Abstract：
:This study aims to evaluate whether optical coherence tomography (OCT) using both the surface and the endoluminal technique is feasible to investigate the locations and degree of encrustation process in clinically used ureteral stents. After removal from patients, 14 polyurethane JJ stents were investigated. A fresh JJ served as a control. The external surfaces were examined using an endoscopic surface OCT whereas the intraluminal surfaces were investigated by an endoluminal radial OCT device. The focus was on detection of encrustation or crystalline sedimentation. In 12 female and two male patients, the median indwelling time of the ureteral catheter was 100 days (range, 19-217). Using the endoluminal OCT, the size and grade of intraluminal encrustation could be expressed as a percentage relating to the open lumen of the reference stent. The maximum encrustation observed resulted in a remaining unrestricted lumen of 15-35 % compared to the reference. The luminal reduction caused by encrustation was significantly higher at the proximal end of the ureteral stent as compared to its distal part. The extraluminal OCT investigations facilitated the characterization of extraluminal encrustation. OCT techniques were feasible and facilitated the detection of encrustation of double pigtail catheters on both the extra and intra luminal surface. Quantitative expression of the degree of intraluminal encrustation could be achieved, with the most dense and thickened occurrence of intraluminal incrustation in the upper curl of the JJ stent.
journal_name
Lasers Med Scijournal_title
Lasers in medical scienceauthors
Bader MJ,Zilinberg K,Weidlich P,Waidelich R,Püls M,Gratzke C,Stief CG,Stepp H,Sroka Rdoi
10.1007/s10103-012-1177-1subject
Has Abstractpub_date
2013-05-01 00:00:00pages
919-24issue
3eissn
0268-8921issn
1435-604Xjournal_volume
28pub_type
杂志文章abstract：:Resistant non-segmental vitiligo is difficult to be treated. Ablative erbium-YAG (Er:YAG) laser has been used in the treatment of vitiligo, but the ablation of entire epidermis frustrated the compliance of patients. The purpose of this study is to investigate the effects of fractional Er:YAG laser followed by topical ...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-017-2282-y
更新日期：2017-09-01 00:00:00
abstract：:Dermatosis papulosa nigra (DPN) is a common condition of pigmented skin. Whilst lesions are benign, they may be symptomatic or cosmetically disfiguring. Ablative lasers have previously been reported as a useful therapeutic modality in DPN. We report the largest case series to date of patients with DPN ablated with the...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-1906-y
更新日期：2016-04-01 00:00:00
abstract：:Antibiotics and photodynamic therapy (PDT) are widely employed in curing acne. However, antibiotics as an effective treatment would lead to bacterial resistance and severe side effects. In this study, we aimed to develop a novel TBO hydrogel, which could prolong the retention time of photosensitizer (TBO) at the lesio...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02727-2
更新日期：2019-10-01 00:00:00
abstract：:Photodynamic therapy (PDT) is used for the prevention and treatment of non-melanoma skin cancer. Until recently, clinically approved indications have been restricted to actinic keratoses, nodular and superficial basal cell carcinoma, and, since 2006, Bowen disease. However, the range of indications has been expanding ...
