Brain and bladder PET/CT metabolism in normal state and in neurogenic lower urinary tract dysfunction (a pilot study)
- Authors: Zubik G.V.1, Berdichevsky B.A.1, Pavlova I.V.1, Saltanova V.A.1, Kicherova O.A.1, Korabelnikov M.A.2
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Affiliations:
- Tyumen State Medical University
- Medical City Clinical Medical Center
- Pages: 43-48
- Section: UROLOGY AND ANDROLOGY
- Published: 10.06.2026
- URL: https://aspvestnik.ru/2410-3764/article/view/702758
- DOI: https://doi.org/10.35693/AVP702758
- ID: 702758
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Abstract
Aim: to identify the features of PET/CT metabolism of the energy-intensive molecule ¹⁸F-FDG in the brain and the bladder wall in the normal state and in neurogenic lower urinary tract dysfunction.
Material and methods. This pilot study describes clinical observations of two patients, focusing on the features of cerebral and bladder ¹⁸F-FDG metabolism under normal conditions (filling phase, voiding phase) and in neurogenic dysfunction, based on whole-body PET/CT data. The standardized uptake values (SUVmax) of ¹⁸F-FDG in the anterior and posterior parts of the cingulate gyrus, as well as in the bladder wall during different functional phases, were calculated.
Results. The study showed that during the bladder filling phase, increased metabolic activity was observed in the posterior part of the cingulate gyrus (SUVmax 4.2), whereas during the voiding phase, increased activity was noted in its anterior part (SUVmax 4.9). An increase in ¹⁸F-FDG metabolism was observed in the bladder wall during the voiding phase (SUVmax 13.59), indicating the high energy demands of the micturition act. In the patient with neurogenic bladder dysfunction during the filling phase, simultaneous activation of both parts of the cingulate gyrus occurred, coinciding with increased ¹⁸F-FDG accumulation in the bladder wall (SUVmax 20.44).
Conclusion. Metabolic synchrony was demonstrated between the parts of the cingulate gyrus and the detrusor in a patient with no urological history during the filling and voiding phases, as well as during the filling phase in neurogenic lower urinary tract dysfunction. A synchronous increase in the ¹⁸F-FDG standardized uptake value was observed, which could serve as an additional functional neuroimaging tool in the diagnosis of neurogenic disorders. Despite limitations associated with the small sample size and the pilot nature of the work, the obtained data indicate the need for further research.
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About the authors
Grigorii V. Zubik
Tyumen State Medical University
Author for correspondence.
Email: grisha.zubik@mail.ru
ORCID iD: 0009-0005-1333-2922
MD, research intern of the Institute of Clinical Medicine.
Russian Federation, TyumenBoris A. Berdichevsky
Tyumen State Medical University
Email: doktor_bba@mail.ru
ORCID iD: 0000-0002-9414-8510
MD, Dr. Sci. (Medicine), Professor, Professor of the Department of Pediatric Surgery with a Course in Urology and Andrology.
Russian Federation, TyumenIrina V. Pavlova
Tyumen State Medical University
Email: iraena@mail.ru
ORCID iD: 0000-0002-5079-430X
MD, Cand. Sci. (Medicine), Urologist, doctoral student of the Department of Pediatric Surgery with a Course in Urology and Andrology.
Russian Federation, TyumenValentina A. Saltanova
Tyumen State Medical University
Email: valentinaslt72@gmail.com
ORCID iD: 0009-0002-1304-2202
MD, postgraduate student, Department of Neurology with a Course in Neurosurgery.
TyumenOksana A. Kicherova
Tyumen State Medical University
Email: pan1912@mail.ru
ORCID iD: 0000-0002-7598-7757
MD, Dr. Sci. (Med.), Associate professor, Head of the Department of Neurology with a Course in Neurosurgery.
Russian Federation, TyumenMikhail A. Korabelnikov
Medical City Clinical Medical Center
Email: kma_doc@mail.ru
ORCID iD: 0009-0001-2226-765X
MD, Radiologist of the Radiology Center.
Russian Federation, TyumenReferences
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