scholarly journals Adnexal masses characterized on 3 tesla magnetic resonance imaging – added value of diffusion techniques

2020 ◽  
Vol 54 (4) ◽  
pp. 419-428
Author(s):  
Julia Dimova ◽  
Dora Zlatareva ◽  
Rumiana Bakalova ◽  
Ichio Aoki ◽  
George Hadjidekov
Keyword(s):  
Contrast Enhancement ◽  
Malignant Tumors ◽  
Added Value ◽  
3 Tesla ◽  
Preoperative Management ◽  
Adnexal Masses ◽  
3T Mri ◽  
Different Types ◽  
3 Tesla Mri ◽  
The Masses

AbstractBackgroundTo assess different types of adnexal masses as identified by 3T MRI and to discuss the added value of diffusion techniques compared with conventional sequences.Patients and methods174 women age between 13 and 87 underwent an MRI examination of the pelvis for a period of three years. Patients were examined in two radiology departments – 135 of them on 3 Tesla MRI Siemens Verio and 39 on 3 Tesla MRI Philips Ingenia. At least one adnexal mass was diagnosed in 98 patients and they are subject to this study. Some of them were reviewed retrospectively. Data from patients’ history, physical examination and laboratory tests were reviewed as well.Results124 ovarian masses in 98 females’ group of average age 47.2 years were detected. Following the MRI criteria, 59.2% of the cases were considered benign, 30.6% malignant and 10.2% borderline. Out of all masses 58.1% were classified as cystic, 12.9% as solid and 29% as mixed. Оf histologically proven tumors 74.4% were benign and 25.6% were malignant. All of the malignant tumors had restricted diffusion. 64 out of all patients underwent contrast enhancement. (34 there were a subject of contraindications). 39 (61%) of the masses showed contrast enhancement.ConclusionsClassifying adnexal masses is essential for the preoperative management of the patients. 3T MRI protocols, in particular diffusion techniques, increase significantly the accuracy of the diagnostic assessment.

scholarly journals The added value of non-contrast 3-Tesla MRI for the pre-operative localization of hyperparathyroidism

2021 ◽  
Author(s):  
Yoshitaka Kawai ◽  
Mami Iima ◽  
Hirotaka Yamamoto ◽  
Makiko Kawai ◽  
Ayami Ohno Kishimoto ◽  
...  
Keyword(s):  
Added Value ◽  
3 Tesla ◽  
3 Tesla Mri

Single Cell Imaging of Human Cologenic Carcinoma Cells by 3-Tesla MRI

2004 ◽  
Vol 176 (03) ◽  
Author(s):  
UKM Teichgräber ◽  
JG Pinkernelle ◽  
F Neumann ◽  
T Benter ◽  
H Bruhn ◽  
...  
Keyword(s):  
Single Cell ◽  
Cell Imaging ◽  
Carcinoma Cells ◽  
3 Tesla ◽  
Single Cell Imaging ◽  
3 Tesla Mri

Multidirectional War and Paramilitarism

2018 ◽  
Author(s):  
Tomas Balkelis
Keyword(s):  
National Identity ◽  
Local Level ◽  
Local Population ◽  
Cycle Of Violence ◽  
Different Types ◽  
The Masses ◽  
Socially Motivated

This chapter, by following the course of military actions in Lithuania in 1919, explores the emergence of various military and paramilitary groups that engaged in different types of violence. The focus here is on the entanglement of three types of actors: those that performed state-sanctioned violence; those that acted as semi-independent paramilitary agents, and those that engaged in ethnically or socially motivated violence on a local level. The ability of the Lithuanian government to survive the series of military engagements in 1919 enhanced its legitimacy among the local population, and laid the foundation for a modern Lithuanian identity among the masses. Yet the new state and national identity were shaped in a continuous cycle of violence, social strife, mobilization, and militarization of society.

scholarly journals MiRNA Expression in Neuroendocrine Neoplasms of Frequent Localizations

