Improving tissue characterization, differentiation and diagnosis in gynecology with the narrow‑band imaging technique: A systematic review

Peitsidis, Panagiotis; Vrachnis, Nikolaos; Sifakis, Stavros; Katsetos, Christos; Tsikouras, Panagiotis; Antonakopoulos, Nikolaos; Alexopoulos, Evaggelos; Kalmantis, K

doi:10.3892/etm.2021.10958

Cited by 2 publications

(2 citation statements)

References 45 publications

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“…[8][9][10] In particular, with narrow-band imaging, the distribution of capillaries was more clearly visible, [11,12] which improves the accuracy of hysteroscopy diagnosis, [13,14] and it appears to identify endometrial cancer earlier. [15,16] Studies on esophageal gastroscopy in this regard have been very mature, and the esophageal intraepithelial papillary capillary loops have been classified. Inoue summarized the abnormal shapes of capillary loop appear at 4 typical changes as follows: dilation, tortuous weaving, irregular caliber, and form variation.…”

Section: Discussionmentioning

confidence: 99%

Rare case of endometrial vascular dystrophy: Three case reports

et al. 2023

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Rationale: Endometrial vascular dystrophy refers to abnormal vessels that are very tortuous, dilated, and sometimes thrombosed. Endometrial vascular dystrophy is rare under hysteroscopy. Patient: All three patients had a history of abnormal uterine bleeding. The duration of vaginal bleeding ranged from 1 month to 2 years. There was no history of unusual diseases, alcohol or drug abuse, or genetic history. Diagnoses: Endometrial vascular dystrophy. Intervention: Three patients underwent hysteroscopy and curettage under intravenous general anesthesia. Pathological examination showed secretory endometrium, with one case coexisting with endometrial polyps. Outcomes: No recurrence was found during postoperative follow-up at 12 months. Lessons: Endometrial vascular dystrophy is a rare hysteroscopy phenomenon shown in the secretory endometrium. We believe that it was a capillary loop with different manifestations.

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Section: Discussionmentioning

confidence: 99%

Rare case of endometrial vascular dystrophy: Three case reports

et al. 2023

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“…In addition, it would obviate the need for an exogenous contrast agent that would require FDA approval and possibly additional time and/or procedures for contrast delivery and optimal uptake 3 – 5 . However, in principle the contrast of label-free images tends to be weak and requires more careful processing to extract signals that provide high levels of diagnostic accuracy 6 , 7 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a polarization-enhanced laparoscopy prototype for improved intra-operative visualization of peritoneal metastases

Schnelldorfer,

Gnanatheepam,

Trout

et al. 2023

Sci Rep

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Despite careful staging, the accuracy for preoperative detection of small distant metastases remains poor, creating a clinical need for enhanced operative staging to detect occult peritoneal metastases. This study evaluates a polarization-enhanced laparoscopy (PEL) prototype and assesses its potential for label-free contrast enhancement of peritoneal metastases. This is a first-in-human feasibility study, including 10 adult patients who underwent standard staging laparoscopy (SSL) for gastrointestinal malignancy along with PEL. Image frames of all detectable peritoneal lesions underwent analysis. Using Monte Carlo simulations, contrast enhancement based on the color dependence of PEL (mPEL) was assessed. The prototype performed safely, yet with limitations in illumination, fogging of the distal window, and image co-registration. Sixty-five lesions (56 presumed benign and 9 presumed malignant) from 3 patients represented the study sample. While most lesions were visible under human examination of both SSL and PEL videos, more lesions were apparent using SSL. However, this was likely due to reduced illumination under PEL. When controlling for such effects through direct comparisons of integrated (WLL) vs differential (PEL) polarization laparoscopy images, we found that PEL imaging yielded an over twofold Weber contrast enhancement over WLL. Further, enhancements in the discrimination between malignant and benign lesions were achieved by exploiting the PEL color contrast to enhance sensitivity to tissue scattering, influenced primarily by collagen. In conclusion, PEL appears safe and easy to integrate into the operating room. When controlling for the degree of illumination, image analysis suggested a potential for mPEL to provide improved visualization of metastases.

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Improving tissue characterization, differentiation and diagnosis in gynecology with the narrow‑band imaging technique: A systematic review

Cited by 2 publications

References 45 publications

Rare case of endometrial vascular dystrophy: Three case reports

Rare case of endometrial vascular dystrophy: Three case reports

Evaluation of a polarization-enhanced laparoscopy prototype for improved intra-operative visualization of peritoneal metastases

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