Factors influencing diagnostic accuracy

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Main PageDiagnostic accuracyFactors influencing diagnostic accuracy
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There is overwhelming evidence confirming, that dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections. improves the diagnostic accuracyThis glossary term has not yet been described. for melanomaThis glossary term has not yet been described. in comparison to inspection with unaided eye.

Type of algorithmIn mathematics and computer science, an algorithm (Listeni/ˈælɡərɪðəm/ AL-gə-ri-dhəm) is a self-contained sequence of actions to be performed. Algorithms can perform calculation, data processing and automated reasoning tasks. used to evaluate the lesions

  • Pattern analysisThis glossary term has not yet been described.[1]
  • ABCDThis glossary term has not yet been described. rule[2]
  • SevenThis glossary term has not yet been described. pointThis glossary term has not yet been described. checklistis a type of informational job aid used to reduce failure by compensating for potential limits of human memory and attention.[3]
  • Menzies and associates algorithm[4]
A number of diagnostic algorithms have been developed for the dermoscopic evaluation of pigmented lesions. Pattern analysis has been shown to have a higher specificityThis glossary term has not yet been described. than the other algorithms, but no significant differences were found with regard to sensitivityThis glossary term has not yet been described..[5]

ReferencesThis is material contained in a footnote or bibliography holding further information.
  1. Pehamberger et al.: In vivo epiluminescence microscopy of pigmented skin lesions. I. Pattern analysis of pigmented skin lesions. J. Am. Acad. Dermatol. 1987;17:571-83. PMID: 3668002.
  2. Nachbar et al.: The ABCD rule of dermatoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections.. High prospective value in the diagnosisis the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines with variations in the use of logic, analytics, and experience to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions of doubtful melanocyticThis glossary term has not yet been described. skin lesions. J. Am. Acad. Dermatol. 1994;30:551-9. PMID: 8157780.
  3. Argenziano et al.: Epiluminescence microscopy for the diagnosis of doubtful melanocytic skin lesions. Comparison of the ABCD rule of dermatoscopy and a new 7-point checklist based on pattern analysisThis glossary term has not yet been described.. Arch Dermatol 1998;134:1563-70. PMID: 9875194.
  4. Menzies et al.: Frequency and morphologic characteristics of invasive melanomas lacking specific surface microscopic features. Arch Dermatol 1996;132:1178-82. PMID: 8859028.
  5. Kittler et al.: Diagnostic accuracyThis glossary term has not yet been described. of dermoscopy. Lancet Oncol. 2002;3:159-65. PMID: 11902502.