Fulltext

Whole-body computed tomography for multiple traumas using a triphasic injection protocol

Loupatatzis, Christos ; Schindera, Sebastian ; Gralla, Jan ; Hoppe, Hanno ; Bittner, Jan ; Schröder, Ralph ; Srivastav, Sudesh ; Bonel, Harald

In: European Radiology, 2008, vol. 18, no. 6, p. 1206-1214

Ajouter à la liste personnelle
    Titre
    • Whole-body computed tomography for multiple traumas using a triphasic injection protocol
    Auteur
    • Loupatatzis, Christos. Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Schindera, Sebastian. Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Gralla, Jan. Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Hoppe, Hanno. Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Bittner, Jan. Emergency and Trauma Unit, University Hospital of Berne - Inselspital, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Schröder, Ralph. Emergency and Trauma Unit, University Hospital of Berne - Inselspital, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    • Srivastav, Sudesh. Department of Biostatistics, Tulane University, New Orleans, LA, USA
    • Bonel, Harald. Institute for Diagnostic, Interventional and Pediatric Radiology, Inselspital Berne, Freiburgstrasse 10, CH-3010, Berne, Switzerland
    Type de document
    • Postprint
    Identifiant OAI-PMH
    • oai:doc.rero.ch:320113
    Summary
    To evaluate a triphasic injection protocol for whole-body multidetector computed tomography (MDCT) in patients with multiple trauma. Fifty consecutive patients (41 men) were examined. Contrast medium (300mg/mL iodine) was injected starting with 70mL at 3mL/s, followed by 0.1mL/s for 8s, and by another bolus of 75mL at 4mL/s. CT data acquisition started 50s after the beginning of the first injection. Two experienced, blinded readers independently measured the density in all major arteries, veins, and parenchymatous organs. Image quality was assessed using a five-point ordinal rating scale and compared to standard injection protocols [n = 25 each for late arterial chest, portovenous abdomen, and MDCT angiography (CTA)]. With the exception of the infrarenal inferior caval vein, all blood vessels were depicted with diagnostic image quality using the multiple-trauma protocol. Arterial luminal density was slightly but significantly smaller compared to CTA (P < 0.01). Veins and parenchymatous organs were opacified significantly better compared to all other protocols (P < 0.01). Arm artifacts reduced the density of spleen and liver parenchyma significantly (P < 0.01). Similarly high image quality is achieved for arteries using the multiple-trauma protocol compared to CTA, and parenchymatous organs are depicted with better image quality compared to specialized protocols. Arm artifacts should be avoided