2024
Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion
Mak A, Matouk C, Avery E, Behland J, Haider S, Frey D, Madai V, Vajkoczy P, Griessenauer C, Zand R, Hendrix P, Abedi V, Sanelli P, Falcone G, Petersen N, Sansing L, Sheth K, Payabvash S, Malhotra A. Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion. PLOS ONE 2024, 19: e0304962. PMID: 38870240, PMCID: PMC11175522, DOI: 10.1371/journal.pone.0304962.Peer-Reviewed Original ResearchConceptsDiffusion-weighted imagingLarge vessel occlusionIrreversible ischemic changesPoor functional outcomeFunctional outcomesIschemic changesInfarct volumeAlberta Stroke Program Early CT ScorePredicting poor functional outcomeVessel occlusionFollow-up diffusion-weighted imagingAnterior circulation LVO strokeCTA source imagesReceiver operating characteristic curveExpert human readersPredicting final infarctionASPECTS regionsAdmission CTANon-inferior performanceBaseline CTACT scoreFinal infarctEndovascular therapyHU attenuationValidation cohort
2023
Early brain microstructural development among preterm infants requiring caesarean section versus those delivered vaginally
Bobba P, Weber C, Malhotra A, Bahtiyar M, Copel J, Taylor S, Ment L, Payabvash S. Early brain microstructural development among preterm infants requiring caesarean section versus those delivered vaginally. Scientific Reports 2023, 13: 21514. PMID: 38057452, PMCID: PMC10700578, DOI: 10.1038/s41598-023-48963-z.Peer-Reviewed Original ResearchUtility of Gadolinium-Based Contrast in Initial Evaluation of Seizures in Children Presenting Emergently
Andrijauskis D, Woolf G, Kuehne A, Al-Dasuqi K, Silva C, Payabvash S, Malhotra A. Utility of Gadolinium-Based Contrast in Initial Evaluation of Seizures in Children Presenting Emergently. American Journal Of Neuroradiology 2023, 44: 1208-1211. PMID: 37652579, PMCID: PMC10549952, DOI: 10.3174/ajnr.a7976.Peer-Reviewed Original ResearchMeSH KeywordsBrainChildContrast MediaEpilepsyGadoliniumHumansMagnetic Resonance ImagingRetrospective StudiesSeizuresConceptsSeizure presentationMR imagingConsecutive pediatric patientsNew-onset seizuresEvaluation of seizuresIschemic/hypoxicImaging of patientsBrain MR imagingGadolinium-based contrast agentsNoncontrast studyAcute onsetHippocampal sclerosisPediatric seizuresPatient agePediatric patientsNormal findingsIntracranial hemorrhageEmergency departmentVascular anomaliesInpatient unitGadolinium contrastPatientsNeurodevelopmental lesionAdditive benefitSeizuresRe: Magnetic resonance imaging cervical spine in trauma: A retrospective single‐centre audit of patient outcomes
Malhotra A, Wu X, Khunte M, Radmard M. Re: Magnetic resonance imaging cervical spine in trauma: A retrospective single‐centre audit of patient outcomes. Emergency Medicine Australasia 2023, 35: 882-882. PMID: 37549928, DOI: 10.1111/1742-6723.14216.Commentaries, Editorials and LettersLetter to the Editor Re; "Treatment and outcomes of non-aneurysmal perimesencephalic subarachnoid hemorrhage: A 5 year retrospective study in a tertiary care centre"
Malhotra A. Letter to the Editor Re; "Treatment and outcomes of non-aneurysmal perimesencephalic subarachnoid hemorrhage: A 5 year retrospective study in a tertiary care centre". Clinical Neurology And Neurosurgery 2023, 233: 107937. PMID: 37591039, DOI: 10.1016/j.clineuro.2023.107937.Commentaries, Editorials and LettersCT With CTA Versus MRI in Patients Presenting to the Emergency Department With Dizziness: Analysis Using Propensity Score Matching.
