1.Pelvic arteriovenous malformation involving the uterine and internal iliac vessels with concomitant true aneurysm of uterine artery diagnosed through color Doppler ultrasound
Ma Cresilda Paz B. Salamilao-Sabularce ; Gumersinda Cruz-Javier
Philippine Journal of Obstetrics and Gynecology 2023;47(5):278-282
Background:
Pelvic arteriovenous malformations (AVMs) are rare but carries life-threatening consequences.
Case Report:
A 47-year-old multipara who had previously undergone four cesarean sections
came for re-evaluation of a malignant ovarian new growth. She was asymptomatic. Repeat ultrasound
revealed normal ovaries, and a cystic structure at the left adnexa with abundant mixing of colors,
turbulent flow and pulsative waveforms on spectral Doppler. It arises from serpentine tubular structures
from the uterine isthmus. Uterine artery aneurysm was considered. Magnetic resonance angiography
confirmed the findings of aneurysm and pelvic arteriovenous malformation. The patient underwent a
hysterectomy with ligation and excision of aneurysm. Histopathologic findings showed pelvic AVM
and a true aneurysm of the uterine artery.
Conclusion
Ultrasound with color Doppler is a low-cost and readily available tool for gynecologists
for the diagnosis and management of pelvic AVM.
Ultrasonography, Doppler
2.Clinical study of color doppler ultrasonography in IVF-ET.
Young Beom CHA ; Hong Ki KIM ; Seung Jae LEE ; Jong Min PARK ; Young Ho LEE
Korean Journal of Obstetrics and Gynecology 1991;34(5):697-704
No abstract available.
Ultrasonography, Doppler, Color*
3.Investigation of some Doppler ultrasonographic measurements of left and right ventricular function, pulmonary artery pressure and respiratory function on patients with chronic obstructive pulmonary disease (COPD)
Journal of Practical Medicine 2002;427(7):57-60
The smoking level and the lung ventilatory function was measured on 30 patients with COPD (19 males, 11 females, mean aged 68.3+/-11.5) and 30 non-smoking controls (17 males, 13 females) without cardio-vascular and respiratory diseases at HuÕ Central Hospital. Results: There is not any correlation between respiratory function measurements and Doppler echocardiographic measurements. The smoking level as measured by packages per year has close correlation with the decrease in respiratory function (r = -0.73, p = 0.01). The combination of many Doppler echocardiographic measurements is helpful in evaluating the pulmonary hypertension in patients with COPD.
Ultrasonography, Doppler
;
diagnosis
4.The role of the acoustic radiation force in color Doppler twinkling artifacts.
Jeong Hwa YANG ; Gwansuk KANG ; Min Joo CHOI
Ultrasonography 2015;34(2):109-114
PURPOSE: The aim of this experimental study was to evaluate whether the acoustic radiation force (ARF) is a potential source of twinkling artifacts in color Doppler images. METHODS: Color Doppler images were obtained using a clinical ultrasonic scanner (Voluson e, GE Healthcare) for a high contrast (+15 dB) circular scattering phantom at pulse repetition frequencies (PRFs) ranging from 0.1 to 13 kHz. Ultrasound transmissions resulting in ARF were measured using a hydrophone at the various PRFs considered. The influence of ARF on the appearance of twinkling colors was examined via the common parameter PRF. This methodology is based on the fact that alternating positive and negative Doppler shifts induced by the ARF are centered at a PRF twice the maximum Doppler frequency on the color scale bar, whereas the twinkling color aliasing is expected to remain similar regardless of PRF. RESULTS: Color twinkling artifacts were observed to be most conspicuous at the lowest PRF of 0.1 kHz. The extent of twinkling rapidly decreased as the PRF increased, eventually disappearing when the PRF > or =0.6 kHz. The measured ultrasound transmissions, however, were found to be insensitive to the PRF, and therefore it can be inferred that the PRF was insensitive to the ARF. CONCLUSION: Based on our experimental observations, the ARF may not be a source of color Doppler twinkling artifacts.
Acoustics*
;
Artifacts*
;
Doppler Effect
;
Ultrasonics
;
Ultrasonography
;
Ultrasonography, Doppler, Color
5.Usefulness of Transcranial Doppler Sonography for Determining Brain Death.
Byeong Ju GWON ; Jee Hyun KWON ; Wook Joo KIM
Journal of the Korean Neurological Association 2015;33(2):119-121
No abstract available.
Brain Death*
;
Ultrasonography, Doppler, Transcranial*
6.Imaging Findings of Acute Torsion of the Gallbladder: Case Report.
Seong Hoon KIM ; Jong Yeol KIM ; Hun Kyu RYEOM
Journal of the Korean Radiological Society 2004;51(3):313-316
Torsion of the gallbladder is a rare and acute abdominal condition. Even with the recent advances in radiologic imaging modalities, it is difficult to make a correct preoperative diagnosis of gallbladder torsion. We recently experienced a case of gallbladder torsion at the body portion in which an accurate preoperative diagnosis could be made on the gray scale and by using color Doppler ultrasonography. We report the imaging and operative findings with particular emphasis on the ultrasonographic "whirlpool sign".
Diagnosis
;
Gallbladder*
;
Ultrasonography, Doppler, Color
7.UltraFast Doppler ultrasonography for hepatic vessels of liver recipients: preliminary experiences.
