An Analysis Of 300 99mTc Pertechnetate Brain Scans

1973 ◽  
Vol 59 (2) ◽  
pp. 67-70
Author(s):  
Murdoch A. Macleod
Keyword(s):  
Comparative Analysis ◽  
Diagnostic Tool ◽  
X Ray ◽  
Brain Scans ◽  
99Mtc Pertechnetate ◽  
Intracranial Lesions

AbstractsBrain scanning using various radiopharmaceutical complexes is now well established as an invaluable diagnostic tool in the delineation of intracranial lesions. In this paper 300 cases with suspected intracranial pathology are presented and a comparative analysis of the 48 positive pick ups made with EEG and skull X-ray results.

Indium (111In)-Labelled Bleomycin for the Detection of Intracranial Lesions

1975 ◽  
Vol 14 (03) ◽  
pp. 263-271
Author(s):  
M. V. Merrick ◽  
B. Chaucer ◽  
B. Clay ◽  
J. P. Lavender ◽  
V. R. McCready ◽  
...  
Keyword(s):  
Residual Tumour ◽  
Brain Scans ◽  
Two Agents ◽  
99Mtc Pertechnetate ◽  
Intracranial Lesions ◽  
Technical Factors

SummaryBrain scans with 99mTc pertechnetate were compared with scans made after administration of 111Indium bleomycin in 38 patients scanned on 41 occasions. They gave similar results in 34 pairs of examinations, including cases in which both failed to detect the tumour. In seven cases, the two agents differed. In two of these bleomycin distinguished residual tumour from the effects of craniotomy more clearly than did pertechnetate; in three bleomycin apparently detected tumour not seen with pertechnetate, and in two the differences may have been due to technical factors, or are unexplained.

scholarly journals Analysis of diagnostic possibilities of radio- logic and CT examination for pelvic injuries in children

1996 ◽  
Vol 3 (2) ◽  
pp. 45-48
Author(s):  
E. M. Kil’dyushov ◽  
I. V. Buromsky ◽  
V. M. Rozinov ◽  
L. E. Kuznetsov
Keyword(s):  
Comparative Analysis ◽  
Morphological Data ◽  
Ray Method ◽  
Diagnostic Reliability ◽  
X Ray ◽  
Ct Examination ◽  
Radiologic Examination ◽  
Pelvic Injuries

The purpose of this report is the determination of the diagnostic reliability of routine radiologic and CT examinations for pelvic injuries in children. The comparative analysis of these examinations and postmortem morphologic studies of pelvic spesimens was performed in 10 children, aged 2-12 years. It was shown that the X-ray method allowed to diagnose only 47.37% and CT method - 76.32% of all real pelvic injuries (by morphological data) in those children. However, the detectability of damage of the structures that formed the anterior pelvic semi-ring was 50% by radiologic examination, and 60% by CT examination, while for the structures forming posterior pelvic semi-ring it was 44.44% and 94.44%, respectively.

scholarly journals Kwestia chronologii, typologii i pochodzenia szklanej biżuterii z wczesnośredniowiecznego ośrodka grodowego w Gnieźnie

2020 ◽  
Vol 25 ◽  
pp. 247-289
Author(s):  
Joanna Sawicka
Keyword(s):  
Comparative Analysis ◽  
Chemical Composition ◽  
Glass Composition ◽  
Starting Material ◽  
14C Dating ◽  
Glass Strip ◽  
X Ray ◽  
General Manner ◽  
Physico Chemical ◽  
Early Settlement

The study presents 175 artefacts from the settlement center in Gniezno – beads and rings. The materials come from settlement levels from around the mid-10th to the 13th centuries. The latest chronological findings based on 14C dating have made it possible to refine the dating, especially of the early settlement levels of the stronghold, where the vast majority of glass artefacts come from. Threeba sic groups of beads have been distinguished based on the technique of their production – beads made of a drawing a tube, the technique of winding a glass strip, as well as casting and sintering. The results of 7 physico-chemical analyzes of the glass composition (performed with the X-Ray Fluorescence, XRF method) are presented. Physicochemical analyzes of the chemical composition of the tested beads made it possible to determine the technological group and the type of glass. An attempt was made to explain the origin of the starting material (glass) for jewelery. A comparative analysis made it possible to indicate in a general manner possible manufacturers and to outline the likely directions of the influx of these glass ornaments to Gniezno.

