Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording
Itching tends to worsen at night in patients with itchy skin diseases, such as atopic dermatitis. Unconscious scratching during sleep can exacerbate symptoms, cause sleep disturbances, or reduce quality of life. Therefore, evaluating nocturnal scratching behaviour is important for better patient car...
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| Format: | Article |
| Language: | English |
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Medical Journals Sweden
2025-01-01
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| Series: | Acta Dermato-Venereologica |
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| Online Access: | https://medicaljournalssweden.se/actadv/article/view/41414 |
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| author | Saori Toyota Takamasa Kogure Eitaro Kondo Ken-ichi Yasuda Yozo Ishiuji Toshiya Ebata |
| author_facet | Saori Toyota Takamasa Kogure Eitaro Kondo Ken-ichi Yasuda Yozo Ishiuji Toshiya Ebata |
| author_sort | Saori Toyota |
| collection | DOAJ |
| description | Itching tends to worsen at night in patients with itchy skin diseases, such as atopic dermatitis. Unconscious scratching during sleep can exacerbate symptoms, cause sleep disturbances, or reduce quality of life. Therefore, evaluating nocturnal scratching behaviour is important for better patient care. However, no report exists on the specific detection of overnight scratching behaviour of patients with atopic dermatitis using a non-wearable sensor. A novel algorithm was developed to specifically detect scratching behaviour using a non-wearable sheet-shaped body vibrometer placed under the mattress. To evaluate the algorithm, the sleep of 7 patients with atopic dermatitis and 3 healthy participants was simultaneously measured using an infrared camera and the sheet-shaped body vibrometer. Scratching time was then used as the gold standard, which was determined visually from the infrared video. The proposed method of detecting vibration was compared with the conventional method using the activity score measured by a sheet-shaped body vibrometer. Spearman’s correlation coefficients of the conventional and proposed methods were 0.72 and 0.89, respectively. The Bland–Altman plot results confirmed that the proposed method avoided overestimation of scratching time in patients with short scratching times because it excluded activities other than scratching behaviour, such as turning over.
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| format | Article |
| id | doaj-art-e49acbf69380429582eacbf5c91f5d31 |
| institution | Kabale University |
| issn | 0001-5555 1651-2057 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Medical Journals Sweden |
| record_format | Article |
| series | Acta Dermato-Venereologica |
| spelling | doaj-art-e49acbf69380429582eacbf5c91f5d312025-01-26T09:59:52ZengMedical Journals SwedenActa Dermato-Venereologica0001-55551651-20572025-01-0110510.2340/actadv.v105.41414Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video RecordingSaori Toyota0Takamasa Kogure1Eitaro Kondo2Ken-ichi Yasuda3Yozo Ishiuji4Toshiya Ebata5Paramount Bed Sleep Research Laboratory, PARAMOUNT BED CO., LTD, Tokyo, JapanParamount Bed Sleep Research Laboratory, PARAMOUNT BED CO., LTD, Tokyo, JapanParamount Bed Sleep Research Laboratory, PARAMOUNT BED CO., LTD, Tokyo, JapanDepartment of Dermatology, The Jikei University School of Medicine, Tokyo, JapanDepartment of Dermatology, The Jikei University School of Medicine, Tokyo, JapanChitofuna Dermatology Clinic, Tokyo, JapanItching tends to worsen at night in patients with itchy skin diseases, such as atopic dermatitis. Unconscious scratching during sleep can exacerbate symptoms, cause sleep disturbances, or reduce quality of life. Therefore, evaluating nocturnal scratching behaviour is important for better patient care. However, no report exists on the specific detection of overnight scratching behaviour of patients with atopic dermatitis using a non-wearable sensor. A novel algorithm was developed to specifically detect scratching behaviour using a non-wearable sheet-shaped body vibrometer placed under the mattress. To evaluate the algorithm, the sleep of 7 patients with atopic dermatitis and 3 healthy participants was simultaneously measured using an infrared camera and the sheet-shaped body vibrometer. Scratching time was then used as the gold standard, which was determined visually from the infrared video. The proposed method of detecting vibration was compared with the conventional method using the activity score measured by a sheet-shaped body vibrometer. Spearman’s correlation coefficients of the conventional and proposed methods were 0.72 and 0.89, respectively. The Bland–Altman plot results confirmed that the proposed method avoided overestimation of scratching time in patients with short scratching times because it excluded activities other than scratching behaviour, such as turning over. https://medicaljournalssweden.se/actadv/article/view/41414actigraphyatopic dermatitisitchingnocturnal scratchingsleep |
| spellingShingle | Saori Toyota Takamasa Kogure Eitaro Kondo Ken-ichi Yasuda Yozo Ishiuji Toshiya Ebata Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording Acta Dermato-Venereologica actigraphy atopic dermatitis itching nocturnal scratching sleep |
| title | Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording |
| title_full | Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording |
| title_fullStr | Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording |
| title_full_unstemmed | Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording |
| title_short | Scratch Scoring by a Sheet-shaped Body Vibrometer in Nocturnal Sleep: A Pilot Study Compared with Infrared Video Recording |
| title_sort | scratch scoring by a sheet shaped body vibrometer in nocturnal sleep a pilot study compared with infrared video recording |
| topic | actigraphy atopic dermatitis itching nocturnal scratching sleep |
| url | https://medicaljournalssweden.se/actadv/article/view/41414 |
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