Bo Yun HUR ; Jae Young LEE ; A Jung CHU ; Se Hyung KIM ; Joon Koo HAN ; Byung Ihn CHOI
Ultrasonography 2015;34(1):58-65
PURPOSE: The purpose of this study was to investigate the value of UltraFast Doppler ultrasonography (US) for evaluating hepatic vessels in liver recipients. METHODS: Thirty-nine liver Doppler US sessions were conducted in 20 liver recipients. Each session consisted of UltraFast and conventional liver Doppler US in a random order. We compared the velocities and phasicities of the hepatic vessels, duration of each Doppler study, occurrence of technical failures, and differences in clinical decisions. RESULTS: The velocities and resistive index values of hepatic vessels showed a strong positive correlation between the two Doppler studies (mean R=0.806; range, 0.710 to 0.924). The phasicities of the hepatic vessels were the same in both Doppler US exams. With respect to the duration of the Doppler US exam, there was no significant difference between the UltraFast (251+/-99 seconds) and conventional (231+/-117 seconds) Doppler studies (P=0.306). In five poor breath-holders, in whom the duration of conventional Doppler US was longer, UltraFast Doppler US (272+/-157 seconds) required a shorter time than conventional Doppler US (381+/-133 seconds; P=0.005). There was no difference between the two techniques with respect to technical failures and clinical decisions. CONCLUSION: UltraFast Doppler US is clinically equivalent to conventional Doppler US with advantages for poor breath-holders during the post-liver transplantation work-up.
Liver Transplantation
;
Liver*
;
Ultrasonography, Doppler*
8.Association of ultrasound morphological features with serum β subunit human chorionic gonadotrophin and histopathology among sonologically diagnosed cases of gestational trophoblastic neoplasia in a tertiary hospital
Donnabelle R. Taub‑Hernando ; Melissa D. Amosco
Philippine Journal of Obstetrics and Gynecology 2023;47(3):121-128
Background:
Gestational trophoblastic neoplasia (GTN) presents as vascular mass of varying
morphology on ultrasound and confirmed through quantitative serum β subunit human chorionic
gonadotrophin (β‑hCG). In regions with limited access to β‑hCG, ultrasound plays a crucial role in
the initial diagnosis for timely management.
Objectives:
This study aimed to investigate the associations between ultrasound vascular morphologic features, serum β‑hCG levels, and histopathology in GTN cases.
Methodology:
A cross‑sectional review was conducted on 113 cases with ultrasound impression
of GTN over an 8‑year period. The patient data were extracted from case records, and ultrasound
images were categorized based on the distinct features. Associations with β‑hCG levels and
histopathology were analyzed using the Chi‑square test and Mann–Whitney U‑test. Statistical
significance was set at P < 0.05.
Results:
A significant association was observed between ultrasound category and serum
β‑hCG (P < 0.0001). The compact and diffuse types were more prevalent with β‑hCG levels between
104
to <105 mIU/mL, while the lacunar type was common among patients with ≥105 mIU/mL.
However, there was no significant association between ultrasound categories and mean β‑hCG
levels. Regarding histopathology, the lacunar type was more common in invasive moles, whereas
the compact and diffuse types tended to be seen with choriocarcinoma, although these were not
statistically significant (P = 0.182).
Conclusions
Morphologic types of GTN by gray scale and Doppler ultrasound vary across the
different levels of serum β‑hCG and may suggest the histopathological diagnosis. This study provides
valuable insights into the ultrasonographic characteristics of GTN, which can aid in its diagnosis
and management.
Gestational Trophoblastic Disease
;
Ultrasonography, Doppler
9.Primarily study on the hemodynamic in the major vascular in the brain by transcranial ultrasound Doppler
Journal of Practical Medicine 2002;435(11):30-33
49 healthy people without the cardiovascular diseases and cerebral pathology with ages of 17-84, divided 3 groups participated to a study. The results have shown that the maximal and medial speed of the major cerebravascular was gradually reduced as increase of age. The highest reduction of speed found in the vascular in the medial brain, followed by anterior, posterior, basal brain and at last of spine. There is no different between vascular and ages in the speed indicators in the healthy persons.
Hemodynamic Phenomena
;
Ultrasonography, Doppler, Transcranial
;
Ultrasonics
;
Ultrasonography
10.The Diagnostic Value of the Color Doppler Ultrasonography in Chronic Prostatitis.
Nam Bae HUH ; Won Yeol CHO ; Hyun Woo KIM
Korean Journal of Urology 1998;39(10):968-971
PURPOSE: To evaluate the significance of color Doppler ultrasonography in patients of chronic prostatitis. MATERIALS AND METHODS: We analysed the pattern of color Doppler images and quantitative changes of vascular flow and flow velocity parameters(FVP) using a 7.0 MHz transrectal probe with findings of expressed prostatic secretion (EPS) from 22 patients with clinically suspected chronic prostatitis and 12 controls with clinically suspected prostatodynia retrospectively. RESULTS: Compared with 2 groups according to color Doppler flow grade, higher grades(grade 2 or 3) of flow increase were more frequently seen in prostatitis group(54.5%) than in control group(33.3%)(p <0.05). But no significant difference was found in flow velocity parameter(FVP: maximal flow velocity, minimal flow velocity, resistive index, and pulsatility index) between control and prostatitis group. Two months later follow up ultrasonography of 5 cases in the prostatitis group after treatment, all of 5 cases showed decrease the color Doppler flow compared with the initial color Doppler image grade. CONCLUSIONS: Grading of the amount of color flow with Doppler ultrasonography is of limited significance at efficacy decision after treatment in chronic prostatitis. But precaution should be taken to use color Doppler ultrasonography as objective diagnostic tool, although higher grades of flow increase were more frequently seen in prostatitis group than control group.
Follow-Up Studies
;
Humans
;
Prostatitis*
;
Retrospective Studies
;
Ultrasonography
;
Ultrasonography, Doppler
;
Ultrasonography, Doppler, Color*