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Zotov AK, Pushkarev AV, Alekseeva AI, Zaytsev KI, Ryabikin SS, Tsiganov DI, Zhidkov DA, Burkov IA, Kurlov VN, Dolganova IN. Optical Sensing of Tissue Freezing Depth by Sapphire Cryo-Applicator and Steady-State Diffuse Reflectance Analysis. SENSORS (BASEL, SWITZERLAND) 2024; 24:3655. [PMID: 38894444 PMCID: PMC11175356 DOI: 10.3390/s24113655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/31/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024]
Abstract
This work describes a sapphire cryo-applicator with the ability to sense tissue freezing depth during cryosurgery by illumination of tissue and analyzing diffuse optical signals in a steady-state regime. The applicator was manufactured by the crystal growth technique and has several spatially resolved internal channels for accommodating optical fibers. The method of reconstructing freezing depth proposed in this work requires one illumination and two detection channels. The analysis of the detected intensities yields the estimation of the time evolution of the effective attenuation coefficient, which is compared with the theoretically calculated values obtained for a number of combinations of tissue parameters. The experimental test of the proposed applicator and approach for freezing depth reconstruction was performed using gelatin-based tissue phantom and rat liver tissue in vivo. It revealed the ability to estimate depth up to 8 mm. The in vivo study confirmed the feasibility of the applicator to sense the freezing depth of living tissues despite the possible diversity of their optical parameters. The results justify the potential of the described design of a sapphire instrument for cryosurgery.
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Affiliation(s)
- Arsen K. Zotov
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka 142432, Russia; (A.K.Z.)
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia
| | - Aleksandr V. Pushkarev
- Bauman Moscow State Technical University, Moscow 105005, Russia
- Federal State Budgetary Educational Institution of Further Professional Education “Russian Medical Academy of Continuous Professional Education”, Ministry of Healthcare of the Russian Federation, Moscow 125993, Russia
| | - Anna I. Alekseeva
- Avtsyn Research Institute of Human Morphology, FSBSI “Petrovsky National Research Centre of Surgery”, Moscow 117418, Russia
| | - Kirill I. Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia
| | - Sergey S. Ryabikin
- Bauman Moscow State Technical University, Moscow 105005, Russia
- Federal State Budgetary Educational Institution of Further Professional Education “Russian Medical Academy of Continuous Professional Education”, Ministry of Healthcare of the Russian Federation, Moscow 125993, Russia
| | - Dmitry I. Tsiganov
- Bauman Moscow State Technical University, Moscow 105005, Russia
- Federal State Budgetary Educational Institution of Further Professional Education “Russian Medical Academy of Continuous Professional Education”, Ministry of Healthcare of the Russian Federation, Moscow 125993, Russia
| | - Dmitriy A. Zhidkov
- Bauman Moscow State Technical University, Moscow 105005, Russia
- Federal State Budgetary Educational Institution of Further Professional Education “Russian Medical Academy of Continuous Professional Education”, Ministry of Healthcare of the Russian Federation, Moscow 125993, Russia
| | - Ivan A. Burkov
- Bauman Moscow State Technical University, Moscow 105005, Russia
| | - Vladimir N. Kurlov
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka 142432, Russia; (A.K.Z.)
| | - Irina N. Dolganova
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka 142432, Russia; (A.K.Z.)