scholarly journals Ways to optimize the assessment of lean body mass in hemodialysis patients

2019 ◽  
Vol 9 (1) ◽  
pp. 23-28
Author(s):  
Juliia V. Lavrishcheva ◽  
Aleksandr A. Jakovenko
Keyword(s):  
Comparative Analysis ◽  
Lean Body Mass ◽  
Body Mass ◽  
Hemodialysis Patients ◽  
Dual Energy ◽  
European Part ◽  
X Ray ◽  
Bland Altman Method ◽  
Total Lean Body Mass ◽  
The Russian Federation

The aim. To conduct a comparative analysis of the effectiveness of methods for assessing lean body mass in haemodialysis patients. Patients and methods. A total of 317 patients receiving treatment with programmatic bicarbonate haemodialysis in 9 haemodialysis centers in 5 regions of the European part of the Russian Federation were examined for 8.2 ± 5.1 years, among them 171 women and 146 men, the average age was 57.1 ± 11.3 years. Dual-energy X-ray absorptiometry and bioimpedancemetry were used to assess lean body mass. Results. The results of determining the total lean body mass obtained from the results of dual-energy X-ray absorptiometry and bioimpedancemetry were compared using the Bland-Altman method. The correlation coefficient between the indicators was r = 0.994, p < 0.0001, delta (M ± σ) was –0.48 ± 0.91 kg, CI 95% (–0.71)–(–0.26) kg. Conclusion. Dual-energy X-ray absorptiometry has no significant advantages compared with bioimpedancemetry when evaluating lean body mass in haemodialysis patients.

Progress in HXR diagnostics at GOLEM and COMPASS tokamaks

2022 ◽  
Vol 17 (01) ◽  
pp. C01033
Author(s):  
J. Cerovsky ◽  
O. Ficker ◽  
V. Svoboda ◽  
E. Macusova ◽  
J. Mlynar ◽  
...  
Keyword(s):  
Diagnostic Tool ◽  
Runaway Electron ◽  
Sampling Rate ◽  
Data Acquisition System ◽  
Scintillation Detectors ◽  
Low Density ◽  
Runaway Electrons ◽  
X Ray ◽  
Radiation Induced ◽  
Pulse Analysis

Abstract Scintillation detectors are widely used for hard X-ray spectroscopy and allow us to investigate the dynamics of runaway electrons in tokamaks. This diagnostic tool proved to be able to provide information about the energy or the number of runaway electrons. Presently it has been used for runaway studies at the GOLEM and the COMPASS tokamaks. The set of scintillation detectors used at both tokamaks was significantly extended and improved. Besides NaI(Tl) (2 × 2 inch) scintillation detectors, YAP(Ce) and CeBr3 were employed. The data acquisition system was accordingly improved and the data from scintillation detectors is collected with appropriate sampling rate (≈300 MHz) and sufficient bandwidth (≈100 MHz) to allow a pulse analysis. Up to five detectors can currently simultaneously monitor hard X-ray radiation at the GOLEM. The same scintillation detectors were also installed during the runaway electron campaign at the COMPASS tokamak. The aim of this contribution is to report progress in diagnostics of HXR radiation induced by runaway electrons at the GOLEM and the COMPASS tokamaks. The data collected during the 12th runaway electron campaign (2020) at COMPASS shows that count rates during typical low-density runaway electron discharges are in a range of hundreds of kHz and detected photon energies go up to 10 MeV (measured outside the tokamak hall). Acquired data from experimental campaigns from both machines will be discussed.

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