28 June 2012
Time-resolved imaging of contrast kinetics does not improve performance of follow-up MRA of embolized intracranial aneurysmsZbigniew SerafinABCDEF, Piotr StrześniewskiBDE, Władysław LasekEFG, Wojciech BeuthBEF
Med Sci Monit 2012; 18(7): MT60-65
Background: The use of contrast media and the time-resolved imaging of contrast kinetics (TRICKS) technique have some theoretical advantages over time-of-flight magnetic resonance angiography (TOF-MRA) in the follow-up of intracranial aneurysms after endovascular treatment. We prospectively compared the diagnostic performance of TRICKS and TOF-MRA with digital subtracted angiography (DSA) in the assessment of occlusion of embolized aneurysms.
Material/Methods: Seventy-two consecutive patients with 72 aneurysms were examined 3 months after embolization. Test characteristics of TOF-MRA and TRICKS were calculated for the detection of residual flow. The results of quantification of flow were compared with weighted kappa. Intraobserver and interobserver reproducibility was determined.
Results: The sensitivity of TOF-MRA was 85% (95% CI, 65–96%) and of TRICKS, 89% (95% CI, 70–97%). The specificity of both methods was 91% (95% CI, 79–98%). The accuracy of the flow quantification ranged from 0.76 (TOF-MRA) to 0.83 (TRICKS). There was no significant difference between the methods in the area under the ROC curve regarding both the detection and the quantification of flow. Intraobserver reproducibility was very good with both techniques (kappa, 0.86–0.89). The interobserver reproducibility was moderate for TOF-MRA and very good for TRICKS (kappa, 0.74–0.80).
Conclusions: In this study, TOF-MRA and TRICKS presented similar diagnostic performance; therefore, the use of time-resolved contrast-enhanced MRA is not justified in the follow-up of embolized aneurysms.
Keywords: Kinetics, Intracranial Aneurysm - therapy, Imaging, Three-Dimensional - methods, Follow-Up Studies, Embolization, Therapeutic, Contrast Media - diagnostic use, Carotid Artery, Internal - radiography, Magnetic Resonance Angiography - standards, Time Factors
01 February 2023 : EditorialEditorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread
Med Sci Monit 2023; 29:e939580
19 January 2023 : Clinical ResearchEvaluation of Health-Related Quality of Life and Mental Health in 729 Medical Students in Indonesia During ...
Med Sci Monit In Press; DOI: 10.12659/MSM.938892
19 January 2023 : Clinical ResearchDetermining the Impact of the COVID-19 Pandemic on Dental Care in the Serbian Adult Population: An Online Q...
Med Sci Monit 2023; 29:e939238
27 December 2022 : Clinical ResearchEffect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...
Med Sci Monit 2022; 28:e938926
01 Feb 2023 : Clinical ResearchComparison of 3 Enzyme-Linked Immunoassay Methods to Evaluate Serum Concentrations of Infliximab and Antibo...
Med Sci Monit In Press; DOI: 10.12659/MSM.939084
31 Jan 2023 : Clinical ResearchBalloon Dilation Eustachian Tuboplasty Combined with Tympanotomy Tube Insertion for Treatment of Refractory...
Med Sci Monit In Press; DOI: 10.12659/MSM.938879
31 Jan 2023 : Clinical ResearchComparison of Vision Correction and Corneal Thickness at 180-Day Follow-Up After Femtosecond Laser-Assisted...
Med Sci Monit In Press; DOI: 10.12659/MSM.939099
Most Viewed Current Articles
13 Nov 2021 : Clinical ResearchAcceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...
Med Sci Monit 2021; 27:e932788
30 Dec 2021 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
08 Mar 2022 : Review articleA Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...
Med Sci Monit 2022; 28:e936292