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Dolganova IN, Zotov AK, Safonova LP, Aleksandrova PV, Reshetov IV, Zaytsev KI, Tuchin VV, Kurlov VN. Feasibility test of a sapphire cryoprobe with optical monitoring of tissue freezing. JOURNAL OF BIOPHOTONICS 2023; 16:e202200288. [PMID: 36510652 DOI: 10.1002/jbio.202200288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
This article describes a sapphire cryoprobe as a promising solution to the significant problem of modern cryosurgery that is the monitoring of tissue freezing. This probe consists of a sapphire rod manufactured by the edge-defined film-fed growth technique from Al2 O3 melt and optical fibers accommodated inside the rod and connected to the source and the detector. The probe's design enables detection of spatially resolved diffuse reflected intensities of tissue optical response, which are used for the estimation of tissue freezing depth. The current type of the 12.5-mm diameter sapphire probe cooled down by the liquid nitrogen assumes a superficial cryoablation. The experimental test made by using a gelatin-intralipid tissue phantom shows the feasibility of such concept, revealing the capabilities of monitoring the freezing depth up to 10 mm by the particular instrumentation realization of the probe. This justifies a potential of sapphire-based instruments aided by optical diagnosis in modern cryosurgery.
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Affiliation(s)
- Irina N Dolganova
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | - Arsen K Zotov
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | | | - Polina V Aleksandrova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Igor V Reshetov
- Institute for Cluster Oncology, Sechenov University, Moscow, Russia
| | - Kirill I Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Valery V Tuchin
- Science Medical Center, Saratov State University, Saratov, Russia
- Institute of Precision Mechanics and Control, FRC "Saratov Scientific Centre of the Russian Academy of Sciences", Saratov, Russia
- Tomsk State University, Tomsk, Russia
| | - Vladimir N Kurlov
- Osipyan Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
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Zhang C, Zhu L, Tang S, Wang J, Li Y, Chen X, Bian C, Liu D, Ao G, Luo T. Feasibility and safety of trans-biliary cryoablation: Preclinical evaluation of a novel flexible cryoprobe. Cryobiology 2022:S0011-2240(22)00354-6. [PMID: 36414042 DOI: 10.1016/j.cryobiol.2022.11.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
Cryoablation, as a well-characterized technology, has multifarious clinical applications in solid malignancy. However, trans-biliary cryoablation for malignant biliary obstruction has not been reported yet. Thus, this study aimed to determine the efficacy and safety of trans-biliary cryoablation with a novel CO2 gas-based flexible cryoprobe in standardized preclinical settings. For fresh porcine liver ex vivo, the freezing efficacy of cryoablation was evaluated by using fresh porcine liver. The real-time CO2 flow rate, freezing temperature and freezing range were examined and the frozen appearance was visualized. In vivo study, acute and chronical effects were investigated by using the models of canine bile duct. Histopathology and laboratory examination were performed. The lowest temperature that the electrode could deliver to the tissue was -60.7 °C. At 60s after freezing, the tissue temperature dropped to -22.6 °C and -4.3 °C at 0.1 and 0.2 cm from the electrode center, respectively. The frozen size was greater in liver tissue ex vivo than that in bile duct tissue in vivo. No biliary hemorrhage, perforation, stricture, obstruction, and adjacent organ injury were observed. With histopathologic examination, acute intercellular vacuoles were observed in the lamina propria adjacent to the lumen. Chronic changes, including uneven coagulative necrosis, fibro-proliferation, inflammatory infiltration and connective tissue thickening were observed in the lamina propria of the all biliary samples. The results demonstrated CO2 gas-based trans-biliary cryoablation is safe and efficacious. These findings may provide a potential new modality for primary malignant biliary obstruction and malignant obstruction within a biliary stent and contribute to cryoablation of clinical practice.
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Affiliation(s)
- Chao Zhang
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Linzhong Zhu
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Shousheng Tang
- CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100080, 100091, PR China
| | - Jukun Wang
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Yu Li
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Xin Chen
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Chunjing Bian
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Dongbin Liu
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Guokun Ao
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China
| | - Tao Luo
- Department of General Surgery, Xuanwu Hospital of Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing, 100053, PR China.
