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

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.

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

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.

Blood oxygen-level dependent functional assessment of cerebrovascular reactivity: Feasibility for intraoperative 3 Tesla MRI

2016 ◽  
Vol 77 (2) ◽  
pp. 806-813 ◽  
Author(s):  
Jorn Fierstra ◽  
Jan-Karl Burkhardt ◽  
Christiaan Hendrik Bas van Niftrik ◽  
Marco Piccirelli ◽  
Athina Pangalu ◽  
...  
Keyword(s):  
Functional Assessment ◽  
Blood Oxygen Level Dependent ◽  
Cerebrovascular Reactivity ◽  
3 Tesla ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
3 Tesla Mri

Cognitive Correlates of Subregional Hippocampal Volumetry in Late Onset Depression: A 3 Tesla MRI Study

2016 ◽  
Vol 24 (3) ◽  
pp. S132-S133
Author(s):  
Sivakumar P. Thangaraju ◽  
Srikanth Miriyala ◽  
Nagalakshmi R M ◽  
Harshita Vishwakarma ◽  
Shivakumar Venkatram ◽  
...  
Keyword(s):  
Late Onset ◽  
3 Tesla ◽  
Cognitive Correlates ◽  
3 Tesla Mri ◽  
Mri Study

Customization of normal data base specific for 3-tesla MRI is mandatory in VSRAD analysis

2008 ◽  
Vol 1 (2) ◽  
pp. 196-200 ◽  
Author(s):  
Masami Goto ◽  
Yuuichi Suzuki ◽  
Osamu Abe ◽  
Naoto Hayashi ◽  
Shigeki Aoki ◽  
...  
Keyword(s):  
Data Base ◽  
3 Tesla ◽  
3 Tesla Mri

scholarly journals Accuracy of Two-dimensional Ultrasound and Magnetic Resonance Imaging in Diagnosis of Foetal Congenital Anomalies in a Tertiary Care Hospital- A Cross-sectional Study

2021 ◽  
Author(s):  
Jaybrata Ray ◽  
Jaharlal Baidya ◽  
Tanusri Debbarma ◽  
Jobin Joy
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Congenital Anomalies ◽  
High Field ◽  
Cross Sectional Study ◽  
3 Tesla ◽  
Sectional Study ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
3 Tesla Mri

Introduction: Ultrasound screening for foetus congenital malformations is the mainstay in diagnosis and is commonly performed at 19-22 weeks gestation. Magnetic Resonance Imaging (MRI) is known as a problem solving tool which is used for answering a specific question. Both ultrasound and foetus MRI are highly sensitive and specific in diagnosis of congenital anomalies of the foetus with high agreement between both modalities. Aim: To determine the accuracy of Ultrasound Sonography (USG) and High Field 3 tesla MRI in diagnosis of different types of foetal Central Nervous System (CNS) and non CNS congenital abnormalities. Materials and Methods: A cross-sectional study was conducted in the Department of Radiodiagnosis at Agartala Government Medical College and GB Pant Hospital from June 2017 to May 2019. A total of 65 cases with ultrasound diagnosis of foetus abnormalities were examined by 3 Tesla MRI. MRI were performed within 15 days after USG detected anomalies. Statistical analysis was done using Chi-square test. Results: In cases with foetus anomalies high field MRI provided detailed findings leading to a more refined diagnosis. CNS anomalies were more as compared to other anomalies. Some of the antenatal findings were confirmed in some cases following termination of pregnancy and some were by postnatal examination. Among them chest anomalies was least common i.e., 1.5%. sensitivity of MRI was 88.13%, specificity was 66.66%, Positive Pressure Ventilation (PPV) was 96.29%, Negative Predictive Value (NPV) was 36.36% and USG sensitivity was 82.43%, specificity and 77.77%, PPV was 95.83%and NPV was 41.17%. Conclusion: High field MRI should be used as a second line of investigation in patients with foetus abnormalities diagnosed by ultrasound for confirmation of diagnosis and selecting the treatment protocol. In cases of fatal abnormalities, a confirmed diagnosis made before 20 weeks of pregnancy may help by terminating the pregnancy.

Sign in / Sign up

Export Citation Format

Share Document