Voluntary Faculty
Voluntary faculty are typically clinicians or others who are employed outside of the School but make significant contributions to department programs at the medical center or at affiliate institutions.
Voluntary rank detailsRobert McDonald, MD
Assistant Clinical ProfessorAbout
Research
Publications
2025
Evaluation of Spontaneous Intracranial Hypotension Probabilistic Brain MRI Scoring Systems in Normal Patients.
Kang C, Madhavan A, Benson J, Mark I, Johnson-Tesch B, McDonald R, Verdoorn J. Evaluation of Spontaneous Intracranial Hypotension Probabilistic Brain MRI Scoring Systems in Normal Patients. American Journal Of Neuroradiology 2025, 46: 1925-1930. PMID: 39979026, PMCID: PMC12453467, DOI: 10.3174/ajnr.a8713.Peer-Reviewed Original ResearchConceptsSpontaneous intracranial hypotensionMRI scoring systemCistern effacementScoring systemMayo scoreNormal patientsBoard-certified neuroradiologistsLow probability scoreRate of positivityCSF leakIntracranial hypotensionBrain saggingMRI findingsImaging findingsPatient cohortBrain MRIIntermediate probabilityPatientsBern scoreEffacementPositive rateMayoCohortMRICSF
2023
Acute Adverse Events After Iodinated Contrast Agent Administration of 359,977 Injections: A Single-Center Retrospective Study
McDonald J, Larson N, Schmitz J, Kolbe A, Hunt C, Hartman R, Hagan J, Kallmes D, McDonald R. Acute Adverse Events After Iodinated Contrast Agent Administration of 359,977 Injections: A Single-Center Retrospective Study. Mayo Clinic Proceedings 2023, 98: 1820-1830. PMID: 38043998, DOI: 10.1016/j.mayocp.2023.02.032.Peer-Reviewed Original ResearchConceptsNon-white patientsWhite patientsExamination variablesSingle-center retrospective studyHigh rateAcute adverse eventsEffect of patientAllergic-like reactionsPhysiologic reactionsComputed tomography examinationCT locationLogistic regression modelsContrast agent administrationICM allergyYounger patientsAdverse eventsPatient ageMultivariable analysisRetrospective studyUnique patientsAcute reactionsFemale sexPatient variablesTomography examinationCT examinationsAirway compromise following contrast extravasation from an external jugular intravenous line
McDonald J, Schmitz J, Mendes B, McDonald R. Airway compromise following contrast extravasation from an external jugular intravenous line. Radiology Case Reports 2023, 19: 58-61. PMID: 37886022, PMCID: PMC10598708, DOI: 10.1016/j.radcr.2023.09.078.Peer-Reviewed Original ResearchContrast extravasationIodinated Contrast MaterialAirway compromiseCase of airway compromiseRisk of contrast extravasationAlternative injection sitesVascular access siteComputed tomography examsRare caseContrast materialIncreased riskAntecubital fossaIntravenous injectionVascular accessIntravenous lineExtravasationInjection siteAccess siteComplicationsAdditional careIV lineInjection
2013
The 100 Most-cited Articles in the Imaging Literature
Brinjikji W, Klunder A, Kallmes D. The 100 Most-cited Articles in the Imaging Literature. Radiology 2013, 269: 272-276. PMID: 23696685, DOI: 10.1148/radiol.13122242.Peer-Reviewed Original ResearchConceptsJournal impact factorMedical imagesImpact factorMost-cited articlesMedical imaging literatureScopus databasesComputer scienceSubject categoriesImage processingJournal nameArticle typeMagnetic resonance (MR) imaging techniquesPublication yearImagesImaging modalitiesMR imagingJournalsDatabasePrinted versionComputerCitationsClinical subspecialtyStatistically significant positive correlationImaging literatureImaging techniquesIs Severe Pain Immediately after Spinal Augmentation a Predictor of Long-Term Outcomes?
Cho Y, McDonald J, Rad A, Ocel J, Kallmes D. Is Severe Pain Immediately after Spinal Augmentation a Predictor of Long-Term Outcomes? American Journal Of Neuroradiology 2013, 34: 1853-1856. PMID: 23598835, PMCID: PMC7965646, DOI: 10.3174/ajnr.a3505.Peer-Reviewed Original ResearchConceptsActivity pain scoresSevere painLong-term outcomesPain scoresPain groupAnalgesic usagePain severityPain medicationLong-term pain reliefAssociated with severe painPresence of severe painPredictor of long-term outcomeResting pain scoresSevere pain groupFisher's exact testWilcoxon signed-rank testPostprocedural painMonths postprocedureSigned-rank testYear postprocedurePain reliefChart reviewClinical characteristicsAnalgesic administrationExact testWhat Is Meant by “TICI”?
Fugate J, Klunder A, Kallmes D. What Is Meant by “TICI”? American Journal Of Neuroradiology 2013, 34: 1792-1797. PMID: 23578670, PMCID: PMC7965642, DOI: 10.3174/ajnr.a3496.Peer-Reviewed Original Research
2012
Interobserver Variability in Retreatment Decisions of Recurrent and Residual Aneurysms
McDonald J, Carter R, Layton K, Mocco J, Madigan J, Tawk R, Hanel R, Roy S, Cloft H, Klunder A, Suh S, Kallmes D. Interobserver Variability in Retreatment Decisions of Recurrent and Residual Aneurysms. American Journal Of Neuroradiology 2012, 34: 1035-1039. PMID: 23099500, PMCID: PMC7964667, DOI: 10.3174/ajnr.a3326.Peer-Reviewed Original ResearchConceptsRetreatment decisionsInterobserver variabilityClinically meaningful differencesEndovascular therapistsEndovascular coil embolizationRetreatment typeWilcoxon signed-rank testMeaningful differencesIntraclass correlation coefficientSigned-rank testRecurrent aneurysmsResidual aneurysmMultireader studyCoil embolizationYounger patientsRuptured aneurysmsUnruptured aneurysmsRetreatment recommendationsAneurysmPatient variablesOutcome measuresNeuroradiologistsPatientsInterobserverClinic
2010
Correlating first- and second-rib fractures noted on spine computed tomography with major vessel injury
Khosla A, Ocel J, Rad A, Kallmes D. Correlating first- and second-rib fractures noted on spine computed tomography with major vessel injury. Emergency Radiology 2010, 17: 461-464. PMID: 20549285, DOI: 10.1007/s10140-010-0879-6.Peer-Reviewed Original ResearchConceptsMajor vessel injuryAortic injuryAssociated with greater incidenceVessel injuryComputed tomographyRib fracturesGreater incidenceChest CT angiogramSpine computed tomographyTraumatic aortic injuryProportion of patientsMechanism of injuryTraumatic vascular injuriesCT angiographyCT angiogramMotor vehicle accidentsPlain radiogramsPlain radiographsVascular injuryIndications of traumaPatientsFisher testInjuryVehicle accidentsIncidence