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Zotov AK, Gavdush AA, Katyba GM, Safonova LP, Chernomyrdin NV, Dolganova IN. In situ terahertz monitoring of an ice ball formation during tissue cryosurgery: a feasibility test. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-200372SSR. [PMID: 33506657 PMCID: PMC7839928 DOI: 10.1117/1.jbo.26.4.043003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/07/2021] [Indexed: 05/03/2023]
Abstract
SIGNIFICANCE Uncontrolled cryoablation of tissues is a strong reason limiting the wide application of cryosurgery and cryotherapy due to the certain risks of unpredicted damaging of healthy tissues. The existing guiding techniques are unable to be applied in situ or provide insufficient spatial resolution. Terahertz (THz) pulsed spectroscopy (TPS) based on sensitivity of THz time-domain signal to changes of tissue properties caused by freezing could form the basis of an instrument for observation of the ice ball formation. AIM The ability of TPS for in situ monitoring of tissue freezing depth is studied experimentally. APPROACH A THz pulsed spectrometer operated in reflection mode and equipped with a cooled sample holder and ex vivo samples of bovine visceral adipose tissue is applied. Signal spectrograms are used to analyze the changes of THz time-domain signals caused by the interface between frozen and unfrozen tissue parts. RESULTS Experimental observation of TPS signals reflected from freezing tissue demonstrates the feasibility of TPS to detect ice ball formation up to 657-μm depth. CONCLUSIONS TPS could become the promising instrument for in situ control of cryoablation, enabling observation of the freezing front propagation, which could find applications in various fields of oncology, regenerative medicine, and THz biophotonics.
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Affiliation(s)
- Arsen K. Zotov
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
| | - Arsenii A. Gavdush
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Gleb M. Katyba
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
- Bauman Moscow State Technical University, Moscow, Russia
| | | | - Nikita V. Chernomyrdin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
- Bauman Moscow State Technical University, Moscow, Russia
- Sechenov First Moscow State Medical University (Sechenov University), Institute for Regenerative Medicine, Moscow, Russia
| | - Irina N. Dolganova
- Institute of Solid State Physics of the Russian Academy of Sciences, Chernogolovka, Russia
- Bauman Moscow State Technical University, Moscow, Russia
- Sechenov First Moscow State Medical University (Sechenov University), Institute for Regenerative Medicine, Moscow, Russia
- Address all correpsondence to Irina N. Dolganova,
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Wang C, Yang X, Fan Q, Yuan J, Li Y, Wang Y. Feasibility and safety of cryoablation on the porcine ureter using a new balloon cryoprobe. Cryobiology 2020; 96:130-136. [PMID: 32707123 DOI: 10.1016/j.cryobiol.2020.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/16/2020] [Accepted: 07/16/2020] [Indexed: 11/30/2022]
Abstract
Cryoablation, as a well-characterized technology, has multifarious clinical applications. But few are reported on ureteral endometriosis. Thus, we examined the feasibility and safety of cryotherapy with a novel balloon cryoprobe on ureter in a live porcine model. During the freezing and thawing cycle, temperature was recorded in different parts of the ureter in real-time. Two-minute cryoablation could induce necrosis within range in 1 cm diameter on serosa layer. The temperature respectively dropped to -136.5 °C, -96.1 °C and -17.5 °C at the cryotherapy center, 1 cm and 1.5 cm from center on serosal side. The ureters were harvested immediately, 2 weeks or 3 months after cryotherapy. No perforation, stricture, adhesions, or hydronephrosis was observed. Histopathologic representations of ureters after cryoablation indicated that full thickness necroses of ureters were seen in all samples. The results demonstrated ureteral cryoablation using a novel balloon probe was feasible, safe, and effective. These findings provided us reference before cryoablation could be applied in clinical practice in treating ureteral endometriosis.
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Affiliation(s)
- Chao Wang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Xiaoming Yang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Qiong Fan
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Jiangjing Yuan
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yuhong Li
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yudong Wang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Municipal Key Clinical Specialty of Gynecologic Oncology, Shanghai, 200030, China; Shanghai Key Laboratory of Embryo Original Diseases Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
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