Thermography in screening for breast cancer.

Williams, K. Lloyd; Phillips, B H; Jones, P A; Beaman, S A; Fleming, Pádraic

doi:10.1136/jech.44.2.112

Cited by 21 publications

(7 citation statements)

References 3 publications

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“…The authors of previous related research used IR thermography in medical applications for fever screening of potentially infected patients in airports [25], breast cancer detection [26,27], diabetes neuropathy [28], peripheral vascular disorders detection [29], and in psoriasis arthritis [30]. In recent studies, the role of thermography examination of hand joints for diagnosis and prediction of disease progression was evaluated [31].…”

Section: Introductionmentioning

confidence: 99%

Infrared Thermography Sensor for Disease Activity Detection in Rheumatoid Arthritis Patients

Pauk

Wasilewska

Ihnatouski

2019

Sensors

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A recent review of thermography studies in rheumatoid arthritis shows limited data about disease activity and mostly focuses on differences between the thermography of rheumatoid arthritis patients and typical subjects. A retrospective study compared patients with high disease activity (n = 50), moderate disease activity (n = 16), and healthy participants (n = 42), taking into account demographic, clinical, laboratory, and thermography parameters. We applied an infrared thermography sensor and a fingers examination protocol. Outcomes included the mean temperature of five fingers of a hand: In static, post-cooling, post-rewarming, the total change in mean temperature of fingers due to cold provocation, the total change in mean temperature of fingers due to rewarming, the area under the cooling curve, the area under the heating curve, the difference between the area under the rewarming and the cooling curve, and temperature intensity distribution maps. For patients with high disease activity, a lower area under the heating curve and a lower difference between the area under the rewarming curve and the cooling curve were observed, as well as a smaller total change in mean temperature due to rewarming, compared to patients with moderate disease activity (p < 0.05). Our study findings could be helpful in patients with an equivocal clinical examination.

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Section: Introductionmentioning

confidence: 99%

Infrared Thermography Sensor for Disease Activity Detection in Rheumatoid Arthritis Patients

Pauk

Wasilewska

Ihnatouski

2019

Sensors

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“…It has been shown that the relationship between changes in blood flow using venous occlusion plethysmography and skin temperature is non linear [20], A similar relationship was shown using LDF and thermography to measure hand skin blood flow [16]. Therefore, the value of thermography remains equivocal in breast cancer diagnosis, and the results are variable and inaccurate [21], Since the sensitivity is less than 50%, it is no longer being advocated as a routine screening method [22].…”

Section: Discussionmentioning

confidence: 99%

Laser Doppler Perfusion Imaging – A New Technique for Measuring Breast Skin Blood Flow

Seifalian¹,

Chaloupka²,

Parbhoo³

1995

Int J Microcirc

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Future detection of breast cancer will probably be based on tissue function such as altered vascularity and blood flow. Assessment of tumour blood flow and its pattern may be significant for prognostic prediction, and early evaluation of treatment response. An ideal method of assessment of perfusion would therefore measure a wide area of the breast without the necessity for surface contact. A possible method for achieving this ideal is the recent development of a laser Doppler imager (LDI) that creates an image of tissue perfusion. The method is based on the recording of Doppler shift caused by movements of red blood cells in the backscattered light of a laser beam that successively scans a certain tissue area. This method reflects the vascularity of overlaying skin. We have applied this technique to 101 patients, 47 normal, 25 benign, and 29 carcinoma. Our findings were correlated with breast imaging and tissue diagnosis. The mean blood flow in ‘normal’ patients was 299 ± 155 and 311 ± 157 flux ( ± SD) for right and left breast, in patients with benign breast change it was 482 ± 209 flux and in patients with carcinoma it was 711 ± 280 flux. Patients with benign breast change have higher skin blood flow than symptomatic normal patients but the highest levels have been recorded in patients with breast cancer. We believe that LDI may have an important role in improving our understanding of the physiology of the normal breast and may provide a practical method of monitoring breast skin blood flow changes in clinical situations.

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“…This technique is also applicable for clinical purposes in various medical conditions, such as rheumatic diseases, diabetes, 6,7 vascular, oncologic, and dermatologic pathologies, as well as for the determination of tissue viability. [8][9][10] It can also be used for non-contact evaluation of ocular surface temperature (OST), which has been shown to indirectly represent ocular hemodynamics. [11][12][13][14] OST was first used in ophthalmology by Mapstone, [15][16][17][18] who applied ocular thermography to investigate thermal patterns in both normal and pathological conditions.…”

Section: Introductionmentioning

confidence: 99%

Ocular surface temperature differences in glaucoma

Leshno

Stern

Barkana

et al. 2021

European Journal of Ophthalmology

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Purpose: Accumulating evidence suggests that neuroinflammation and immune response are part of the sequence of pathological events leading to optic nerve damage in glaucoma. Changes in tissue temperature due to inflammation can be measured by thermographic imaging. We investigated the ocular surface temperature (OST) profile of glaucomatous eyes to better understand the pathophysiology of these conditions. Methods: Subjects diagnosed with glaucoma (primary open angle glaucoma [POAG] or pseudo exfoliation glaucoma [PXFG]) treated at the Sam Rothberg Glaucoma Center (11/2019–11/2020.) were recruited. Healthy subjects with no ocular disease served as controls. The Therm-App thermal imaging camera was used for OST acquisition. Room and body temperatures were recorded, and the mean temperatures of the medial cantus, lateral cantus, and cornea were calculated with image processing software. Results: Thermographic images were obtained from 52 subjects (52 eyes: 25 POAG and 27 PXFG) and 66 controls (66 eyes). Eyes with glaucoma had a significantly higher OST compared to controls (mean 0.9 ± 0.3°C, p < 0.005). The difference between the two groups remained significant after adjustment for age, sex, intraocular pressure (IOP) and room and body temperatures. Lens status and topical IOP-lowering medication did not significantly affect OST. A subgroup analysis revealed that the OST was higher among eyes with POAG compared to eyes with PXFG, but not significantly. Conclusions: Differences in the OST between glaucomatous and normal eyes strengthens current thinking that inflammation affects the pathophysiology of glaucoma. Longitudinal studies are warranted to establish the prognostic value of thermographic evaluations in these patients.

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Thermography in screening for breast cancer.

Cited by 21 publications

References 3 publications

Infrared Thermography Sensor for Disease Activity Detection in Rheumatoid Arthritis Patients

Infrared Thermography Sensor for Disease Activity Detection in Rheumatoid Arthritis Patients

Laser Doppler Perfusion Imaging – A New Technique for Measuring Breast Skin Blood Flow

Ocular surface temperature differences in glaucoma

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