Tu L, Navaratnam D, Melnick E, Forman H, Venkatesh A, Malhotra A, Yaesoubi R, Sureshanand S, Sheth K, Mahajan A. CT With CTA Versus MRI in Patients Presenting to the Emergency Department With Dizziness: Analysis Using Propensity Score Matching. American Journal Of Roentgenology 2023, 221: 836-845. PMID: 37404082, DOI: 10.2214/ajr.23.29617.Peer-Reviewed Original ResearchConceptsSecondary stroke prevention medicationsStroke prevention medicationsEmergency departmentPrevention medicationsEchocardiography evaluationPosterior circulation strokeProportion of patientsGroup of patientsPhysical examination findingsNeuroimaging resultsUse of MRIReview of systemsGreater frequencyPropensity-score matchingExamination findingsRetrospective studyED readmissionMedical historyHead CTClinical impactMRI examinationsBrain MRINeck CTADizzinessPatients
2020
Effects of Collateral Status on Infarct Distribution Following Endovascular Therapy in Large Vessel Occlusion Stroke
Al-Dasuqi K, Payabvash S, Torres-Flores GA, Strander SM, Nguyen CK, Peshwe KU, Kodali S, Silverman A, Malhotra A, Johnson MH, Matouk CC, Schindler JL, Sansing LH, Falcone GJ, Sheth KN, Petersen NH. Effects of Collateral Status on Infarct Distribution Following Endovascular Therapy in Large Vessel Occlusion Stroke. Stroke 2020, 51: e193-e202. PMID: 32781941, PMCID: PMC7484023, DOI: 10.1161/strokeaha.120.029892.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overArterial Occlusive DiseasesCerebral InfarctionCohort StudiesCollateral CirculationComputed Tomography AngiographyEndovascular ProceduresFemaleHumansInfarction, Middle Cerebral ArteryLinear ModelsMagnetic Resonance AngiographyMaleMiddle AgedReperfusionRetrospective StudiesStrokeThrombectomyTreatment OutcomeWhite MatterConceptsLarge vessel occlusion strokeFinal infarct volumeCollateral statusPoor collateral statusFavorable outcomeInfarct distributionInfarct volumeReperfusion successIndependent predictorsOcclusion strokeInternal capsuleAnterior circulation large vessel occlusion ischemic strokeLarge vessel occlusion ischemic strokeDeep white matter tractsBaseline collateral statusBorder-zone infarctionEarly favorable outcomeEarly functional outcomesRankin Scale scoreCohort of patientsDegree of reperfusionLarge vessel occlusionComputed tomography angiographyDeep white matterMagnetic resonance imagingSeptic cavernous sinus thrombosis—Case series and review of the literature
Geng B, Wu X, Malhotra A. Septic cavernous sinus thrombosis—Case series and review of the literature. Clinical Neurology And Neurosurgery 2020, 197: 106092. PMID: 32693341, DOI: 10.1016/j.clineuro.2020.106092.Peer-Reviewed Original ResearchConceptsCavernous sinus thrombosisAcademic tertiary care centerSeptic cavernous sinus thrombosisExtension of thrombosisTertiary care centerInternal jugular veinTransverse-sigmoid sinusLife-threatening diseaseSource of infectionCST patientsInfectious thrombosisSinus thrombosisPatient demographicsPseudo aneurysmReported complicationsIntracranial complicationsSubdural empyemaBilateral narrowingHigh morbidityTreatment coursePersistent narrowingRadiology databaseCare centerUnilateral narrowingJugular veinReduced 2-year aneurysm retreatment and costs among patients treated with flow diversion versus non-flow diversion embolization: A Premier Healthcare Database retrospective cohort study
Grandhi R, Karsy M, Taussky P, Ricker CN, Malhotra A. Reduced 2-year aneurysm retreatment and costs among patients treated with flow diversion versus non-flow diversion embolization: A Premier Healthcare Database retrospective cohort study. PLOS ONE 2020, 15: e0234478. PMID: 32555657, PMCID: PMC7302520, DOI: 10.1371/journal.pone.0234478.Peer-Reviewed Original ResearchConceptsPipeline Embolization DeviceEndovascular treatmentRetreatment ratePS matchingIntracranial aneurysmsRetrospective cohort studyRate of readmissionEmergency department visitsLength of stayLower retreatment rateInitial treatment costsUnruptured intracranial aneurysmsPropensity-score matchingTime of treatmentCumulative followCohort studyReadmission costsDepartment visitsPatient subgroupsPED placementCase selection biasSame hospitalAneurysm retreatmentEmbolization DevicePatientsUtility of routine follow-up imaging in patients with small paraflacine and/or paratentorial hemorrhages