journal_title：Lasers in medical science
pub_type： 杂志文章,评审
doi：10.1007/s10103-009-0716-x
更新日期：2009-11-01 00:00:00
abstract：:Methicillin-resistant Staphylococcus aureus (MRSA) is an important cause of infections in humans. Photodynamic therapy using blue light (450 nm) could possibly be used to reduce MRSA on different human tissue surfaces without killing the human cells. It could be less harmful than 300-400 nm light or common disinfectan...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02774-9
更新日期：2019-12-01 00:00:00
abstract：:Different ablation techniques have been utilized in the treatment of Barrett's esophagus (BE) to reduce the risk of degeneration. Treatment complications, risk of recurrence, and buried intestinal metaplasia (IM) are all major concerns. The effect of diode laser treatment on BE, studied in a group of patients over a l...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0836-3
更新日期：2011-03-01 00:00:00
abstract：:In this study, we compared the microleakage of composite fillings cured with halogen bulb, LED and argon ion laser (488 nm). Twenty-four extracted human molars were divided randomly in three groups. Six cavities were prepared on the coronal part of each tooth. Standard cavities (1.7 x 2 mm) were prepared. Cavities wer...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-007-0504-4
更新日期：2009-01-01 00:00:00
abstract：:Diabetes mellitus (DM) is associated with musculoskeletal damage. Investigations have indicated that healing of the surgically tenotomized Achilles tendon was considerably augmented following low-level laser therapy (LLLT) in non-diabetic, healthy animals. The aim of the present study was to evaluate the effect of LLL...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1074-7
更新日期：2013-02-01 00:00:00
abstract：:This in vitro study evaluated the role of photobiomodulation therapy (PBMT) on viability and migration of human dental pulp stem cells (hDPSCs) and its association to epigenetic mechanisms such as histone acetylation. The hDPSCs were characterized and assigned into control and PBMT groups. For the PBMT, five laser irr...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02931-0
更新日期：2020-04-01 00:00:00
abstract：:We report the results of endoscopic laser therapy on 59 patients with upper gastrointestinal vascular ectasia. After 300 sessions, complications were two nonbleeding and three bleeding ulcers, treated successfully with endoscopic therapy. After treatment, blood transfusions were abolished in 61% and reduced in 22% of ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-006-0389-7
更新日期：2006-09-01 00:00:00
abstract：:In an in vitro study, the effect of light polarization on the efficiency of 5-aminolaevulinic acid (ALA) photodynamic therapy (PDT) of basal cell carcinoma (BCC) was investigated. Three states of light polarization (non-polarized, linearly polarized, and circularly polarized) were considered. Cells were exposed to gre...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2369-5
更新日期：2018-02-01 00:00:00
abstract：:Recent studies have shown that direct laser metal sintering (DLMS) produces structures with complex geometry and consequently that allow better osteoconductive properties. The aim of this patient report was to evaluate the early bone response to DLMS implant surface retrieved from human jaws. Four experimental DLMS im...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-010-0831-8
更新日期：2011-01-01 00:00:00
abstract：INTRODUCTION:In-transit cutaneous malignant melanoma metastases remains a difficult and distressing disease. It is a sequela to the primary lesion represented by melanoma deposits between the site of excision and the draining lymph nodes. We present our experience of carbon dioxide ablation of in-transit cutaneous mali...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0580-0
更新日期：2009-05-01 00:00:00
abstract：:Photodynamic rejuvenation therapy (PDRT) is a growing field in cosmetic dermatology. In this study, different sources of light (a yellow laser, a red laser and ultraviolet A (UVA) lamps) were used to activate a second-generation photosensitiser, hypericin. Uptake of hypericin was monitored over 24 h and efficacy of PD...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-012-1115-2
更新日期：2013-02-01 00:00:00
abstract：:There is concern that the delicate fibres and cylindrical diffuser tips used for intraluminal PDT of blood vessels might break during the treatment. We have developed and tested a simple system to monitor for fibre breakage during PDT. Light from the laser is passed through a beam expander, then a beam splitter, and t...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-003-0270-x
更新日期：2003-01-01 00:00:00
abstract：:High-intensity focused ultrasound (HIFU) can be applied noninvasively to create focused zones of tissue coagulation on various skin layers. We performed a comparative study of HIFU, evaluating patterns of focused tissue coagulation and ablation upon application thereof. A tissue-mimicking (TM) phantom was prepared wit...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-015-1804-8
更新日期：2015-12-01 00:00:00
abstract：:The effects of He-Ne laser irradiation on erythrocyte hemolysis were studied. Erythrocytes are prone to be easily damaged with hemolysis under laser irradiation. It was found that the power density (PD) of laser irradiation, but not the total irradiation power, is the crucial parameter for the hemolysis. Under irradia...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-004-0320-z
更新日期：2004-01-01 00:00:00
