PURPOSE To differentiate radiation necrosis from tumor recurrence using single-photon
emission CT (SPECT). METHODS Forty-two thallium-201 SPECT scans were obtained in 33 …

A patient who had previously undergone resection of a malignant glioma followed by
radiation therapy was found to have a focus of a high accumulation of thallous chloride Tl …

Purpose: To assess whether quantitative 201 Tl single photon emission computed
tomography (SPECT) can be used as a prognostic test in patients with suspected recurrent …

MRI is routinely performed to detect recurrence in patients with primary brain tumors, but it
may not differentiate recurrent tumor from radiation-induced necrosis reliably. Thallium-201 …

Object. The authors assessed the diagnostic value of 201 Tl Cl single-photon emission
computerized tomography (SPECT), performed after gamma knife surgery (GKS) for …

Purpose: The follow-up of patients with malignant brain tumors after surgery, radiation,
and/or chemotherapy has been inadequate for evaluating brain tumor burden using …

Conventional imaging techniques are often unreliable in distinguishing between radiation
necrosis and recurrent glioma in patients who are symptomatic after high-dose radiotherapy …

PURPOSE: Semiquantitative analysis of thallium-201 chloride single photon emission
computed tomography (201Tl SPECT) was evaluated for the discrimination between …

✓ Deteriorating clinical status after high-dose radiation therapy for high-grade gliomas may
be due to radiation changes or may signal recurrent or residual tumor mass. The two …

The clinical usefulness of L-methyl-< SUP> 11 C-methionine positron emission tomography
(< SUP> 11 C-MET PET) and thallium-201 single photon emission computed tomography (< …