The term endometriosis refers to ectopic endometriume. It most often involves the pelvic organs, including ovaries, broad and round ligaments, fallopian tubes, cervix, vagina and the pouch of Douglas. We report a case of vesical endometriosis in a 4- year old female patient and review literature. Segmental resection of this mass with involved bladder resulted in cure and this lesion was confirmed histologically as endometriosis of the bladder.
Cervix Uteri ; Endometriosis* ; Endometrium ; Fallopian Tubes ; Female ; Humans ; Ovary ; Round Ligament of Uterus ; Urinary Bladder ; Vagina

BACKGROUND AND PURPOSE: Wandering is one of the most common behavioral and psychological symptoms of dementia, and associated with some of the adverse outcomes in dementia, such as getting lost or even death. The etiology of wandering is not yet clearly known. As depression and wandering are both very common among the patients with dementia, this study examined the relationship between the depression and wandering among the community dwelling patients with dementia. METHODS: Fifty community dwelling patients diagnosed with dementia were included in this study if they had primary family caregiver, older than age 18 in Seoul, South Korea. The Geriatric Depression Scale, Korean Version (GDS-K), Korean Version of the Mini-Mental State Examination (K-MMSE) and Korean Version of Revised Algase Wandering Scale-Community Version (K-RAWS-CV) were used to measure the severity of depression, cognitive function and wandering. RESULTS: Thirty percents of the patients showed wandering. Mean score of GDS-K was significantly higher in wanderers than non-wanderers. Severity of depression was significantly correlated with the total score of K-RAWS-CV and subscales of persistent walking, repetitive walking, eloping behavior, and mealtime impulsivity in whole sample. K-MMSE score also was related to wandering behavior. The prevalence odds ratio for wandering in depressed patients compared with undepressed group was 8.386 (95% confidence interval: 1.978-35.561). CONCLUSIONS: This study implicates that not only cognitive impairment but also psychosocial aspects should be considered in wandering patients with dementia and suggests assessing the depression in patients would be helpful in identifying the causes of wandering.
Caregivers ; Dementia* ; Depression* ; Humans ; Impulsive Behavior ; Korea ; Meals ; Odds Ratio ; Prevalence ; Seoul ; Walking ; Wandering Behavior

No abstract available.
Humans ; Kidney Failure, Chronic* ; Peritoneal Dialysis, Continuous Ambulatory*

Purpose: In histotripsy, a shock wave is transmitted, and the resulting inertial bubble cavitation that disrupts tissue is used for treatment. Therefore, it is necessary to detect when cavitation occurs and track the position of cavitation occurrence using a new passive cavitation (PC) imaging method. Methods: An integrated PC image, which is constructed by collecting the focused signals at all times, does not provide information on when cavitation occurs and has poor spatial resolution. To solve this problem, we constructed instantaneous PC images by applying delay and sum beamforming at instantaneous time instants. By calculating instantaneous PC images at all data acquisition times, the proposed method can detect cavitation when it occurs by using the property that when signals from the cavitation are focused, their amplitude becomes large, and it can obtain a high-resolution PC image by masking out side lobes in the vicinity of cavitation. Results: Ultrasound image simulation confirmed that the proposed method has higher resolution than conventional integrated PC imaging and showed that it can determine the position and time of cavitation occurrence as well as the signal strength. Conclusion Since the proposed novel PC imaging method can detect each cavitation separately when the incidence of cavitations is low, it can be used to monitor the treatment process of shock wave therapy and histotripsy, in which cavitation is an important mechanism of treatment.

Purpose: This study aimed to propose a new ground truth ultrasound imaging method and to confirm its efficacy when applied to side lobe suppression filtering. Methods: Using a computer simulation, we synthesized a side lobe-free image (i.e., with no side lobe whatsoever) by separating the main and side lobe signals in the construction of point target, speckled cyst, and pseudo-kidney images. During signal processing, we assessed the quality of the filtered image by comparing it with a ground truth image (i.e., the main lobe image). Results: We examined the effect of reducing the side lobe by applying aperture apodization, side lobe estimation and reduction filtering, and minimum variance beamforming, which are widely used as side lobe suppression techniques. Despite the drawback of decreased resolution, the commonly used apodization method increases the contrast, which improves ultrasound image quality and enables a better diagnosis. Although side lobe estimation and reduction filtering and minimum variance beamforming are demanding in terms of computational resources, they can considerably improve ultrasound images. Compounding of ultrasound images processed by various signal processing methods increases the resolution and contrast, while reducing the speckle noise. Conclusion Although it appears that the proposed method can only be used for computer-generated radiofrequency data, this method can improve ultrasound image quality by identifying the characteristics of signal processing filters for side lobe suppression and applying appropriately adjusted filters to in vivo human imaging data.