Seifert KD, Wu X, Malhotra A. Utility of routine follow-up imaging in patients with small paraflacine and/or paratentorial hemorrhages. Clinical Neurology And Neurosurgery 2020, 196: 105956. PMID: 32526488, DOI: 10.1016/j.clineuro.2020.105956.Peer-Reviewed Original ResearchMeSH KeywordsAgedFemaleFollow-Up StudiesHumansIntracranial HemorrhagesMaleMiddle AgedNeuroimagingRetrospective StudiesTomography, X-Ray ComputedConceptsSubdural hemorrhageRoutine follow-up imagingSubsequent imagingImaging studiesSecond imaging studyAbsence of anticoagulationSubsequent imaging studiesFollow-up imagingAcute intracranial hemorrhageAnticoagulation useStable patientsRetrospective reviewClinical progressionIntracranial hemorrhageEmergency departmentClinical dataHemorrhage sizeHemorrhageRoutine imagingPatient statusPatientsParafalcineMultiple followSame protocolAverage numberThirty- and 90-Day Readmissions After Treatment of Traumatic Subdural Hematoma: National Trend Analysis
Koo AB, Elsamadicy AA, David WB, Zogg CK, Santarosa C, Sujijantarat N, Robert SM, Kundishora AJ, Cord BJ, Hebert R, Bahrassa F, Malhotra A, Matouk CC. Thirty- and 90-Day Readmissions After Treatment of Traumatic Subdural Hematoma: National Trend Analysis. World Neurosurgery 2020, 139: e212-e219. PMID: 32272271, PMCID: PMC7380544, DOI: 10.1016/j.wneu.2020.03.168.Peer-Reviewed Original ResearchConceptsTraumatic subdural hematomaSubdural hematomaRheumatoid arthritis/collagen vascular diseasesMultivariate logistic regression analysisCollagen vascular diseaseNationwide Readmissions DatabaseCongestive heart failureLikelihood of readmissionPrimary procedure codeTraumatic brain injuryLogistic regression analysisReadmission ratesRenal failureHeart failurePostoperative infectionNinth RevisionSurgical interventionPatient populationVascular diseaseCerebral meningesBrain injuryClinical ModificationPatient managementReadmissionInternational ClassificationIdentification of patients with carotid stenosis using natural language processing
Wu X, Zhao Y, Radev D, Malhotra A. Identification of patients with carotid stenosis using natural language processing. European Radiology 2020, 30: 4125-4133. PMID: 32103365, DOI: 10.1007/s00330-020-06721-z.Peer-Reviewed Original ResearchDiagnostic Value of CT of Chest, Abdomen, and Pelvis in Patients With Solitary and Multiple Brain Lesions.
Rothman RK, Weinreb J, Zucconi W, Malhotra A. Diagnostic Value of CT of Chest, Abdomen, and Pelvis in Patients With Solitary and Multiple Brain Lesions. American Journal Of Roentgenology 2020, 214: 636-640. PMID: 31939701, DOI: 10.2214/ajr.19.22051.Peer-Reviewed Original ResearchConceptsPrimary neoplasmsBrain lesionsChest CTIntracranial lesionsCT CAPAncillary signsBrain neoplasmsNew intracranial lesionsPrimary brain neoplasmsMultiple brain lesionsMalignant brain neoplasmsLarge academic hospitalPresence of enhancementBrain metastasesLung primaryMetastatic workupSuch patientsPrimary cancerLesion characteristicsAcademic hospitalBenign entityCT scanPatientsMalignant casesNeoplasms
2019
A comparison of benign positional vertigo and stroke patients presenting to the emergency department with vertigo or dizziness
Hanna J, Malhotra A, Brauer PR, Luryi A, Michaelides E. A comparison of benign positional vertigo and stroke patients presenting to the emergency department with vertigo or dizziness. American Journal Of Otolaryngology 2019, 40: 102263. PMID: 31358317, DOI: 10.1016/j.amjoto.2019.07.007.Peer-Reviewed Original ResearchConceptsBenign paroxysmal positional vertigoStroke risk factorsCT/CTAEmergency departmentBPPV patientsNeurologic symptomsStroke patientsRisk factorsPositional vertigoCT headExam findingsNeurologic exam findingsPosterior circulation strokeProfile of patientsBenign positional vertigoParoxysmal positional vertigoCommon imaging modalityAcute strokeNeurologic examInitial imagingMRI brainDischarge diagnosisComputed tomographyPatientsVertigo
2018
Progressive T1 Shortening of the Dentate Nucleus in Patients With Multiple Sclerosis: Result of Multiple Administrations of Linear Gadolinium Contrast Agents Versus Intrinsic Disease.
