Evaluation: Difference between revisions

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Mikael Häggström (talk | contribs)
Mikael Häggström (talk | contribs)
Counts per mm2: Consistent
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When your instructions are to count a specific number of HPFs, one HPF can be assumed to be 0.2 mm<sup>2</sup>.<ref name="KlimstraModlin2010">{{cite journal|last1=Klimstra|first1=David S.|last2=Modlin|first2=Irvin R.|last3=Coppola|first3=Domenico|last4=Lloyd|first4=Ricardo V.|last5=Suster|first5=Saul|title=The Pathologic Classification of Neuroendocrine Tumors|journal=Pancreas|volume=39|issue=6|year=2010|pages=707–712|issn=0885-3177|doi=10.1097/MPA.0b013e3181ec124e}}</ref> If the view in your microscope significantly differs from this area, calculate how many locations you need to count as:
When your instructions are to count a specific number of HPFs, one HPF can be assumed to be 0.2 mm<sup>2</sup>.<ref name="KlimstraModlin2010">{{cite journal|last1=Klimstra|first1=David S.|last2=Modlin|first2=Irvin R.|last3=Coppola|first3=Domenico|last4=Lloyd|first4=Ricardo V.|last5=Suster|first5=Saul|title=The Pathologic Classification of Neuroendocrine Tumors|journal=Pancreas|volume=39|issue=6|year=2010|pages=707–712|issn=0885-3177|doi=10.1097/MPA.0b013e3181ec124e}}</ref> If the view area in your microscope significantly differs from this area, calculate how many views you need to count as:
{|class=
{|class=
|rowspan=2| Locations = HPFs required x ||align=center| 0.2
|rowspan=2| Views = HPFs required x ||align=center| 0.2
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| <span style="text-decoration: overline">Your microscope area in 0.2 mm<sup>2</sup></span>
| <span style="text-decoration: overline">Your microscope area in 0.2 mm<sup>2</sup></span>
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For example, if you should count 10 HPFs and each view in your microscope shows 0.096 mm<sup>2</sup>, you should count in this many locations:
For example, if you should count 10 HPFs and each view in your microscope shows 0.096 mm<sup>2</sup>, you should count in this many views:
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|rowspan=2| 10 x ||align=center|0.2 ||rowspan=2| ≈ 21
|rowspan=2| 10 x ||align=center|0.2 ||rowspan=2| ≈ 21