No abstract available.
Child* ; Humans ; Infant* ; Urinary Tract Infections* ; Urinary Tract*

Incomplete bladder emptying even after prostatectomy were not uncommonly anticipated in patients with benign prostate hypertrophy (BPH) who had episodes of acute urinary retention. This may be related h impaired contractility of detrusor muscle secondary to decreased blood flow to the bladder and over-stretching of detrusor muscle caused by overdistension of bladder. We measured detrusor contractility in 41 patients with BPH who had episodes of urine retention (Group A) and 77 patients with BPH without urine retention. Also, follow up uroflowmetry were taken for 25 patients of group A and 40 patients of group B in 30-50 days after prostatectomy. Results were as follows; I. On filling cystometry. first sense of fill, urge sense to void, maximum cystometric capacity and compliance were not significantly different between 2 groups and detrusor instability were 23 cases (56%) in group A, 38 cases (49%) in group B. 2. On pressure-flow study, maximum detrusor voiding pressure was 32.5+/-4.13 cmH2O in group A and 50.27+/-2.4 cmH2O in group B (P<0.01). Peak flow rate (Qmax) and voided volume were 4.1 to 0.7 ml/sec, 76.1+/-12.7 ml in group A and 8.6+/-0.65 ml/sec, 176.1+/-16.7 ml in group B respectively (P<0.01, P<0.01). Residual urine was 256.5 1:24.3 ml in group A and 111.6 t 14.7 ml in group B (P<0.01). 3. On postoperative follow up uroflowmetry, voided volume and Qmax were increased compared to preoperative value in group A but still lower than those in group B (P<0.05, P<0.05). 4. The number of patients who didn't show any improvement of voiding symptoms after surgery were 17 on group A and 11 on group B. Impaired detrusor contractility was present in 25 of 41 cases (61%) of group A and 10 of 71 cases (13%) of group B on urodynamic diagnosis. Conclusively, in patients with BPH who had episodes of urine retention, preoperative pressure-flow study to recognize impaired detrusor contractility would be helpful in anticipating incomplete bladder emptying after prostate surgery and considering other forms of ancillary therapy.
Compliance ; Diagnosis ; Follow-Up Studies ; Humans ; Hypertrophy ; Prostate ; Prostatectomy ; Prostatic Hyperplasia* ; Urinary Bladder ; Urinary Retention ; Urodynamics

No abstract available.
Classification* ; Female ; Hydatidiform Mole* ; Pregnancy ; Risk Factors*

No abstract available.
Classification* ; Female ; Hydatidiform Mole* ; Pregnancy ; Risk Factors*

This paper estimates the side lobe levels from the received echo data, and proposes and compares three types of filters that can be used to suppress them in an ultrasound image. Ultrasound echo signals from the offaxis scatterers can be modeled as a sinusoidal wave whose spatial frequency in the lateral direction of a transducer array varies as a function of the incident angle. The received channel data waveform due to side lobes have a spatial frequency of an integer plus a half. Doubling the length of the channel data by appending zeros and taking the discrete Fourier transform of the elongated data makes the spatial frequency of the channel data due to side lobes become an integer. Thus, it is possible to estimate the complex amplitude of the side lobes. Adding together all the channel data of the estimated side lobes, we can obtain the side lobe levels present in ultrasound field characteristics. We define the summed value as a quality factor that is used as a parameter of side lobe suppression filters. Computer simulations as well as experiments on wires in a water tank and a cyst phantom show that the proposed filters are very effective in reducing side lobe levels and that the amount of computation is smaller than that of the minimum variance beamforming method while showing comparable performance. A method of estimating and suppressing side lobes in an ultrasound image is presented, and the performance of the proposed filters is found to be viable against the conventional B-mode imaging and minimum variance beamforming methods.
Computer Simulation ; Fourier Analysis ; Methods ; Transducers ; Ultrasonography* ; Water