Malhotra A, LeSar B, Wu X, Durand D, Das N, Anzai Y, Sanelli P. Progressive T1 Shortening of the Dentate Nucleus in Patients With Multiple Sclerosis: Result of Multiple Administrations of Linear Gadolinium Contrast Agents Versus Intrinsic Disease. American Journal Of Roentgenology 2018, 211: 1099-1105. PMID: 30160975, DOI: 10.2214/ajr.17.19155.Peer-Reviewed Original ResearchConceptsMacrocyclic agent gadobutrolMultiple sclerosisGlobus pallidusDentate nucleusGadolinium-based contrast agentsGadopentetate dimeglumineIntrinsic diseaseContrast injectionMultiple administrationsRelapsing-remitting multiple sclerosisMultiple contrast injectionsSubsequent MRI studiesUnenhanced T1-weighted imagesT1-weighted imagesIntrinsic T1 hyperintensityPons SI ratioContrast agent administrationRetrospective reviewMore dosesT1 hyperintensitySignal intensity ratioContrast agentsGadolinium contrastMRI studiesPatientsManagement of blunt cerebrovascular injury (BCVI) in the multisystem injury patient with contraindications to immediate anti-thrombotic therapy
Malhotra A, Wu X, Tu L, Seifert K. Management of blunt cerebrovascular injury (BCVI) in the multisystem injury patient with contraindications to immediate anti-thrombotic therapy. Injury 2018, 49: 735-736. PMID: 29402423, DOI: 10.1016/j.injury.2018.01.018.Peer-Reviewed Original ResearchBlunt Cerebrovascular Artery Injury and Stroke in Severely Injured Patients: An International Multicenter Analysis
Malhotra A, Wu X, Seifert K, Tu L. Blunt Cerebrovascular Artery Injury and Stroke in Severely Injured Patients: An International Multicenter Analysis. World Journal Of Surgery 2018, 42: 3451-3451. PMID: 29383427, DOI: 10.1007/s00268-018-4518-9.Peer-Reviewed Original Research
2017
Semicircular canal dehiscence among idiopathic intracranial hypertension patients
Kuo P, Bagwell KA, Mongelluzzo G, Schutt CA, Malhotra A, Khokhar B, Kveton JF. Semicircular canal dehiscence among idiopathic intracranial hypertension patients. The Laryngoscope 2017, 128: 1196-1199. PMID: 28833207, DOI: 10.1002/lary.26795.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedFemaleHumansMaleMiddle AgedPilot ProjectsPseudotumor CerebriRetrospective StudiesSemicircular CanalsTomography, X-Ray ComputedConceptsRadiographic superior semicircular canal dehiscenceSuperior semicircular canal dehiscenceIdiopathic intracranial hypertensionSemicircular canal dehiscenceOpening pressureCanal dehiscenceIdiopathic intracranial hypertension patientsLogistic regressionIntracranial hypertension patientsBody mass indexRetrospective pilot studyMultivariate logistic regressionComputed tomography (CT) imagingStudent's t-testAverage opening pressureRetrospective cohortConsecutive patientsIntracranial hypertensionHypertension patientsMass indexRetrospective studyLumbar punctureControl cohortTegmental defectsPatientsMulticentric Chordoma
Jones JR, Huttner A, Malhotra A. Multicentric Chordoma. Clinical Neuroradiology 2017, 28: 283-288. PMID: 28766007, DOI: 10.1007/s00062-017-0610-z.Peer-Reviewed Original ResearchMRI findings of optic pathway involvement in Miller Fisher syndrome in 3 pediatric patients and a review of the literature
Malhotra A, Zhang M, Wu X, Jindal S, Durand D, Makhani N. MRI findings of optic pathway involvement in Miller Fisher syndrome in 3 pediatric patients and a review of the literature. Journal Of Clinical Neuroscience 2017, 39: 63-67. PMID: 28209311, DOI: 10.1016/j.jocn.2016.12.049.Peer-Reviewed Original ResearchConceptsMiller Fisher syndromeOptic pathway involvementGuillain-Barré syndromeCranial nerve enhancementPediatric patientsFisher syndromeNerve enhancementPathway involvementCranial nerve involvementNerve involvementAcute illnessDemyelinating conditionMRI findingsBrighton criteriaClinical manifestationsOptic pathwayCase reportCranial nervesBrain MRIPatientsSyndromeInvolvementFindingsNerveIllness