scholarly journals Response to the letter by Gilbert et al. (Preprint)

2021 ◽  
Author(s):  
Aleksandar Ćirković
Keyword(s):  
Artificial Intelligence ◽  
Follow Up Study

UNSTRUCTURED Author's reponse to the letter by Gilbert et al. commenting "Evaluation of Four Artificial Intelligence–Assisted Self-Diagnosis Apps on Three Diagnoses: Two-Year Follow-Up Study".

scholarly journals Letter to the Editor - Evaluation of Four Artificial Intelligence–Assisted Self-Diagnosis Apps on Three Diagnoses: Two-Year Follow-Up Study (Preprint)

2020 ◽  
Author(s):  
Stephen Gilbert ◽  
Matthew Fenech ◽  
Anisa Idris ◽  
Ewelina Türk
Keyword(s):  
Artificial Intelligence ◽  
Learning Algorithms ◽  
Symptom Assessment ◽  
Normal Process ◽  
Repeated Testing ◽  
Follow Up Study ◽  
Clinical Vignettes ◽  
Letter To The Editor ◽  
Over Time

UNSTRUCTURED We have several comments on the recent publication of [1], in which repeated testing of four symptom assessment applications with clinical vignettes was carried out to look for “hints of ‘non-locked learning algorithms’”. As the developer of one of the symptom assessment applications studied by [1], we are supportive of studies evaluating app performance, however there are important limitations in the methodology of the study. Most importantly, the methodology used in this study is not capable of addressing its main objective. The approach used to look for evidence of non-locked algorithms was the quantification of differences in performance using three ophthalmology vignettes, first in 2018 then in 2020. This methodology, although highly limited due to the use of only three vignettes in one medical specialism, could be used to detect changes in app performance over time. It however cannot be used to distinguish between non-locked algorithms and the manual updating of the apps’ medical intelligence, through the normal process of manual release of updated app versions.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

A 10-year follow-up study of fixed metal ceramic prosthodontics

1997 ◽  
Vol 24 (10) ◽  
pp. 713-717 ◽  
Author(s):  
R. NAPANKANGAS ◽  
M.A.M. SALONEN ◽  
A.M. RAUSTIA
Keyword(s):  
Follow Up Study ◽  
Metal Ceramic

Bone loss in patients with Crohn's disease: A longterm-follow up study

2001 ◽  
Vol 120 (5) ◽  
pp. A628-A628
Author(s):  
P CLEMENS ◽  
V HAWIG ◽  
M MUELLER ◽  
J SCAENZLIN ◽  
B KLUMP ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Bone Loss ◽  
Follow Up Study

733: The Prognostic Value of E-Cadherin, Alpha-, and Beta-Catenin in Invasive Bladder Cancer Patients: Long Term Follow-Up Study

2004 ◽  
Vol 171 (4S) ◽  
pp. 194-195
Author(s):  
Kyoichi Tomita ◽  
Haruki Kume ◽  
Keishi Kashibuchi ◽  
Satoru Muto ◽  
Shigeo Horie ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Cancer Patients ◽  
Prognostic Value ◽  
Invasive Bladder Cancer ◽  
Beta Catenin ◽  
Follow Up Study ◽  
Long Term Follow Up ◽  
E Cadherin
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