Magnetic resonance imaging in the evaluation of (deep infiltrating) endometriosis: The value of diffusion‐weighted imaging

Busard, M.P.H.; Mijatovic, Velja; Kuijk, Cornelis van; Bos, Indra C. Pieters-van den; Hompes, Peter G.A.; Waesberghe, J.H.T.M. van

doi:10.1002/jmri.22139

Cited by 37 publications

(38 citation statements)

References 30 publications

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“…The signal intensity characteristics of endometrioma on conventional MR sequences as high signal intensity on T1-weighted and T2 shading are usually sufficient for the diagnosis, with specificity greater than 90% (Togashi et al, 1991;Siegelman and Oliver, 2012). Based on the results of a study by Busard et al, endometriomas demonstrate restricted diffusion and low ADC values (Busard et al, 2010). In the present study, initially, endometriomas were not excluded, because we wanted the results be applicable to all of the cases encountered in the clinic.…”

Section: 3407 Differentiation Of Benign From Malignant Adnexal Massementioning

confidence: 94%

Differentiation of Benign from Malignant Adnexal Masses by Functional 3 Tesla MRI Techniques: Diffusion-Weighted Imaging and Time-Intensity Curves of Dynamic Contrast-Enhanced MRI

Malek

Pourashraf²,

Mousavi³

et al. 2015

Asian Pacific Journal of Cancer Prevention

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Section: 3407 Differentiation Of Benign From Malignant Adnexal Massementioning

confidence: 94%

Differentiation of Benign from Malignant Adnexal Masses by Functional 3 Tesla MRI Techniques: Diffusion-Weighted Imaging and Time-Intensity Curves of Dynamic Contrast-Enhanced MRI

Malek

Pourashraf²,

Mousavi³

et al. 2015

Asian Pacific Journal of Cancer Prevention

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“…По данным А. М. Хачатрян и соавт., УЗИ оказа-лось информативным лишь у 4 из 14 больных [5], при этом распознать этиологию узла (эндометриоз или рак) не представлялось возможным. МРТ -зна-чительно более информативный метод диагностики эндометриоза МП [34][35][36][37][38]. Информативность МРТ при эндометриозе МП, по данным А. М. Хачатрян и соавт., составила 82 %, в том числе у 6 больных уда-лось диагностировать эндометриоидные инфильтраты в пузырной стенке (при размере их свыше 1 см) [5].…”

Section: анализ данных литературы и обсуждениеunclassified

“…Информативность МРТ при эндометриозе МП, по данным А. М. Хачатрян и соавт., составила 82 %, в том числе у 6 больных уда-лось диагностировать эндометриоидные инфильтраты в пузырной стенке (при размере их свыше 1 см) [5]. По мнению ряда авторов, для ранней диагностики во-влеченности в процесс мочевых путей, необходимо всем больным генитальным эндометриозом включать в план исследования МРТ малого таза [5,35]. Хорошо выявляя опухолевидные инфильтраты в стенке МП, МРТ, тем не менее, не позволяет надежно дифферен-цировать природу этого образования (эндометриоз или рак) [34,35,38].…”

Section: анализ данных литературы и обсуждениеunclassified

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Bladder endometriosis mimicking urinary bladder carcinoma: A review of literature and a description of 3 own cases

Давидов¹,

Пономарева²

2016

Cancer Urology

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Key words : bladder, cancer, endometriosis, prevalence, etiology, pathogenesis, clinical presentation, diagnosis, differential diagnosis, cystoscopy, magnetic resonance imaging, surgical treatment Введение Эндометриоз является распространенным забо-леванием, встречается у 10-25 % женщин [1, 2]. Эн-дометриоз -разрастание ткани, функционально и морфологически подобной нормальному эндоме-трию, с повышенным локальным образованием эстрогенов. Сопутствующий воспалительный про-цесс, иммунологическая дизрегуляция, ингибирова-ние апоптоза, активация ангиогенеза -патогенети-ческие факторы, способствующие выживанию и росту эндометриоидных имплантов [2][3][4]. В последние годы экстрагенитальный эндометриоз привлекает повы-шенное внимание онкологов всего мира, так как эн-дометриоидные импланты, располагаясь в прямой и ободочной кишке, стенке мочевого пузыря (МП) и мочеточника, симулируют раковые опухоли этих органов [4][5][6].Эндометриоз МП, встречаясь относительно редко, недостаточно известен и изучен онкоурологами и уро-логами. Согласно данным R. L. Fein и B. F. Horton [7], первый случай эндометриоза МП наблюдал Judd в 1921 г. К 1960-м годам в мировой литературе было описано лишь 77 наблюдений [8]. В конце XX в. пре-обладали описания единичных казуистических случа-ев [9][10][11][12][13][14][15][16]. К 2015 г. в мировой литературе мы нашли описание 384 достоверных случаев эндометриоза МП.Некоторые авторы [17][18][19][20][21][22][23][24], полагая, что далеко не все случаи заболевания попадают на страницы пе-чати, считают, что частота поражения МП эндометри-озом значительно больше и составляет 1-12 % всех

