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Single photon emission computerized tomography in childhood hydrocephalus
M Shinoda1, T Yamaguchi, Y Tanaka
1Department of Neurosurgery, Tokai University School of Medicine, Kanagawa, Japan.
Insights
Single photon emission computerized tomography (SPECT) effectively evaluates cerebral blood flow (CBF) in children. Positive reabsorption ratios (RR) in pediatric hydrocephalus correlate with favorable outcomes, while negative RR indicates a poor prognosis.
Area of Science:
- Neurology
- Nuclear Medicine
- Pediatrics
Background:
- Single photon emission computerized tomography (SPECT) is a valuable tool for assessing cerebral blood flow (CBF).
- Childhood hydrocephalus can significantly impact CBF and neurological outcomes.
- Evaluating CBF changes is crucial for determining prognosis in pediatric neurological conditions.
Purpose of the Study:
- To investigate cerebral blood flow (CBF) changes in pediatric hydrocephalus using 123I-IM SPECT.
- To determine the correlation between reabsorption ratio (RR) and patient prognosis in childhood hydrocephalus.
Main Methods:
- Utilized 123I-IM SPECT to study five pediatric cases of hydrocephalus.
- Quantified radioactivity in early and delayed SPECT images for each patient.
- Calculated the reabsorption ratio (RR) based on radioactivity measurements.
Main Results:
- Identified two pediatric hydrocephalus cases with a negative reabsorption ratio (RR).
- Identified three pediatric hydrocephalus cases with a positive reabsorption ratio (RR).
- All negative-RR patients exhibited a poor prognosis, whereas all positive-RR patients showed a favorable outcome.
Conclusions:
- The reabsorption ratio (RR) derived from 123I-IM SPECT may serve as a prognostic indicator in childhood hydrocephalus.
- SPECT imaging can provide valuable insights into CBF dynamics and predict outcomes in pediatric hydrocephalus patients.
Abstract:
Single photon emission computerized tomography (SPECT) is now widely used as one of the tools in evaluating cerebral blood flow (CBF). The authors report the CBF changes in childhood hydrocephalus. Five pediatric cases studied by 123I-IM SPECT in children are presented. The authors counted radioactivities both in early and delayed images in each patient, and calculated the reabsorption ratio (RR). Two negative-RR cases and three positive-RR cases were found. All of the negative-RR patients had a poor prognosis, while all of the positive-RR patients had a favorable outcome.