Thallium-201 single photon emission computed tomography for the differentiation of malignant versus non-malignant intracranial space-occupying lesions in developing countries.

Background: Thallium-201 single-photon emission computed tomography (TI-SPECT) imaging has been used historically to distinguish malignant cerebral neoplasms from infectious etiologies.

Objectives: Our study aims to conduct a retrospective study, review existing literature, and perform meta-analysis on the use of TI-SPECT to differentiate malignant from non-malignant nervous system lesions when other advanced imaging modalities are not available, such as in resource-limited setting.

Methods: A retrospective study on the use of TI-SPECT in differentiating malignant versus non-malignant nervous system lesions was conducted in two tertiary hospitals in the Philippines.

A prospective study on the precision of height data from electronic medical records in tidal volume calculation for lung-protective ventilation.

Lung-protective ventilation is now the norm for all patients, regardless of the presence of acute respiratory distress syndrome (ARDS), owing to the mortality associated with higher tidal volumes (TV). Clinicians calculate TV using recorded height from medical records and predicted body weight (PBW); however, the accuracy remains uncertain. Our study aimed to validate accurate TV settings for lung-protective ventilation by examining the correlation between the charted height and bedside measurements.

Value of Thallium-201 SPECT and SPECT/CT Brain Imaging in Differentiating Malignant From Nonmalignant Lesions: A Comparative Case-Series Study With Pathologic and/or Clinical Correlation.

Background: Thallium-201 single-photon emission computed tomography/computed tomography (SPECT/CT) brain scan is an imaging modality which can be done to differentiate between malignant and nonmalignant lesions among patients with nonconclusive findings on conventional neuroimaging. This study describes the results of thallium-201 SPECT/CT brain imaging and relate it to histopathologic and/or clinical findings and evaluate the value of thallium-201 SPECT/CT brain imaging in differentiating malignant from nonmalignant lesions.

Methods: This is a retrospective case series study of 10 patients with cerebral lesions who underwent thallium-201 SPECT/CT brain imaging in a hospital in the Philippines from 2010 to 2021.