SBS - The best value in QMS software

Sample Size Calculation for Image Analysis - Microscopy

V

v9991

Trusted Information Resource
#1
#1
typical analysis involves,

Preparation of samples(~1) --- capturing images(~ 1-10) --- analysis of images ( ~ 70-300 per image; ) - final results.( 500-1000 particle-counts)
typically we report the size of particles.

the question is, what is considered under sample size?
should it be applied to
no. of image?
no. of particles?
no. of samples?

my interpretation and rationale is that.,
no. of samples & particles is function of product performance ( finalized during development)

as part of analysis, no. of particles and images are required to be included in the analysis.
 
12 questions to ask before buying a QMS
Elsmar Forum Sponsor
R

reynald

Quite Involved in Discussions
#2
#2
v9991 said:
typical analysis involves,

Preparation of samples(~1) --- capturing images(~ 1-10) --- analysis of images ( ~ 70-300 per image; ) - final results.( 500-1000 particle-counts)
typically we report the size of particles.

the question is, what is considered under sample size?
should it be applied to
no. of image?
no. of particles?
no. of samples?

my interpretation and rationale is that.,
no. of samples & particles is function of product performance ( finalized during development)

as part of analysis, no. of particles and images are required to be included in the analysis.
Click to expand...
What do you want to establish? The average size of the particles? Then the relevant sample size is the number of particles you measured.

Is it the proportion of samples that have particles? Then it is the samples that count.
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
H Sample Size Calculation (Confidence Interval and Reliability) - Medical Devices Reliability Analysis - Predictions, Testing and Standards 6
J Minitab Sample Size Calculation: 1 Sample t vs Minimum Sample Size for Means Using Minitab Software 3
P Sample Size Calculation help needed Reliability Analysis - Predictions, Testing and Standards 4
C Sample Size Calculation Formula for Process Capability Statistical Analysis Tools, Techniques and SPC 25
P Sample Size for Capability Calculation Inspection, Prints (Drawings), Testing, Sampling and Related Topics 33
D Validate 99.5% reliability 90% confidence - Sample size calculation Reliability Analysis - Predictions, Testing and Standards 4
U The Importance of Correct Sample Size Calculation - Greek Alphabet Soup Book, Video, Blog and Web Site Reviews and Recommendations 7
T Sample Size Calculation for PPM (Parts Per Million) Prediction Statistical Analysis Tools, Techniques and SPC 6
C Stress / Challenge Conditions for Design Verification Testing to Reduce Sample Size 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 11
K How can Acceptance Number and Reject Number be larger than Sample Size on Z1.4 Table? Inspection, Prints (Drawings), Testing, Sampling and Related Topics 8
J Validation Sample Size for Tray Seal Qualification and Validation (including 21 CFR Part 11) 1
D Design Verification Sample Size vs Repeats Statistical Analysis Tools, Techniques and SPC 9
M Minimum sample size - Guidance and statistical rationale Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
P Unrealistic Packaging Validation Sample Size 21 CFR Part 820 - US FDA Quality System Regulations (QSR) 13
J Control chart for huge sample size Statistical Analysis Tools, Techniques and SPC 9
S Is there a standard for sample size during R&D phase Other ISO and International Standards and European Regulations 18
J Sample size definition in an Automotive SMT pilot lot run Misc. Quality Assurance and Business Systems Related Topics 1
E Correct way to certify hydrostatic testing when it is not 100% (and Sample Size) Various Other Specifications, Standards, and related Requirements 6
B Determining sample size for device sterility Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
D Determining of sample size for 'Operational Qualification' AQL - Acceptable Quality Level 5
F Bayes Success run Theorem for sample size during OQ&PQ Qualification and Validation (including 21 CFR Part 11) 4
I Device modifications - Clinical sample size rationale EU Medical Device Regulations 5
J Sample size for creating a data base as a reference to a tested variable Other Medical Device and Orthopedic Related Topics 6
T Sample Size for Design Validation Design and Development of Products and Processes 4
C AS9138 Sample Size Determination AS9100, IAQG, NADCAP and Aerospace related Standards and Requirements 1
V Acceptable maximum RSD (relative standard deviation) for an sample size Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
E Sample size for design verification of variable in single use device Design and Development of Products and Processes 19
R Sample size for clinical validation/investigation EU Medical Device Regulations 4
R Process Validation sample size selection Statistical Analysis Tools, Techniques and SPC 0
J Interesting Discussion Sample Size Determination for Medical Device Other Medical Device and Orthopedic Related Topics 9
P Is it possible to make an educated decision using a very very small sample size? Inspection, Prints (Drawings), Testing, Sampling and Related Topics 3
F Sample Size for Biocompatibility Tests Other Medical Device Related Standards 4
V Firmware Verification Testing & Sample Size Software Quality Assurance 1
R Determining Sample Size for Medical Device Component Validation Inspection, Prints (Drawings), Testing, Sampling and Related Topics 0
S Surveillance Sampling Test - Determining Sample Size Inspection, Prints (Drawings), Testing, Sampling and Related Topics 5
P Cleaning and Disinfection Validation Sample Size of 3? Other Medical Device Related Standards 2
G Sample Size, Significant Figures, Scale General Measurement Device and Calibration Topics 3
L Heated Sealed Packages - Sample Size for OQ (Operational Qualification) and PQ Inspection, Prints (Drawings), Testing, Sampling and Related Topics 11
P Frequency and Sample Size Requirements for an MSA Studies Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 4
V When and How to apply the Bayes Success Run approach for Sample Size Determination Inspection, Prints (Drawings), Testing, Sampling and Related Topics 4
N Sample Size Justification for Medical Device Shelf-Life Inspection, Prints (Drawings), Testing, Sampling and Related Topics 13
C Process Qualification Sample size Document Control Systems, Procedures, Forms and Templates 6
G Sample size for IEC 60601-1-11 environmental tests IEC 60601 - Medical Electrical Equipment Safety Standards Series 1
G IEC 60601-1-2 Sample Size issue Other Medical Device Related Standards 1
A How to calculate Mean and standard deviation without sample size in Minitab Using Minitab Software 5
D What is the minimum Sample Size for Weibull Analysis Reliability Analysis - Predictions, Testing and Standards 12
C Sample Size for Stability Testing Other Medical Device and Orthopedic Related Topics 2
M Calculating Cpk when sample size equals to 1 Capability, Accuracy and Stability - Processes, Machines, etc. 12
F Power and sample size for factorial design Using Minitab Software 4
S Sample Subgroup Size for NP/P chart - nPbar>=5 Statistical Analysis Tools, Techniques and SPC 4

Similar threads

Top Bottom