2021 ◽  
Vol 7 (3) ◽  
pp. 38
Author(s):  
Alexandra Korotaeva ◽  
Danzan Mansorunov ◽  
Natalya Apanovich ◽  
Anna Kuzevanova ◽  
Alexander Karpukhin
Keyword(s):  
Mirna Expression ◽  
Malignant Tumors ◽  
Neuroendocrine Neoplasms ◽  
Specific Expression ◽  
Clinical Biomarkers ◽  
Different Types ◽  
Functional Features ◽  
First Time ◽  
Potential Biomarkers

Neuroendocrine neoplasms (NEN) are infrequent malignant tumors of a neuroendocrine nature that arise in various organs. They occur most frequently in the lungs, intestines, stomach and pancreas. Molecular diagnostics and prognosis of NEN development are highly relevant. The role of clinical biomarkers can be played by microRNAs (miRNAs). This work is devoted to the analysis of data on miRNA expression in NENs. For the first time, a search for specificity or a community of their functional characteristics in different types of NEN was carried out. Their properties as biomarkers were also analyzed. To date, more than 100 miRNAs have been characterized as differentially expressed and significant for the development of NEN tumors. Only about 10% of the studied miRNAs are expressed in several types of NEN; differential expression of the remaining 90% was found only in tumors of specific localizations. A significant number of miRNAs have been identified as potential biomarkers. However, only a few miRNAs have values that characterized their quality as markers. The analysis demonstrates the predominant specific expression of miRNA in each studied type of NEN. This indicates that miRNA’s functional features are predominantly influenced by the tissue in which they are formed.

scholarly journals Potential predictive value of axial T2 mapping at 3 Tesla MRI in patients with untreated patellar cartilage defects over a mean follow-up of four years

2020 ◽  
Vol 28 (2) ◽  
pp. 215-222 ◽  
Author(s):  
S.R. Apprich ◽  
M.M. Schreiner ◽  
P. Szomolanyi ◽  
G.H. Welsch ◽  
U.K. Koller ◽  
...  
Keyword(s):  
Predictive Value ◽  
T2 Mapping ◽  
3 Tesla ◽  
Cartilage Defects ◽  
Patellar Cartilage ◽  
3 Tesla Mri

scholarly journals Interobserver agreement of Prostate Imaging–Reporting and Data System (PI-RADS–v2)

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Hala Maher Ahmed ◽  
Ahmed Ebrahim Ebeed ◽  
Ahmed Hamdy ◽  
Mohamed Abou El-Ghar ◽  
Ahmed Abdel Khalek Abdel Razek
Keyword(s):  
Interobserver Agreement ◽  
Imaging Modality ◽  
Peripheral Zone ◽  
Transitional Zone ◽  
Data System ◽  
3 Tesla ◽  
Prostate Imaging ◽  
Percent Agreement ◽  
3 Tesla Mri

Abstract Background A retrospective study was conducted on 71 consecutive patients with suspected prostate cancer (PCa) with a mean age of 56 years and underwent mp-MRI of the prostate at 3 Tesla MRI. Two readers recognized all prostatic lesions, and each lesion had a score according to Prostate Imaging–Reporting and Data System version 2 (PI-RADS-v2). Purpose of the study To evaluate the interobserver agreement of PI-RADS-v2 in characterization of prostatic lesions using multiparametric MRI (mp-MRI) at 3 Tesla MRI. Results The overall interobserver agreement of PI-RADS-v2 for both zones was excellent (k = 0.81, percent agreement = 94.9%). In the peripheral zone (PZ) lesions are the interobserver agreement for PI-RADS II (k = 0.78, percent agreement = 83.9%), PI-RADS III (k = 0.66, percent agreement = 91.3 %), PI-RADS IV (k = 0.69, percent agreement = 93.5%), and PI-RADS V (k = 0.91, percent agreement = 95.7 %). In the transitional zone (TZ) lesions are the interobserver agreement for PI-RADS I (k = 0.98, percent of agreement = 96%), PI-RADS II (k = 0.65, percent agreement = 96%), PI-RADS III (k = 0.65, percent agreement = 88%), PI-RADS IV (k = 0.83, percent agreement = 96%), and PI-RADS V (k = 0.82, percent agreement = 92%). Conclusion We concluded that PI-RADS-v2 is a reliable and a reproducible imaging modality for the characterization of prostatic lesions and detection of PCa.

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