Manu Krishnan Krishnan Nambudiri, A. Rajanbabu, Indu Ramachandran Nair, Anandita, Shantikumar V Nair, Manzoor Koyakutty, Girish Chundayil Madathil
{"title":"Development of a portable Raman device with artificial intelligence method for the detection and staging of endometrial cancer","authors":"Manu Krishnan Krishnan Nambudiri, A. Rajanbabu, Indu Ramachandran Nair, Anandita, Shantikumar V Nair, Manzoor Koyakutty, Girish Chundayil Madathil","doi":"10.1002/tbio.202200014","DOIUrl":"https://doi.org/10.1002/tbio.202200014","url":null,"abstract":"The success of a Raman spectroscopy device in cancer detection lies in its ability to acquire high‐quality Raman signals from samples and to employ efficient classification algorithms in analysing spectral data. Portable Raman systems enabled with artificial intelligence tools are well adaptable to clinical settings and for accuracy for community‐level rapid screening. Here, we developed a robotic Raman device with a high‐efficiency Raman probe, validating it against endometrial cancers detecting high‐grade, low‐grade cancers and normal classes. Algorithms like principal component analysis‐discriminant analysis, and support vector machine were compared against the deep learning methodology; convolutional neural network (CNN) with and without data augmentation. Eventually, the system could classify high‐grade, low‐grade and normal tissues with an F1‐score of 91%, 94% and 97%, respectively. CNN with data augmentation proved to be the most dependable classifier that works well even in the presence of high background noise. Thus, we demonstrate a unique portable Raman device with AI tools for high‐sensitivity Raman analysis of endometrial cancer.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47698496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aikaterini Pistiki, Markus Salbreiter, Salwa Sultan, P. Rösch, J. Popp
{"title":"Application of Raman spectroscopy in the hospital environment","authors":"Aikaterini Pistiki, Markus Salbreiter, Salwa Sultan, P. Rösch, J. Popp","doi":"10.1002/tbio.202200011","DOIUrl":"https://doi.org/10.1002/tbio.202200011","url":null,"abstract":"The hospital environment is a field with unique microbiological characteristics. Pathogens evolve and spread in different areas of the hospital affecting patients and staff. In addition, a constant circulation of pathogens between the hospital and the outer environment is ongoing. In this context, an extensive management is required in order to minimize the harmful effect of hospital flora on humans as well as the natural environment. Raman spectroscopy has been shown to be an effective tool for this purpose since it is applicable in a variety of biological samples ranging from the patient samples to the hospital's wastewater. It enables the detection of infection, bacterial species identification, antimicrobial resistance determination, epidemiological typing as well as infection control, mandatory for hospital management. The biggest advantages of this analytical method are the limited time and minimal resources required in its workflow. In the current review the Raman‐based analytical methods that have been developed over years in the field of microbiology are presented and their applicability in the different areas of the hospital environment is discussed.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46821481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Charles DeLorey, Joseph Davids, João Cartucho, Chi Xu, Alfie Roddan, Amr Nimer, H. Ashrafian, A. Darzi, Alexander J. Thompson, S. Akhond, M. Runciman, G. Mylonas, Stamatia Gianarrou, James Avery
{"title":"A cable‐driven soft robotic end‐effector actuator for probe‐based confocal laser endomicroscopy: Development and preclinical validation","authors":"Charles DeLorey, Joseph Davids, João Cartucho, Chi Xu, Alfie Roddan, Amr Nimer, H. Ashrafian, A. Darzi, Alexander J. Thompson, S. Akhond, M. Runciman, G. Mylonas, Stamatia Gianarrou, James Avery","doi":"10.1002/tbio.202200015","DOIUrl":"https://doi.org/10.1002/tbio.202200015","url":null,"abstract":"Soft robotics is becoming a popular choice for end‐effectors. An end‐effector was designed that has various advantages including ease of manufacturing, simplicity and control. This device may have the advantage of enabling probe‐based devices to intraoperatively measure cancer histology, because it can flexibly and gently position a probe perpendicularly over an area of delicate tissue. This is demonstrated in a neurosurgical setting where accurate cancer resection has been limited by lack of accurate visualisation and impaired tumour margin delineation with the need for in‐situ histology. Conventional surgical robotic end‐effectors are unsuitable to accommodate a probe‐based confocal laser endomicroscopy (p‐CLE) probe because of their rigid and non‐deformable properties, which can damage the thin probe. We have therefore designed a new soft robotic platform, which is advantageous by conforming to the probe's shape to avoid damage and to facilitate precision scanning.