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Iodine contrast iso-attenuating with diagnostic gadolinium doses in CTA and angiography results in ultra-low iodine doses. A way to avoid both CIN and NSF in azotemic patients?

Nyman, Ulf; Elmståhl, Barbara LU ; Geijer, Håkan; Leander, Peter LU ; Almén, Torsten LU and Nilsson, Mats LU (2011) In European Radiology 21. p.326-336
Abstract
OBJECTIVES: To establish iodine (I) contrast medium (CM) doses iso-attenuating with gadolinium (Gd) CM doses regarded diagnostic in CTA and percutaneous catheter-angiography/vascular interventions (PCA/PVI) in azotemic patients. METHODS: CT Hounsfield units (HU) were measured in 20-mL syringes containing 0.01/0.02,/0.05/0.1 mmol/mL of iodine or gadolinium atoms and placed in phantoms. Relative contrast were measured in 20-mL syringes filled with iohexol at 35/50/70/90/110/140 mg I/mL and 0.5 M gadodiamide using radiofluoroscopy (RF), digital radiography (DX) and x-ray angiography (XA) systems. Clinical doses of Gd-CM at CTA/PCA/PVI were reviewed. RESULTS: At CT 91-116 and 104-125 mg I/mL in the chest and abdominal phantoms, respectively,... (More)
OBJECTIVES: To establish iodine (I) contrast medium (CM) doses iso-attenuating with gadolinium (Gd) CM doses regarded diagnostic in CTA and percutaneous catheter-angiography/vascular interventions (PCA/PVI) in azotemic patients. METHODS: CT Hounsfield units (HU) were measured in 20-mL syringes containing 0.01/0.02,/0.05/0.1 mmol/mL of iodine or gadolinium atoms and placed in phantoms. Relative contrast were measured in 20-mL syringes filled with iohexol at 35/50/70/90/110/140 mg I/mL and 0.5 M gadodiamide using radiofluoroscopy (RF), digital radiography (DX) and x-ray angiography (XA) systems. Clinical doses of Gd-CM at CTA/PCA/PVI were reviewed. RESULTS: At CT 91-116 and 104-125 mg I/mL in the chest and abdominal phantoms, respectively, were iso-attenuating with 0.5 M Gd at 80-140 kVp. At RF/DX/XA systems 35-90 mg I/mL were iso-attenuating with 0.5 M gadodiamide at 60-115 kVp. Clinically, 60 mL 91-125 mg I/mL (5.5-7.5 gram-iodine) at 80-140 kVp CTA and 60 mL of 35-90 mg I/mL (2.1-5.4 gram-iodine) at 60-115 kVp PCA/PVI would be iso-attenuating with 60 mL 0.5 M Gd-CM (=0.4 mmol Gd/kg in a 75-kg person). CONCLUSIONS: Meticulous examination technique and judicious use of ultra-low I-CM doses iso-attenuating with diagnostic Gd-CM doses in CTA and PCA/PVI may minimise the risk of nephrotoxicity in azotemic patients, while there is no risk of NSF. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Radiology
volume
21
pages
326 - 336
publisher
Springer
external identifiers
  • wos:000287079300014
  • pmid:20803203
  • scopus:79951955235
ISSN
0938-7994
DOI
10.1007/s00330-010-1924-2
language
English
LU publication?
yes
id
785fe11b-09b7-4800-a976-dcc32271fa65 (old id 1664906)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20803203?dopt=Abstract
date added to LUP
2010-09-03 09:05:49
date last changed
2017-01-01 07:30:11
@article{785fe11b-09b7-4800-a976-dcc32271fa65,
  abstract     = {OBJECTIVES: To establish iodine (I) contrast medium (CM) doses iso-attenuating with gadolinium (Gd) CM doses regarded diagnostic in CTA and percutaneous catheter-angiography/vascular interventions (PCA/PVI) in azotemic patients. METHODS: CT Hounsfield units (HU) were measured in 20-mL syringes containing 0.01/0.02,/0.05/0.1 mmol/mL of iodine or gadolinium atoms and placed in phantoms. Relative contrast were measured in 20-mL syringes filled with iohexol at 35/50/70/90/110/140 mg I/mL and 0.5 M gadodiamide using radiofluoroscopy (RF), digital radiography (DX) and x-ray angiography (XA) systems. Clinical doses of Gd-CM at CTA/PCA/PVI were reviewed. RESULTS: At CT 91-116 and 104-125 mg I/mL in the chest and abdominal phantoms, respectively, were iso-attenuating with 0.5 M Gd at 80-140 kVp. At RF/DX/XA systems 35-90 mg I/mL were iso-attenuating with 0.5 M gadodiamide at 60-115 kVp. Clinically, 60 mL 91-125 mg I/mL (5.5-7.5 gram-iodine) at 80-140 kVp CTA and 60 mL of 35-90 mg I/mL (2.1-5.4 gram-iodine) at 60-115 kVp PCA/PVI would be iso-attenuating with 60 mL 0.5 M Gd-CM (=0.4 mmol Gd/kg in a 75-kg person). CONCLUSIONS: Meticulous examination technique and judicious use of ultra-low I-CM doses iso-attenuating with diagnostic Gd-CM doses in CTA and PCA/PVI may minimise the risk of nephrotoxicity in azotemic patients, while there is no risk of NSF.},
  author       = {Nyman, Ulf and Elmståhl, Barbara and Geijer, Håkan and Leander, Peter and Almén, Torsten and Nilsson, Mats},
  issn         = {0938-7994},
  language     = {eng},
  pages        = {326--336},
  publisher    = {Springer},
  series       = {European Radiology},
  title        = {Iodine contrast iso-attenuating with diagnostic gadolinium doses in CTA and angiography results in ultra-low iodine doses. A way to avoid both CIN and NSF in azotemic patients?},
  url          = {http://dx.doi.org/10.1007/s00330-010-1924-2},
  volume       = {21},
  year         = {2011},
}