Nonparametric Tests for Shift and Change in Regression at an Unknown Time Point

1989 ◽  
pp. 71-85 ◽  
Author(s):  
Marie Hušková ◽  
Pranab K. Sen
Keyword(s):  
Nonparametric Tests ◽  
Time Point

scholarly journals Nonparametric Tests for Shift at an Unknown Time Point

1968 ◽  
Vol 39 (5) ◽  
pp. 1731-1743 ◽  
Author(s):  
G. K. Bhattacharyya ◽  
Richard A. Johnson
Keyword(s):  
Nonparametric Tests ◽  
Time Point

Limitations of dual time point FDG-PET imaging in the evaluation of focal abdominal lesions

2004 ◽  
Vol 43 (05) ◽  
pp. 143-149 ◽  
Author(s):  
N. Hamscho ◽  
C. Menzel ◽  
L. Neuss ◽  
A. F. Kovács ◽  
F. Grünwald ◽  
...  
Keyword(s):  
Pet Imaging ◽  
Malignant Tumors ◽  
Standardized Uptake Value ◽  
Delayed Imaging ◽  
Ct Guided ◽  
Fdg Uptake ◽  
Diagnostic Potential ◽  
Dual Time Point ◽  
Abdominal Lesions ◽  
Time Point

Summary:Aim: For the evaluation of the diagnostic potential of dual time point FDG positron emission tomography (PET) in patients with suspicious focal abdominal up-take, dual time point PET imaging was compared with clinical findings. Patients, methods: In a prospective study, 56 patients exhibiting a solitary suspicious, intense abdominal FDG uptake, underwent dual time point PET imaging for staging or restaging of different malignant tumors, maximal standardized uptake value (SUVmax) measurements included. The first acquisition was started 64.8 ± 19.5, the second 211.3 ± 52.5 min after FDG injection. The final diagnosis based on CT or MRT imaging and a follow-up period of 12.6 ± 2.8 months. Additionally, colonoscopy was done in 6 patients. In another 6 patients histopathology was obtained from CT guided biopsy. Results: Malignant focal abdominal lesions with a SUVmax <2.5 (n = 4) showed an uptake increase of ≥30%. In the remaining malignant cases with an uptake of ≥2.5 (n = 11), up-take increased in 64% and decreased in 36%. Malignant lesions showing FDG uptake decrease (n = 4) had an initial SUVmax value ≥2.5 and remained with a SUVmax ≥2.5 in the second imaging. In benign lesions with an initial SUVmax ≥2.5 (n = 31), the uptake increased in 17 patients (55%) and decreased in 14 patients (45%). All lesions which changed configuration (33%) were confirmed as benign (n = 5). Conclusion: Using dual time point PET abdominal lesions show a very hetergenous uptake pattern regardless of their dignity. Malignancy can only be reliably excluded in lesions which change their configuration and in lesions with an initial SUVmax value <2.5 combined with an SUV decrease in the delayed imaging. Particularly abdominal lesions which show an initial SUVmax ≥2.5 combined with a SUV increase in the delayed imaging are suspicious for malignancy and need further clarification.

Erste Erfahrungen in der Interpretation von MR-Mammographien mittels der „3-time-point Methode (3TP)“

2005 ◽  
Vol 177 (S 01) ◽  
Author(s):  
A Goßmann ◽  
C Bangard ◽  
A Mühler ◽  
K Krüger ◽  
M Zähringer ◽  
...  
Keyword(s):  
Time Point

Analysis of the Bank of Russia information policy

2017 ◽  
pp. 88-110 ◽  
Author(s):  
S. Drobyshevsky ◽  
P. Trunin ◽  
A. Bozhechkova ◽  
E. Gorunov ◽  
D. Petrova
Keyword(s):  
Interest Rate ◽  
Nonparametric Tests ◽  
Information Policy ◽  
Var Models ◽  
New Approach ◽  
Interest Rate Policy ◽  
News Reports ◽  
Internet Users ◽  
Rate Policy ◽  
Exchange Markets

The article investigates the Bank of Russia information policy using a new approach to measuring information effects on Russian data, including the analysis of the tonality of news reports, as well as internet users’ queries on Google. The efficiency of regulator’s information signals is studied using EGARCH-, VAR- models, as well as nonparametric tests. The authors conclude that the regulator communicates effectively in terms of the predictability of interest rate policy, the degree to which information signals affect the money and foreign exchange markets.

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