Biopsy Artifact in Laser Interstitial Thermal Therapy: A Technical Note

ConclusionAdditional consideration should be given to pre-LITT biopsies. The presence of air/blood caused an artifactual signal dropout effect in cases with biopsy that was severe enough to interfere with ablation in a significant number of those cases. Additional studies are needed to identify modifying strategies.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research

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AbstractNuclear medicine neuroimaging is able to show functional and molecular biologic abnormalities in various neuropsychiatric diseases. Therefore, it has played important roles in the clinical diagnosis and in research on the normal and pathological states of the brain. More than 400 outstanding studies have been conducted by Korean researchers over the past 60  years. In the 1990s, when multiheaded single-photon emission computed tomography (SPECT) scanners were first introduced in South Korea, stroke research using brain perfusion SPECT was conducted. With the spread of positron emission tomography (PET) scanner...
Source: Nuclear Medicine and Molecular Imaging - Category: Nuclear Medicine Source Type: research
This study included eight patients scanned for diagnostic purposes with a DLCT scanner. For each patient, four different treatment plans were created, simulating tumors in different parts of the brain. For homogeneous anatomical regions, mean SPR differences of about 1% between the DLCT- and SECT-based approaches were found. In plans of heterogeneous anatomies, relative (absolute) proton range shifts of 0.6% (0.4 mm) in the mean and up to 4.4% (2.1 mm) at the distal fall-off were observed. In the investigated cohort, 12% of the evaluated organs-at-risk (OARs) presented differences in mean or maximum dose of more than 0.5 G...
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Source Type: research
Conclusion: The present case report demonstrates that CyberKnife therapy plays a significant role in the repeated radiotherapy for multiple metastatic brain tumors. CKSRT can be used as a salvage method in recurrent multiple brain metastases.
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
Am J Epidemiol. 2021 Oct 13:kwab247. doi: 10.1093/aje/kwab247. Online ahead of print.ABSTRACTComputed tomography (CT) scan use has increased substantially since its introduction in the 1990s. Several studies report increased risk of leukemia and brain tumors associated with radiation exposure from CT. However, reverse causation is a concern, particularly for brain tumors; in other words, possibly the CT scan was taken because of pre-existing cancer and therefore not a cause. We assess the possibility of reverse causation via a simulation study, focused on brain tumor, using a simplified version of the data structure for re...
Source: Am J Epidemiol - Category: Epidemiology Authors: Source Type: research
CONCLUSION: A review of the literature revealed that there are 31 cases of PLNTY reported in literature, most of which are children or young adults. The present case represents the second PLNTY diagnosed in a middle-aged adult to the best of our knowledge, suggesting that PLNTY should always be included in the differential diagnosis of low-grade brain tumors, also in adult patients.PMID:34621585 | PMC:PMC8492409 | DOI:10.25259/SNI_500_2021
Source: Surgical Neurology International - Category: Neurosurgery Authors: Source Type: research
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