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Peter Kranz, M.D.

@petergkranz.bsky.social
452 followers 56 following 11 posts

Division Chief of Neuroradiology at Duke University Medical Center. Research in #spinalCSFleak #SIH. Tweets my own. No discussion of individual patient care. #radsky #neurorad

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Reposted by Peter Kranz, M.D.
The American Journal of Neuroradiology @theajnr.bsky.social · 10/05/2025
"Density and Time Characteristics of CSF-Venous Fistulas on CT Myelography in Patients with Spontaneous Intracranial Hypotension" doi.org/10.3174/ajnr... @The_ASSR @dgleao @TimAmrheinMD @PeterGKranz #CSFLeak
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Reposted by Peter Kranz, M.D.
The American Journal of Neuroradiology @theajnr.bsky.social · 11/03/2025
"Safety and Technical Performance of Bilateral Decubitus CT Myelography Using Standard versus Increased Intrathecal Iodinated Contrast Volume" doi.org/10.3174/ajnr... @dgleao @PeterGKranz @The_ASSR #CSFLeak #EditorsChoice
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Reposted by Peter Kranz, M.D.
The American Journal of Neuroradiology @theajnr.bsky.social · 11/02/2025
"While we found a statistically significant higher renal contrast excretion in patients with SIH compared with patients without SIH during early-phase CTM, no useful threshold value could be established that could reliably distinguish these groups with both high sensitivity and high specificity."
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Reposted by Peter Kranz, M.D.
The American Journal of Neuroradiology @theajnr.bsky.social · 11/02/2025
"Diagnostic Performance of Renal Contrast Excretion on Early-Phase CT Myelography in Spontaneous Intracranial Hypotension" doi.org/10.3174/ajnr...
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Peter Kranz, M.D. @petergkranz.bsky.social · 08/02/2025
📄New paper on ICP monitoring in pts with orthostatic HA and negative imaging found that most common identifiable pressure issue was high pressure (!) “3 patients had low ICP (8%) and 6 patients had high ICP (16%). The remaining [had neither] (76%). 🤔 pubmed.ncbi.nlm.nih.gov/39905291/
pubmed.ncbi.nlm.nih.gov
Intracranial pressure monitoring in patients with spontaneous onset of orthostatic headache - PubMed
Portions of this work were presented in abstract and oral presentation form at the Twenty-eighth Anglo-Dutch Migraine Association meeting (08/06/2018), the Tenth Meeting of the International Society f...
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Peter Kranz, M.D. @petergkranz.bsky.social · 17/01/2025
So what exactly makes a headache orthostatic anyway? 📄 New paper alert 📄 journals.sagepub.com/doi/full/10....
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Reposted by Peter Kranz, M.D.
🇨🇦 Spinal CSF Leak Canada @spinalcsfleakca.bsky.social · 06/01/2025
Don't miss our upcoming webinar! 🚨ONLY 3⃣ DAYS LEFT! FREE REGISTRATION is still open: 👇 us02web.zoom.us/webinar/regi...
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Peter Kranz, M.D. @petergkranz.bsky.social · 30/12/2024
Most EBPs in the community are performed without imaging guidance. Case report of how an intact plica dorsalis mediana prevented bilateral spread of blood, necessitating a second EBP under imaging. Consider when EBP for PDPH “fails.” scholar.google.com/scholar_url?...
scholar.google.com
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Peter Kranz, M.D. @petergkranz.bsky.social · 11/12/2024
📄 New Paper Alert! 📄 “Flow Void Sign”: Flow Artifact on T2-Weighted MRI Can Be an Indicator of Dural Defect Location in Ventral Type 1 Spinal CSF Leaks Congrats to @neuroradlal.bsky.social, @dgleao.bsky.social , David Butteriss, @brainscandan.bsky.social - super useful - I'm a believer!!
ajnr.org
“Flow Void Sign”: Flow Artifact on T2-Weighted MRI Can Be an Indicator of Dural Defect Location in Ventral Type 1 Spinal CSF Leaks
Patients with spontaneous intracranial hypotension caused by type 1 dural defects typically have an epidural fluid collection on MRI. Still, the location of the defect is not usually readily identifia...
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Peter Kranz, M.D. @petergkranz.bsky.social · 07/12/2024
Headache that worsens upon standing may prompt suspicion for CSF leak. But there is a normal sharp spike in CSF pressure immediately upon standing. In some patients with IIH or RIH, this can paradoxically cause HA upon standing, tho usually transient. Fig: PMID 34715658
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Peter Kranz, M.D. @petergkranz.bsky.social · 30/11/2024
Fascinating series of articles on CTD in Neurology in #FrontiersinNeurology including #CSFleak and orthostatic HA. Great discussion and hypotheses- but surprising how little primary data underpins our current understanding. #knownunknowns www.frontiersin.org/research-top...
frontiersin.org
Neurology and Connective Tissue
Connective tissue compromise, as is seen in the heritable connective tissue disorders collectively called Ehlers-Danlos Syndrome, but also acquired connective tissue disorders as can be seen in autoim...
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Peter Kranz, M.D. @petergkranz.bsky.social · 29/11/2024
Don’t want to read that spine case? Come to THIS session at #RSNA2024! Mon Dec 2, 8-9am, Rm S406B > Is this spinal finding actionable? > Is this spinal infection? > What am I looking for on this CSF leak spine imaging? > What am I looking for on this postop spine imaging?
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