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“…No significant difference was found in the mean and lowest ADC values of malignant and benign lesions, and it was concluded that DWI of ovarian lesions and the ADC values of the solid components are not useful for differentiating benign from malignant ovarian lesions. The reported ADC values in malignant ovarian tumors ranged between 0.88×10 −3 mm 2 /s and 2.28×10 −3 mm 2 /s (135)(136)(137)(138)(139)(140)(141). This variability in ADC values is probably due to tumor type, imaging parameters, b value combination, and region of interest placement (whether or not the solid part was included).…”

Section: Female Pelvis Applicationsmentioning

confidence: 99%

Diffusion weighted MRI for detecting and monitoring cancer: a review of current applications in body imaging

Türkbey

Aras

Karabulut

et al. 2011

Diagn Interv Radiol

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Imaging is used to detect, characterize, and monitor cancer. Recently, diffusion-weighted magnetic resonance imaging (DWI) has become a useful adjunct for assessing tumors with magnetic resonance imaging (MRI). DWI involves the acquisition of a magnetic resonance signal related to random thermal motion (Brownian motion) or the "diffusion" of water protons in tissue. The signal obtained with DWI is a measure of the net displacement of water molecules, e.g., the water path length in the extracellular, intracellular and intravascular spaces. This motion is largely random and can be reduced by structural barriers, such as cell membranes and collagen. Restricted diffusion in biological tissues is inversely proportional to tissue cellularity and the integrity of cell membranes, and it can be quantified with apparent diffusion coefficient (ADC) measurements (1). Depending on the microarchitecture, either restricted or increased diffusion can occur in malignant tumors. For instance, diffusion is restricted in cellular portions of the tumor, but it may be increased in necrotic portions (2, 3). Other causes of enhanced diffusion include increased water content arising from intratumoral edema and cystic tumor components (4-6).Although initially used to evaluate neurological diseases, the applications of DWI have been extended to oncologic imaging throughout the body made possible by improvements in MRI hardware and new sequences. The use of DWI as a complement to conventional MRI methods has led to improvements in the detection and characterization of tumors, treatment response monitoring, and detection of recurrence in oncology patients. Basic concepts of DWIIn 1965, Stejskal and Tanner (7) proposed the application of a symmetric pair of additional gradients on either side of the 180˚ refocusing radiofrequency pulse. The Stejskal-Tanner sequence is still the basis of modern DWI. For static water molecules, the phasing effect caused by the first gradient will be reversed by the second gradient, leading to no signal loss; however, this phasing effect will not be completely reversed if the water molecules are not stationary, which results in the observed well-known diffusion signal decay. The amount of diffusion weighting is determined by the b value, which describes the amplitude, duration of the applied gradient, and time interval between the two diffusion gradients (4). The degree of signal attenuation from water molecules is cor- ABSTRACT Diffusion-weighted magnetic resonance imaging (MRI), which involves the acquisition of a magnetic resonance signal related to the Brownian motion of water protons in tissue, has become a useful technique for assessing tumors. In this article, we review the basic concepts, imaging strategies, and body applications of diffusion-weighted MRI in detecting and monitoring cancer.

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Magnetic resonance imaging in the evaluation of (deep infiltrating) endometriosis: The value of diffusion‐weighted imaging

Cited by 37 publications

References 30 publications

Differentiation of Benign from Malignant Adnexal Masses by Functional 3 Tesla MRI Techniques: Diffusion-Weighted Imaging and Time-Intensity Curves of Dynamic Contrast-Enhanced MRI

Differentiation of Benign from Malignant Adnexal Masses by Functional 3 Tesla MRI Techniques: Diffusion-Weighted Imaging and Time-Intensity Curves of Dynamic Contrast-Enhanced MRI

Bladder endometriosis mimicking urinary bladder carcinoma: A review of literature and a description of 3 own cases

Diffusion weighted MRI for detecting and monitoring cancer: a review of current applications in body imaging

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