Marking and Identifying Colon Lesions: Tattoos, Clips, and Radiology in Imaging the Colon

Jiménez

et al. 2012

Rev. esp. enferm. dig.

Introduction: accurate preoperative localization of colorectal cancer (CRC) is very important, with a wide range of published error rates.Aims: to determine accuracy of endoscopic localization of CRC in comparison with preoperative computed tomography (CT). To analyse variables that could be associated with a wrong endoscopic localization.Patients and methods: endoscopic and CT localization of a series of CRC without previous surgery were reviewed. We studied the concordance between endoscopic and radiologic localization against operative findings comparing accuracy of endoscopy and CT. We analysed the frequency of wrong endoscopic diagnoses with regard to a series of patient, endoscopy and tumor variables.Results: two hundred thirty seven CRC in 223 patients were studied. Concordance with surgical localization was: colonoscopy = 0.87 and CT = 0.69. Endoscopic localization accuracy was: 91.1%; CT: 76.2%: p = 0.00001; OR = 3.22 (1.82-5.72). Obstructive cancer presented a higher rate of wrong localization: 18 vs. 5.7% in non-obstructive tumors (p = 0.0034; OR = 3.65 (1.35-9.96). Endoscopic localization mistakes varied depending on tumor location, being more frequent in descending colon: 36.3%, p = 0.014; p = 0.007;.Conclusions: endoscopic accuracy for CRC localization was very high and significantly better than CT accuracy. Obstructive tumor and those located in the descending colon or cecum were associated with a significant increase of the error risk of CRC endoscopic localization.

Section: Discussionmentioning

confidence: 99%

Endoscopic localization of colorectal cancer: Study of its accuracy and possible error factors

Jiménez

et al. 2012

Rev. esp. enferm. dig.

“…Because of the large number of different materials that may be used with in vivo EPR and the time and effort needed to obtain clearance of new compounds, with one or two exceptions, the initial clinical applications will use methods that avoid direct exposure of human subjects to these materials. The exceptions are the use of India ink for oximetry, because this material already is used in human subjects, [85][86][87][88] and the dithiocarbamates used to measure nitric oxide, because these drugs are also already in use in human subjects. 89 …”

Section: Challenges and Feasible Solutions For The Implementation Of mentioning

confidence: 99%

Clinical applications of EPR: overview and perspectives

et al. 2004

The development and use of in vivo techniques for strictly experimental applications in animals has been very successful, and these results now have made possible some very attractive potential clinical applications. The area with the most obvious immediate, effective and widespread clinical use is oximetry, where EPR almost uniquely can make repeated and accurate measurements of pO 2 in tissues. Such measurements can provide clinicians with information that can impact directly on diagnosis and therapy, especially for oncology, peripheral vascular disease and wound healing. The other area of immediate and timely importance is the unique ability of in vivo EPR to measure clinically significant exposures to ionizing radiation 'after-the-fact', such as may occur due to accidents, terrorism or nuclear war. There are a number of other capabilities of in vivo EPR that also potentially could become extensively used in human subjects. In pharmacology the unique capabilities of in vivo EPR to detect and characterize free radicals could be applied to measure free radical intermediates from drugs and oxidative process. A closely related area of potential widespread applications is the use of EPR to measure nitric oxide. These often unique capabilities, combined with the sensitivity of EPR spectra to the immediate environment (e.g. pH, molecular motion, charge) have already resulted in some very productive applications in animals and these are likely to expand substantially in the near future. They should provide a continually developing base for extending clinical uses of in vivo EPR. The challenges for achieving full implementation include adapting the spectrometer for safe and comfortable measurements in human subjects, achieving sufficient sensitivity for measurements at the sites of the pathophysiological processes that are being measured, and establishing a consensus on the clinical value of the measurements.

Khir. Z. im. N.I. Pirogova

“…Его широко используют в западной колоректальной и эндоскопической хи-рургии [18][19][20][21]. Эндоскопическая татуировка пред-назначена для облегчения локализации люминаль-ной патологии во время хирургической операции или повторного эндоскопического обследования.…”

Section: Endoscopic Tattooing Of Colorectal Neoplasms and Laparoscopiunclassified

Endoscopic tattooing of colorectal neoplasms and laparoscopic surgery: technical aspects and recommendations

Bashankaev

Shishin

Веселов

et al. 2017

Accurate mapping of colorectal neoplasms is needed in many clinical situations. Intraoperative mapping of small lesions previously detected by endoscopy is often challenging, especially during laparoscopic surgery. Tumor location assessed during colonoscopy may be inaccurate because of limitations of the procedure. Small flat neoplasms with signs of invasiveness, which are hard to detect by palpation, hold a special place. The same situation is observed for nonradical endoscopic resection of malignant polyps or early cancer, when visual examination shows that the tumor masses have been completely resected but histological examination reveals the positive lateral or horizontal resection margin. Endoscopic tattooing is an effective, safe, and economically sound method to mark intraluminal colorectal neoplasms, which allows one to perform minimally invasive surgeries without using additional operating room resources.