abstract：:For better evaluation of the efficacy of low-level laser therapy in treating painful diabetic neuropathy and in protecting nerve fiber damage, we conducted a study with type 1 diabetic rats induced by streptozotocin. It is well known that diabetic peripheral neuropathy is the leading cause of pain in those individuals...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2140-3
更新日期：2017-04-01 00:00:00
abstract：:In the application of lasers in dentistry, there is a delicate balance between the benefits gained from laser treatment and the heat-related damage arising from laser irradiation. Hence, it is necessary to understand the different processes associated with the irradiation of lasers on dental materials. To obtain insig...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2251-5
更新日期：2017-08-01 00:00:00
abstract：:The aim of this in vitro study was to evaluate some parameters of dental etching when irradiated with an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser. One-hundred sound human third molars were selected and randomly distributed into ten groups (n = 10). The class V cavities of group 1 (control) w...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-008-0623-6
更新日期：2010-05-01 00:00:00
abstract：:Several studies suggest a biomodulatory influence of low-level laser irradiation in the inflammatory and reparative processes of dental tissues. The aim of this study was to investigate the stimulatory effect of 808-nm laser irradiation on root development of rat molars and also to evaluate the histological reaction o...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-011-0935-9
更新日期：2012-05-01 00:00:00
abstract：:The laser source with 3 μm/2 μm output wavelength has many application prospects in clinical medicine, photoelectric countermeasure, and scientific research measurement. An Er3+ doped ZBLAN fiber laser with output wavelength of 2 .8 μm and 1 .6 μm is experimentally studied. By setting the pump power to 5 W, a continuo...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02766-9
更新日期：2019-10-01 00:00:00
abstract：:Precise nerve localization is of major importance in both surgery and regional anesthesia. Optically based techniques can identify tissue through differences in optical properties, like absorption and scattering. The aim of this study was to evaluate the potential of optical spectroscopy (diffuse reflectance spectrosc...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-017-2433-1
更新日期：2018-04-01 00:00:00
abstract：:Use of the CO(2) laser (λ = 10.6 μm, continuous wave, defocused) is an established procedure for the treatment of premalignant lesions. Through employment of the sp-mode as well as scanners, thermal laser effects can be reduced but, on the other hand, a lesser degree of destruction of dysplastic cells could lead to an...
journal_title：Lasers in medical science
pub_type： 临床试验,杂志文章
doi：10.1007/s10103-011-0910-5
更新日期：2012-01-01 00:00:00
abstract：:The current study evaluates whether the addition of low-level laser therapy into standard conventional physical therapy in elderly with bilateral symptomatic tri-compartmental knee arthritis can successfully postpone the need for joint replacement surgery. A prospective randomized cohort study of 100 consecutive unsel...
journal_title：Lasers in medical science
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10103-015-1814-6
更新日期：2015-12-01 00:00:00
abstract：:The goal of this study was to assess the ablation, coagulation, and carbonization characteristics of the holmium:YAG (Ho:YAG) laser and thulium fiber lasers (TFL). The Ho:YAG laser (100 W av.power), the quasi-continuous (QCW) TFL (120 W av.power), and the SuperPulsed (SP) TFL (50 W av.power) were compared on a non-fro...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03189-7
更新日期：2020-11-11 00:00:00
abstract：:Neuropathic pain (NP) is caused by damage to the nervous system due to reactive oxygen spices (ROS) increase, antioxidants reduction, ATP production imbalance, and induction of apoptosis. In this investigation, we applied low-level laser 660 nm (photobiomodulation therapy) as a new strategy to modulate pain. In order ...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-016-2062-0
更新日期：2016-12-01 00:00:00
abstract：:Laser angioplasty has been evaluated for coronary applications since the early 1980s. Early complications of dissection, perforation and thermal injury led to a loss of enthusiasm for this technique. Recent advances in catheter development, including optimally spaced laser fibres, athermic 308 nm wave-length catheters...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/pl00011338
更新日期：2001-01-01 00:00:00
abstract：:The objective of this study was to describe the dynamics of water heating carried out by continuous laser radiation with wavelengths 1.47, 1.55, and 1.94 μm with different types of fibers used for endovenous laser coagulation. The study was conducted in water using high-speed surveying of the heating process through t...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-020-03184-y
更新日期：2020-11-07 00:00:00
abstract：:The post-stimulation response of neural activities plays an important role to evaluate the effectiveness and safety of neural modulation techniques. Previous studies have established the capability of infrared neural modulation (INM) on neural firing regulation in the central nervous system (CNS); however, the dynamic...
journal_title：Lasers in medical science
pub_type： 杂志文章
doi：10.1007/s10103-019-02826-0
更新日期：2020-03-01 00:00:00
