ADRENALINE IN REACTIONS TO INTRAVENOUS CONTRAST MEDIUM

2000 ◽  
Vol 55 (5) ◽  
pp. 409
Author(s):  
N.C. HUGHES
Keyword(s):  
Contrast Medium ◽  
Intravenous Contrast ◽  
Intravenous Contrast Medium

scholarly journals Non-contrast MRI can accurately characterize adnexal masses: a retrospective study

2021 ◽  
Author(s):  
Hilal Sahin ◽  
Camilla Panico ◽  
Stephan Ursprung ◽  
Vittorio Simeon ◽  
Paolo Chiodini ◽  
...  
Keyword(s):  
Contrast Medium ◽  
High Accuracy ◽  
Receiver Operating Curve ◽  
Intravenous Contrast ◽  
Random Subset ◽  
Adnexal Masses ◽  
Intravenous Contrast Medium ◽  
Mri Protocol ◽  
Malignant Lesions ◽  
Mri Score

Abstract Objective To determine the accuracy of interpretation of a non-contrast MRI protocol in characterizing adnexal masses. Methods and materials Two hundred ninety-one patients (350 adnexal masses) who underwent gynecological MRI at our institution between the 1st of January 2008 and the 31st of December 2018 were reviewed. A random subset (102 patients with 121 masses) was chosen to evaluate the reproducibility and repeatability of readers’ assessments. Readers evaluated non-contrast MRI scans retrospectively, assigned a 5-point score for the risk of malignancy and gave a specific diagnosis. The reference standard for the diagnosis was histopathology or at least one-year imaging follow-up. Diagnostic accuracy of the non-contrast MRI score was calculated. Inter- and intra-reader agreement was analyzed with Cohen’s kappa statistics. Results There were 53/350 (15.1%) malignant lesions in the whole cohort and 20/121 (16.5%) malignant lesions in the random subset. Good agreement between readers was found for the non-contrast MRI score (к = 0.73, 95% confidence interval [CI] 0.58–0.86) whilst the intra-reader agreement was excellent (к = 0.81, 95% CI 0.70–0.88). The non-contrast MRI score value of ≥ 4 was associated with malignancy with a sensitivity of 84.9%, a specificity of 95.9%, an accuracy of 94.2% and a positive likelihood ratio of 21 (area under the receiver operating curve 0.93, 95% CI 0.90–0.96). Conclusion Adnexal mass characterization on MRI without the administration of contrast medium has a high accuracy and excellent inter- and intra-reader agreement. Our results suggest that non-contrast studies may offer a reasonable diagnostic alternative when the administration of intravenous contrast medium is not possible. Key Points • A non-contrast pelvic MRI protocol may allow the characterization of adnexal masses with high accuracy. • The non-contrast MRI score may be used in clinical practice for differentiating benign from malignant adnexal lesions when the lack of intravenous contrast medium precludes analysis with the O–RADS MRI score.

The value of intravenous contrast medium in PSMA PET/CT imaging in patients with biochemical recurrence of prostate cancer

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Alain Winiger ◽  
Maria del Sol Pérez Lago ◽  
Dirk Lehnick ◽  
Justus E. Roos ◽  
Klaus Strobel
Keyword(s):  
Prostate Cancer ◽  
Contrast Medium ◽  
Biochemical Recurrence ◽  
Ct Imaging ◽  
Intravenous Contrast ◽  
Intravenous Contrast Medium ◽  
Psma Pet ◽  
Pet Ct

Bolus geometry and dynamics after intravenous contrast medium injection.

Radiology ◽  
1984 ◽  
Vol 153 (2) ◽  
pp. 365-368 ◽  
Author(s):  
C D Claussen ◽  
D Banzer ◽  
C Pfretzschner ◽  
W A Kalender ◽  
W Schörner
Keyword(s):  
Contrast Medium ◽  
Intravenous Contrast ◽  
Intravenous Contrast Medium ◽  
Contrast Medium Injection

Computed Tomography of the Mediastinum of the Dog by a Six-generation CT Scanner, Different Windows and Peroral and Intravenous Contrast Medium

2005 ◽  
Vol 34 (s1) ◽  
pp. 10-11
Author(s):  
L. Cardoso ◽  
J. M. Vazquez ◽  
M. A. Teixeira ◽  
G. Ramirez-Zarzosa ◽  
A. Agut ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Contrast Medium ◽  
Ct Scanner ◽  
Intravenous Contrast ◽  
Intravenous Contrast Medium

Computed Tomography (Ct) of the Liver of the Dog by a Six-generation CT Scanner and Intravenous Contrast Medium

2005 ◽  
Vol 34 (s1) ◽  
pp. 51-52
Author(s):  
M. A. Teixeira ◽  
G. Ramirez-Zarzosa ◽  
A. Arencibia ◽  
L. Cardoso ◽  
M. D. Ayala ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Contrast Medium ◽  
Ct Scanner ◽  
Intravenous Contrast ◽  
Intravenous Contrast Medium
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