Abstract PO-010: Detection of early tissue changes on historical CT scans in the regions of the pancreas gland that subsequently develop adenocarcinoma using quantitative textural analysis and fat fraction analysis

In order to evaluate the incidence of soft tissue changes after automated lumbar nucleotomy, a prospective cohort study was performed with follow-up CT within four to six hours after treatment of 97 discs in 88 patients. The CT scans were normal at 47 levels and abnormal at 50. At 11 levels traces of blood were seen along the trajectory, of which nine were located in the subcutaneous fat, one in the extensor and one in the psoas muscle. Small gas collections were observed at 42 levels. Twenty-one of them were located in the extensor and two in the psoas muscle, seven in the subcutaneous fat, two in the epidural space and ten in multiple locations. The abnormal scans were not associated with clinical symptoms different from those with normal scans. The results support previous reports indicating that this procedure is associated with low morbidity and complication rates.

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OC-0445: Evaluation of soft tissue changes using ConeBeam CT scans during treatment of esophageal cancer

Radiotherapy and Oncology ◽

10.1016/s0167-8140(15)32751-1 ◽

2013 ◽

Vol 106 ◽

pp. S172

Author(s):

A. van den Hoek ◽

M. Kamphuis ◽

R. de Jong ◽

N. van Wieringen ◽

M. Hulshof

Keyword(s):

Esophageal Cancer ◽

Soft Tissue ◽

Ct Scans ◽

Tissue Changes ◽

Soft Tissue Changes ◽

Conebeam Ct

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Cerebral Tissue Response in Chronic Electrode Implantation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100080547 ◽

1977 ◽

Vol 35 ◽

pp. 624-625

Author(s):

R.F. Dodson ◽

L.W-F Chu ◽

N. Ishihara

Keyword(s):

Tissue Response ◽

Whole Body ◽

Platinum Electrodes ◽

Fixed Tissue ◽

Electrode Implantation ◽

Surface Areas ◽

Tissue Changes ◽

Micron Diameter ◽

Extent Of Damage ◽

Electrode Sheath

The extent of damage surrounding an implanted electrode in the cerebral cortex is a question of significant importance with regard to attaining consistency and validity of physiological recordings. In order to determine the extent of such tissue changes, 150 micron diameter platinum electrodes were implanted in the cortex of four adult baboons, and after eight days the animals were sacrificed by whole body perfusion with a 3% glutaraldehyde in 0.1M phosphate fixative.The calvarium was carefully removed and the electrode tracts were readily discernible in the firm, glutaraldehyde fixed tissue.Careful dissection of the zone of the electrode tract resulted in a small block which was further sectioned into tip, mid-tract and surface areas. Ultrastructurally, damage extended from the electrode sheath to the greatest extent of from 0.2 to 3.5 mm.

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Clinical criteria can identify children with blunt head trauma who are unlikely to need CT scans

PsycEXTRA Dataset ◽

10.1037/e556122006-015 ◽

2006 ◽

Keyword(s):

Head Trauma ◽

Ct Scans ◽

Clinical Criteria ◽

Blunt Head Trauma

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Incremental Validity of Neuropsychological Evaluations and CT Scans in Predicting Long-Term Outcomes for Persons With Traumatic Brain Injury

PsycEXTRA Dataset ◽

10.1037/e708332011-001 ◽

2011 ◽

Cited By ~ 1

Author(s):

Michael W. Williams ◽

Lisa J. Rapport ◽

Hillary A. Greene ◽

Robin A. Hanks ◽

Scott R. Millis

Keyword(s):

Traumatic Brain Injury ◽

Brain Injury ◽

Incremental Validity ◽

Ct Scans ◽

Long Term Outcomes ◽

Neuropsychological Evaluations

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Projected future risk of leukemia and brain tumors from unnecessary brain CT scans: a multi-center study in Iran

Radioprotection ◽

10.1051/radiopro/2020073 ◽

2020 ◽

Author(s):

A. Asgari ◽

A.A. Parach ◽

F. Bouzarjomehri ◽

F. Shirani-Takabi ◽

A.H. Mehrparvar ◽

...

Keyword(s):

Brain Cancer ◽

Age Groups ◽

Young Patients ◽

Ct Scans ◽

Brain Ct ◽

Males And Females ◽

And Gender ◽

Multi Center Study ◽

Gender Groups ◽

Probability Of Cancer

Introduction: Computer Tomography (CT) scans can deliver a relatively high radiation dose to the patient, therefore radiation protection for this modality is paramount. The present study determined the frequency of no abnormality detected (NAD) brain CT scans and probability of cancer induction in different age groups and genders. Methods: In this study, brain CT reports were used to identify any findings as abnormality detected (AD) and others as NAD. Then probability of future leukemia and brain cancer was estimated for different age and gender groups. Results: On average, in 65% of the cases the results were NAD (56% and 76% among males and females, respectively). Among children, 79% of the reports were NAD. The total number of projected brain cancers was 1.8 and 1.3 for males and females, respectively. The number of projected leukemia cases was 0.75 and 0.7 for males and females, respectively. For pediatric patients, brain CT scans can lead to leukemia cases about 4.5 times more often than adults. Conclusion: Brain CT scans can lead to additional cases of brain cancer and leukemia. A significant fraction of brain CTs were NAD (non-pathologic) and could practically be replaced by other radiation-free imaging modalities, especially in pediatric and young patients.

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