s, group 2: volume = 53 ml; flow rate = 4 ml/s. Attenuation values (HU) and contrast-to-noise ratio (CNR) were measured at the levels of the aortic root (helical) and peripheral arteries (high-pitch). Diagnostic image quality was considered sufficient at attenuation values > 250HU and CNR > 10. Diagnostic image quality for TAVI measurements was obtained in 46 patients. Mean attenuation values and CNR (HU +/- SD) at the aortic root (helical) were: group 1: 381 +/- 65HU and 13 +/- 8; group 2: 442 +/- 68HU and 10 +/- 5. At the peripheral arteries (high-pitch), mean values were: group 1: 430 +/- 117HU and 11 +/- 6; group 2: 389 +/- 102HU and 13 +/- 6. CM volume can be substantially reduced using low kVp protocols, while maintaining sufficient image quality for the evaluation of aortic root and peripheral access sites. Image quality could be maintained using low kVp scan protocols. Low kVp protocols reduce contrast media volume by 34-67 %. Less contrast media volume lowers the risk of contrast-induced nephropathy.

Citovat

KOK, Madeleine; Jakub TUREK; Casper MIHL; Sebastian D. REINARTZ; Robin F. GOHMANN; Estelle C. NIJSSEN; Suzanne KATS; Vincent G. van OMMEN; Bas L.J.H. KIETSELAER; Joachim E. WILDBERGER a Marco DAS. Low contrast media volume in pre-TAVI CT examinations. European Radiology. New York: Springer, 2016, roč. 26, č. 8, s. 2426-2435. ISSN 0938-7994. Dostupné z: https://doi.org/10.1007/s00330-015-4080-x.

@article{1322862,
   author = {Kok, Madeleine and Turek, Jakub and Mihl, Casper and Reinartz, Sebastian D. and Gohmann, Robin F. and Nijssen, Estelle C. and Kats, Suzanne and Ommen, Vincent G. van and Kietselaer, Bas L.J.H. and Wildberger, Joachim E. and Das, Marco},
   article_location = {New York},
   article_number = {8},
   doi = {https://doi.org/10.1007/s00330-015-4080-x},
   keywords = {Transcatheter aortic valve implantation; Multi detector-row CT; Contrast media; Diagnostic imaging; Contrast induced nephropathy},
   language = {eng},
   issn = {0938-7994},
   journal = {European Radiology},
   title = {Low contrast media volume in pre-TAVI CT examinations},
   volume = {26},
   year = {2016}
}

TY  - JOUR
ID  - 1322862
AU  - Kok, Madeleine - Turek, Jakub - Mihl, Casper - Reinartz, Sebastian D. - Gohmann, Robin F. - Nijssen, Estelle C. - Kats, Suzanne - Ommen, Vincent G. van - Kietselaer, Bas L.J.H. - Wildberger, Joachim E. - Das, Marco
PY  - 2016
TI  - Low contrast media volume in pre-TAVI CT examinations
JF  - European Radiology
VL  - 26
IS  - 8
SP  - 2426-2435
EP  - 2426-2435
PB  - Springer
SN  - 09387994
KW  - Transcatheter aortic valve implantation
KW  - Multi detector-row CT
KW  - Contrast media
KW  - Diagnostic imaging
KW  - Contrast induced nephropathy
N2  - To evaluate image quality using reduced contrast media (CM) volume in pre-TAVI assessment. Forty-seven consecutive patients referred for pre-TAVI examination were evaluated. Patients were divided into two groups: group 1 BMI < 28 kg/m(2) (n = 29); and group 2 BMI > 28 kg/m(2) (n = 18). Patients received a combined scan protocol: retrospective ECG-gated helical CTA of the aortic root (80kVp) followed by a high-pitch spiral CTA (group 1: 70 kV; group 2: 80 kVp) from aortic arch to femoral arteries. All patients received one bolus of CM (300 mgI/ml): group 1: volume = 40 ml; flow rate = 3 ml/s, group 2: volume = 53 ml; flow rate = 4 ml/s. Attenuation values (HU) and contrast-to-noise ratio (CNR) were measured at the levels of the aortic root (helical) and peripheral arteries (high-pitch). Diagnostic image quality was considered sufficient at attenuation values > 250HU and CNR > 10. Diagnostic image quality for TAVI measurements was obtained in 46 patients. Mean attenuation values and CNR (HU +/- SD) at the aortic root (helical) were: group 1: 381 +/- 65HU and 13 +/- 8; group 2: 442 +/- 68HU and 10 +/- 5. At the peripheral arteries (high-pitch), mean values were: group 1: 430 +/- 117HU and 11 +/- 6; group 2: 389 +/- 102HU and 13 +/- 6. CM volume can be substantially reduced using low kVp protocols, while maintaining sufficient image quality for the evaluation of aortic root and peripheral access sites. Image quality could be maintained using low kVp scan protocols. Low kVp protocols reduce contrast media volume by 34-67 %. Less contrast media volume lowers the risk of contrast-induced nephropathy.
ER  -

KOK, Madeleine; Jakub TUREK; Casper MIHL; Sebastian D. REINARTZ; Robin F. GOHMANN; Estelle C. NIJSSEN; Suzanne KATS; Vincent G. van OMMEN; Bas L.J.H. KIETSELAER; Joachim E. WILDBERGER a Marco DAS. Low contrast media volume in pre-TAVI CT examinations. \textit{European Radiology}. New York: Springer, 2016, roč.~26, č.~8, s.~2426-2435. ISSN~0938-7994. Dostupné z: https://doi.org/10.1007/s00330-015-4080-x.

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