scholarly journals Uterine peristalsis and junctional zone: correlation with age and postmenopausal status

2016 ◽  
Vol 58 (2) ◽  
pp. 224-231 ◽  
Author(s):  
Kayo Kiguchi ◽  
Aki Kido ◽  
Masako Kataoka ◽  
Fuki Shitano ◽  
Koji Fujimoto ◽  
...  
Keyword(s):  
Postmenopausal Women ◽  
Cine Mri ◽  
Moderate Correlation ◽  
Resonance Imaging ◽  
Junctional Zone ◽  
Age Related ◽  
Postmenopausal Status ◽  
Magnetic Resonance Imaging Mri ◽  
Age Related Changes ◽  
Uterine Peristalsis

Background Although age-related change of junctional zone (JZ) of the uterus has been known, there has been no previous systematic study of age-related changes of uterine peristalsis that is observed as the wave conduction of the thickest or darkest area within the JZ. Purpose To examine the age-related changes of uterine peristalsis in pre and postmenopausal women using cine magnetic resonance imaging (MRI), and to determine the correlation between peristalsis and JZ on T2-weighted (T2W) imaging. Material and Methods Cine MRI analysis was performed in 64 premenopausal volunteers and in 43 postmenopausal women. The peristaltic frequency, JZ detectability, and JZ thickness were evaluated and compared between the two groups. In the premenopausal group, the correlations between age and each item was examined. In the postmenopausal group, the number of years after menopause was used instead of age. The correlation between peristaltic frequency and JZ detectability or thickness was also analyzed. Results Peristaltic frequency and JZ detectability significantly differed between the two groups, while JZ thickness did not. Peristaltic frequency did not vary significantly with age before menopause and no peristalsis was observed after menopause. JZ detectability did not change significantly with age or number of years after menopause, while JZ thickness significantly increased with age before menopause, but did not vary after menopause. A significant moderate correlation was observed between JZ detectability and peristaltic frequency, but not between JZ thickness and peristaltic frequency. Conclusion Uterine peristalsis frequency did not change significantly according to age, but observed peristalsis on MRI significantly decreased after menopause.

Ultrasound parameters of pelvic organs and their age-related changes in a cohort of asymptomatic postmenopausal women: A community-based study

2020 ◽  
Vol 26 (3) ◽  
pp. 147-154
Author(s):  
Thiran D Dias ◽  
Thilina S Palihawadana ◽  
Malitha Patabendige ◽  
Mary BC Motha ◽  
Hithanadura J de Silva
Keyword(s):  
Postmenopausal Women ◽  
Endometrial Thickness ◽  
Hormone Replacement ◽  
Sri Lankan ◽  
Community Based ◽  
Pelvic Organs ◽  
Age Related ◽  
Pelvic Ultrasonography ◽  
Ultrasound Parameters ◽  
Age Related Changes

Objective To describe the ultrasound parameters of pelvic organs and their age-related changes in a cohort of asymptomatic postmenopausal women and to describe the prevalence of ultrasound-detected pathologies in a Sri Lankan population. Study design A large community-based longitudinal study using a randomly selected sample of postmenopausal women who have never used hormone replacement therapy. Main outcome measures Uterine, endometrial and ovarian measurements at pelvic ultrasonography as described by the International Endometrial Tumor Analysis and the International Ovarian Tumor Analysis groups. Results A total of 815 postmenopausal women were approached and all volunteered to participate. This included women between the ages of 45 and 74 years with a median (interquartile range (IQR)) of 62.0 (10.0) years. The median (IQR) uterine volume was 18.1 (17) ml, while the median (IQR) of right and left ovarian volumes were 17.3 (22.9) ml and 18.2 (21.5) ml. Both uterine and ovarian volumes showed an age-related decline (p < 0.01). Furthermore, the ovarian volumes demonstrated an increase in size with a higher body mass index (p < 0.03 for left and p < 0.01 for right, respectively). Median (IQR) endometrial thickness among the population was 3.0 (1.0) mm and there was no age-related change observed. Sixty-one women had an ultrasound-detected gynaecological pathology with a prevalence of 7.5% (95% confidence interval (CI) 5.6–9.5). Conclusions This study aimed at describing ultrasound parameters of pelvic organs among postmenopausal women of Sri Lanka was able to provide the reference values for uterine and ovarian volume among asymptomatic postmenopausal women. Both uterine and ovarian volumes demonstrated an age-related decline, whereas the endometrial thickness does not seem to relate to the age.

scholarly journals Age-related Changes in Locus Ceruleus on Neuromelanin Magnetic Resonance Imaging at 3 Tesla

2006 ◽  
Vol 5 (4) ◽  
pp. 197-200 ◽  
Author(s):  
Eri SHIBATA ◽  
Makoto SASAKI ◽  
Koujiro TOHYAMA ◽  
Yoshiyuki KANBARA ◽  
Kotaro OTSUKA ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Locus Ceruleus ◽  
3 Tesla ◽  
Resonance Imaging ◽  
Age Related ◽  
Age Related Changes

scholarly journals Charting human subcortical maturation with in vivo 7 T MRI

2021 ◽  
Author(s):  
S. Miletić ◽  
P.-L. Bazin ◽  
S.J.S. Isherwood ◽  
M. C. Keuken ◽  
A. Alkemade ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Neurodegenerative Diseases ◽  
Resonance Imaging ◽  
Subcortical Structures ◽  
Adult Lifespan ◽  
Age Related ◽  
Age Related Changes ◽  
Standard Magnetic Resonance Imaging

AbstractThe human subcortex comprises hundreds of unique structures. Subcortical functioning is crucial for behavior, and disrupted subcortical function is observed in common neurodegenerative diseases. Despite their importance, human subcortical structures continue to be difficult to study in vivo. Here, we zoom in on 17 prominent subcortical structures, by describing their approximate iron and myelin contents and thickness, and by providing detailed accounts of their age-related changes across the normal adult lifespan. The results provide compelling insights into the highly heterogeneous morphometry and intricate age-related variations of these structures. They also show that the locations of these structures shift across the lifespan, which is of direct relevance for the use of standard magnetic resonance imaging atlases. The results further our understanding of subcortical morphometry and neuroimaging properties, and of normal aging processes which ultimately can improve understanding of neurodegeneration.

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