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Dive into the research topics where Claudia El Gammal is active.

Publication


Featured researches published by Claudia El Gammal.


Skin Research and Technology | 1998

Quantification of vascular dysregulation in atopic dermatitis using laser Doppler perfusion imaging.

Markus Stäcker; Armin Heese; Klaus Hoffmann; Claudia El Gammal; Peter Altmeyer

Background/aims: The reactivity of cutaneous microcirculation to prostaglandin liberators and histamine has a wide variation in man. Especially patients with atopic dermatitis show frequently altered reactions like the paradox anemic reaction to nicotinic acid esters and the abnormally weak reaction to intracutaneous histamine injection. We wanted to investigate the reproducibility and sensitivity of two‐dimensional laser Doppler perfusion imaging (LDPI) in quantifying these phenomena.


Hautarzt | 2004

Bildgebende Verfahren in der Dermatologie

Stephan El Gammal; Claudia El Gammal; Christiane Szliska; Tatjana Burgdorff; Michael Landthaler; Wilhelm Stolz

Die hochfrequente Sonographie (> 20MHz) wird zur Bestimmung der raumlichen lateralen Ausdehnung und Tiefenausdehnung von Hautveranderungen verwendet. Echoreflexe entstehen im Wesentlichen an Gewebsgrenzen unterschiedlicher Impedanz und durch Gewebsinhomogenitaten. Aufgrund der Schallkopfgeometrie und der Physik entstehen verschiedene Bildartefakte, die bei Unkenntnis zu Fehlinterpretationen fuhren konnen. Ziel muss es deshalb sein, diese Artefakte als solche zu erkennen.


Archive | 2014

Sonography of the Skin

Stephan El Gammal; Claudia El Gammal; Peter Altmeyer; M. Vogt

Sonography is the oldest noninvasive cross-sectional method to study the skin. Due to technical improvements and advances in signal and image processing in the past 30 years, high-resolution sonography has become a routine diagnostic tool in dermatology.


Journal of Investigative Dermatology | 1999

Sonography of the Skin at 100 MHz Enables In Vivo Visualization of Stratum Corneum and Viable Epidermis in Palmar Skin and Psoriatic Plaquesy1

Stephan El Gammal; Claudia El Gammal; K. Kaspar; C. Pieck; Peter Altmeyer; M. Vogt; H. Ermert


Journal of Investigative Dermatology | 1996

Improved resolution of magnetic resonance microscopy in examination of skin tumors.

Stephan El Gammal; Roland Hartwig; Sitke Aygen; Thomas Bauermann; Claudia El Gammal; Peter Altmeyer


Phlebologie | 1999

Durchmesser der Vena saphena magna in der Krossenregion bei gesunden Venen und primärer Stammvarikosis

T. Reuther; R. Nordmeier; Claudia El Gammal; Peter Altmeyer; S. El Gammal


Archive | 2006

High-Resolution Sonography of the Epidermis In Vivo

Stephan El Gammal; Claudia El Gammal; Peter Altmeyer; M. Vogt; H. Ermert


Archive | 2006

Quantification of Sebum Output Using Sebum-Absorbent Tapes (Sebutapes®)

Claudia El Gammal; Stephan El Gammal; Alessandra Pagnoni; Albert M. Kligman


Archive | 2016

Evaluation of the Cutis by High-Resolution Sonography

Stephan El Gammal; Claudia El Gammal; Peter Altmeyer; M. Vogt


Klinikleitfaden Dermatologie (3. Auflage) | 2011

8 – Systemische Erkrankungen mit Hautbeteiligung

Claudia El Gammal; Thomas Dirschka; Roland Hartwig; Johannes Niesmann; Claus Oster-Schmidt

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M. Vogt

Ruhr University Bochum

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H. Ermert

Ruhr University Bochum

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Armin Heese

Ruhr University Bochum

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C. Pieck

Ruhr University Bochum

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K. Kaspar

Ruhr University Bochum

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