To what extend is nail ultrasound discriminative between psoriasis, psoriatic arthritis and healthy subjects?

Naredo, Esperanza; Janţă, Iustina; Baniandrés‐Rodríguez, Ofelia; Valor, Lara; Hinojosa, M.; Bello, Natalia; Serrano, B.; Garrido, Jesús

doi:10.1007/s00296-018-4222-y

Cited by 24 publications

(34 citation statements)

References 19 publications

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“…Nail disease in psoriasis has been correlated with the presence of enthesopathy and psoriatic arthritis, even in the absence of clinical signs. Therefore, with clinically inconclusive signs of a psoriatic onychopathy, US may add useful information [50][51][52].…”

Section: Psoriasismentioning

confidence: 99%

European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Position Statement on Dermatologic Ultrasound

et al. 2020

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Dermatologic ultrasound is a recent application of ultrasound for the evaluation of healthy skin and appendages and their diseases. Although the scientific literature regarding this application is still not sufficient for evidence-based guidelines, general recommendations issued by scientific societies are necessary. The EFSUMB (European Federation of Societies for Ultrasound in Medicine and Biology) steering committee for dermatologic ultrasound has developed a series of consensus position statements regarding the main fields of dermatologic ultrasound (technical requirement, normal skin and appendages, inflammatory skin diseases, tumoral skin diseases, aesthetic dermatology and practice-training requirements). This document is the foundation for future evidence-based recommendations and guidelines for dermatologic ultrasound practice.

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Section: Psoriasismentioning

confidence: 99%

European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Position Statement on Dermatologic Ultrasound

et al. 2020

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“…Literature data regarding NU USG in healthy volunteers are scarce and most researchers focus on NU pathologies (particularly psoriasis) ( 18 – 20 ). The pioneers of a nail plate thickness analysis using ultrasound transmission time were Finlay et al ( 21 ).…”

Section: Discussionmentioning

confidence: 99%

“…Unfortunately, in our study images gained from d1 and nd1 had insufficient quality, although repeated attempts to visualize these NU were performed. The difficulties were related to the limitations of our probe (inability to fit the (18)(19)(20). The pioneers of a nail plate thickness analysis using ultrasound transmission time were Finlay et al (21).…”

Section: Hf-usgmentioning

confidence: 99%

High-Frequency Ultrasonography and Evaporimetry in Non-invasive Evaluation of the Nail Unit

et al. 2021

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Background: The nail unit (NU) is a complex structure that performs a number of functions, including protection, defense, manipulation, and palpation. Non-invasive research methods can facilitate the recognition of NU structure and function. Evaporimetry and HF-USG due to their availability of equipment and low research costs seem to be particularly noteworthy, but so far have been assessed to a limited extent. The aim of the presented study was to check the usefulness of TOWL and HF-USG in examination of NU.Materials and Methods: A total of 58 volunteers aged 25–65 years (mean age: 41 ± 10.16 years) were qualified for the study. The subjects did not present symptoms of clinically evident onychopathy and did not suffer from any dermatoses associated with lesions occurring within the NU. Additionally, the patients did not suffer from systemic diseases that could affect NU (including heart, lung, and endocrine diseases). In all volunteers, the measurement of TOWL and 20 MHz ultrasonography [high-frequency ultrasonography (HF-USG)] with the special emphasis on determination of nail plate thickness were performed.Results: Analysis of 464 HF-USG images revealed that the nail plate presented as two hyperechoic, parallel streaks (railway sign) with a linear hypoechoic middle layer between them. Matrix was visualized as a hypoechoic structure with blurred boundaries, mostly within the fourth and fifth fingers and more often in women. We found statistically significant correlations between the type of a finger and the thickness of the nail plate both in the entire study group and taking into account gender. In the dominant hand, the results were r = −0.341; p < 0.001; r = −0.417, p < 0.001; and r = 0.337; p = 0.001 (for the whole group, for women, and for men, respectively). In the non-dominant hand, the results were r = −0.465; p < 0.001; r = −0.493, p < 0.01; and r = −0.503; p < 0.01 (for the whole group, for women, and for men, respectively). There were statistically significant differences in the thickness of the nail plates of the corresponding types of fingers between female and male NUs. Statistically significant correlations were found between the type of a finger and the TOWL value in the whole group and taking into account gender (p < 0.05), except for the non-dominant hand in men. There were no statistically significant differences in the TOWL values of the corresponding types of fingers between male and female NUs (p > 0.05). There was no statistically significant correlation between the TOWL value and the nail plate thickness in any of the tested NUs, apart from the one statistically significant correlation in nd5 (r = 0.390, p = 0.021).Conclusions: To sum up, non-invasive methods, such as HF-USG and TOWL, enable assessment of the NU and are useful in examination of its structure and function. HF-USG shows characteristic elements of NUs that can be distinguished because of differences in their echogenicity. The thickness of the nail plate and TOWL depend on the type of finger, and show a relationship with gender.

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“…5 ) and surrounding tissues, and display the characteristic ultrasound manifestations of tumors, psoriasis, cysts, vascular malformations and other diseases around nail 11 , 12 . At present, there are more and more researches on nail disease sonography, such as in psoriasis, ultrasonography is commonly used to monitor disease progression 12 – 14 . Similarly, High frequency ultrasound can be used to diagnose and localize the subungual glomus tumor.…”

Section: Discussionmentioning

confidence: 99%

Diagnosis of Subungual Glomus Tumors with 18 MHz Ultrasound and CDFI

Chen

Gao

Chen

et al. 2020

Sci Rep

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To evaluate the imaging features of subungual glomus tumors using 18 MHz high-frequency ultrasound with CDFI (Color Doppler Flow Imaging). 20 patients treated by surgical resection and examined by ultrasound between January 2008 and December 2019. All eligible cases are divided into two groups: Group A used the probe frequency of 9–14 MHz from January 2008 to December 2014, and Group B used the probe frequency of 18 MHz from January 2015 to December 2019. Patient demographics, clinical records, pathologic specimens and sonography features were reviewed. 50% of tumors in Group A and 100% of tumors in Group B showed clear boundary and regular shape. Blood flow signals were identified inside 50% tumors in Group A (3 in 6), all 14 cases with blood flow signals detected in Group B (14 in 14,100%). 2 cases were misdiagnosed and 1 case escaped diagnosis in Group A, no case was misdiagnosed in Group B. The accuracy of diagnosis rate of Group B is significantly higher than that of Group A. 18-MHz ultrasound combined with CDFI may be a practical useful tool for detecting subungual glomus tumors. More importantly 18-MHz ultrasound can obviously improve the diagnostic accuracy.

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To what extend is nail ultrasound discriminative between psoriasis, psoriatic arthritis and healthy subjects?

Cited by 24 publications

References 19 publications

European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Position Statement on Dermatologic Ultrasound

European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) Position Statement on Dermatologic Ultrasound

High-Frequency Ultrasonography and Evaporimetry in Non-invasive Evaluation of the Nail Unit

Diagnosis of Subungual Glomus Tumors with 18 MHz Ultrasound and CDFI

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