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44431531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Superficial shaving combined with photodynamic therapy is effective as a treatment for condyloma acuminatum","authors":"Jie Pan, Mingliang Chen, Shuang Zhao, Juan Su","doi":"10.1002/tbio.202200007","DOIUrl":"https://doi.org/10.1002/tbio.202200007","url":null,"abstract":"Condyloma acuminatum is a common sexually transmitted disease caused by human papillomavirus. Its prevalence and recurrence rates are high. While there are multiple treatment options for condyloma acuminatum, no single therapy form is effective in achieving complete remission. Photodynamic therapy (PDT) was shown to be very promising as a treatment option for condyloma acuminatum. However, for some patients the therapeutic result after a single PDT session is not satisfactory. Thus, it is necessary to develop an effective treatment method for recalcitrant condyloma acuminatum.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50911527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carmen Cantisani, Raimondo Rossi, Steven Paul Nisticò, Martina Vitiello, Francesca Farnetani, Luigi Bennaro, Giovanni Pellacani
{"title":"Management of patients with giant basal cell carcinoma during SARS COV2 outbreak in Italy.","authors":"Carmen Cantisani, Raimondo Rossi, Steven Paul Nisticò, Martina Vitiello, Francesca Farnetani, Luigi Bennaro, Giovanni Pellacani","doi":"10.1002/tbio.202200009","DOIUrl":"10.1002/tbio.202200009","url":null,"abstract":"<p><p>Basal cell carcinoma (BCC) is the most frequently occurring type of all cancers, and represents 80% of all skin cancer. The estimated lifetime risk for BCC in the white population is between 33% and 39% for men and 23% and 28% for women. Its incidence doubles every 25 years and is increasing in the young population. Death is uncommon and seems to decrease in the last years, probably due to early and better diagnosis. BCC arises from abnormal and uncontrolled growth of basal cells. It is a slow-growing tumor, therefore usually curable at an early stage with surgery or alternative treatment, such as cryotherapy, laser, photodynamic therapy, retinoids and topical agent like 5-Fluorouracil cream, imiquimod cream, and so forth. Topical treatment of superficial basocellular carcinoma is a viable option, when surgery is not an advisable treatment, especially in the case of giant basocellular carcinoma. In this subtype, imiquimod 5% cream can be a safe and effective treatment, but there are few reports in available literature. We present our case series of eight patients with superficial giant basocellular carcinoma successfully treated with imiquimod 5% cream, which showed clinical improvement after 8 weeks of treatment.</p>","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":" ","pages":"e202200009"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9350373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40596688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gopi Maguluri, John Grimble, Mircea Mujat, Jesung Park, Aliana Caron, Nicusor Iftimia
{"title":"Fiber-based hand-held RCM-OCT probe for noninvasive assessment of skin lesions and therapy guidance.","authors":"Gopi Maguluri, John Grimble, Mircea Mujat, Jesung Park, Aliana Caron, Nicusor Iftimia","doi":"10.1002/tbio.202200002","DOIUrl":"https://doi.org/10.1002/tbio.202200002","url":null,"abstract":"<p><p>Noninvasive assessment of skin lesions, especially of basal cell carcinoma (BCC), has benefited more recently from the use of optical imaging techniques such as optical coherence tomography (OCT) and reflectance confocal microscopy (RCM). While RCM provides submicron scale resolution and thus enables identification of skin morphological changes of the skin, with the downside of limited penetration depth, OCT imaging of the same lesion brings the benefit of better resolving its depth of invasion. OCT and RCM can be used either individually or combined within the same instrument for the noninvasive diagnosis of nonmelanoma skin cancers (NMSCs). Their combined use has shown to provide certain benefits such as better characterization of the lesion's margins, both in depth and laterally, as well as improved sensitivity and specificity, as previously demonstrated by our team. In this paper we report a new \"fiber-based\" implementation of the second-generation RCM-OCT hand-held probe. The fiber-based implementation of both imaging modalities enabled the construction of a smaller footprint/lower weight hand-held probe. Its preliminary evaluation on the skin of healthy volunteers is reported here, demonstrating improved capabilities for resolving sub-cellular structures and image skin morphology with micron-scale resolution to a higher depth than in the previous implementation, while also enabling the construction of angiography maps showing vascular remodeling.</p>","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9514145/pdf/nihms-1811900.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10291064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A chlorin e6 derivative‐mediated photodynamic therapy for patients with cervical and vaginal low‐grade squamous intraepithelial lesions: a retrospective analysis","authors":"Hongxia Yao, Jia Yan, Zhongxia Zhou, Shuzhan Shen, Yun Wu, Pei Liu, Haiyan Zhang, Xiuli Wang","doi":"10.1002/tbio.202200006","DOIUrl":"https://doi.org/10.1002/tbio.202200006","url":null,"abstract":"Cervical and vaginal low‐grade squamous intraepithelial lesions (LSIL) are associated with persistent human papillomavirus infections, and require an efficacious non‐invasive treatment such as photodynamic therapy due to anatomical characteristics. In this study, we evaluated the clinical efficacy and safety of a chlorin e6 derivative named STBF‐mediated photodynamic therapy (STBF‐PDT) for patients with cervical and vaginal LSIL. A total of 18 patients received STBF‐PDT for 3 to 6 times and followed up for 6 to 12 months; among them, 6 had cervical and vaginal LSIL and 1 had vaginal stump LSIL after hysterectomy for cervical cancer. Results showed the complete remission (CR) rates were 72.22% (13/18), and the HPV remission rates and HPV clearance rates were 88.89% (16/18) and 83.33% (15/18), respectively at 1‐month follow‐up. The CR reached 88.89% and HPV remission rates got 94.44% at the 6‐month follow‐up. There were no recurrence cases so far, and no pain, heaving sensation, scar, deformity, and any other obvious adverse reactions occurred during treatment and follow‐up. In conclusion, STBF‐PDT is an effective, safe, and well‐tolerated method for the treatment of cervical and vaginal LSIL. It may have promising potential for applications in the future.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41490836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Side‐viewing handheld confocal Raman probe coupled with an off‐axis parabolic mirror for superficial epithelial Raman measurements of luminal organs","authors":"Jianfeng Wang, Gu-ling Zhang","doi":"10.1002/tbio.202200010","DOIUrl":"https://doi.org/10.1002/tbio.202200010","url":null,"abstract":"We report on the development of a side‐viewing handheld confocal Raman probe coupled with an off‐axis parabolic (OAP) mirror for superficial epithelial Raman measurements of luminal organs. The OAP mirror realizes an effective numerical aperture of 0.36, a measured Raman excitation spot diameter of 130 μm and a depth of focus of 128 μm, allowing real time Raman spectra acquisition. The OAP mirror tilts the Raman optical path by 90°, making it well suited for superficial epithelium Raman interrogation of luminal organs. In addition, the probe results in no Raman interferences that may arise from transmission optics. The superficial epithelium Raman interrogation capability of the probe developed is validated through a two‐layer tissue phantom experiment. This work suggests the potential of the side‐viewing handheld confocal Raman probe coupled with an OAP mirror for enhancing the diagnosis of epithelial precancer and cancer of luminal organs.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44096971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jing-fang Shi, Jia Yan, Yang Yutong, Jianhua Huang, Min-Feng Wu, Xiuli Wang, Hong-wei Wang, Lei Shi
{"title":"Keratoacanthoma‐like squamous cell carcinoma successfully treated by the surgery combined with ALA‐PDT","authors":"Jing-fang Shi, Jia Yan, Yang Yutong, Jianhua Huang, Min-Feng Wu, Xiuli Wang, Hong-wei Wang, Lei Shi","doi":"10.1002/tbio.202200005","DOIUrl":"https://doi.org/10.1002/tbio.202200005","url":null,"abstract":"Keratoacanthoma‐like squamous cell carcinoma (KA‐like SCC) is a malignant classification of KA. We report here a case of surgical combined with 5‐aminolevulinic acid‐photodynamic therapy (ALA‐PDT) to treat KA‐like SCC in an elderly male with successful tumor removal. The tumor resection was performed before ALA‐PDT. One week later, the lesion site was further treated with 20% ALA for 3 h when it was unknown whether the tumor was resected entirely or not. The irradiation was performed with a 633 nm light‐emitting diode lamp at 100 mW/cm2 for 200 J/cm2 after wiping off the ALA cream. Two sessions of ALA‐PDT were performed at a 2 weeks interval. One month after ALA‐PDT, the surgical trace of the lesion was found to have disappeared entirely, with a little scab, and the cancer did not recur. After 1 year of follow‐up, there was no recurrence. The combination with surgery and ALA‐PDT may provide a new idea for the treatment of KA‐like SCC for a wide range of patients.","PeriodicalId":75242,"journal":{"name":"Translational biophotonics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50911516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}