scholarly journals Determination of Testicular Blood Flow in Camelids Using Vascular Casting and Color Pulsed-Wave Doppler Ultrasonography

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Michelle Kutzler ◽  
Reid Tyson ◽  
Monica Grimes ◽  
Karen Timm
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasonography ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Ventral Surface ◽  
Testicular Artery ◽  
Diastolic Velocity ◽  
Testicular Blood Flow ◽  
Pulsed Wave Doppler

We describe the vasculature of the camelid testis using plastic casting. We also use color pulsed-wave Doppler ultrasonography to measure testicular blood flow and compare the differences between testicular blood flow in fertile and infertile camelids. The testicular artery originates from the ventral surface of the aorta, gives rise to an epididymal branch, and becomes very tortuous as it approaches the testis. Within the supratesticular arteries, peak systolic velocity (PSV) was higher in fertile males compared to infertile males (P=0.0004). In addition, end diastolic velocity (EDV) within the supratesticular arteries was higher for fertile males when compared to infertile males (P=0.0325). Within the marginal arteries, PSV was also higher in fertile males compared to infertile males (P=0.0104). However, EDV within the marginal arteries was not significantly different between fertile and infertile males (P=0.121). In addition, the resistance index was not significantly different between fertile and infertile males within the supratesticular (P=0.486) and marginal arteries (P=0.144). The significance of this research is that in addition to information obtained from a complete reproductive evaluation, a male camelid's fertility can be determined using testicular blood flow measured by Doppler ultrasonography.

scholarly journals Ultrasound Characteristics of the Nutcracker Syndrome

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
Ihor Kobza ◽  
Irena Nesterenko ◽  
Volodymyr Nesterenko
Keyword(s):  
Blood Flow ◽  
Renal Vein ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Left Renal Vein ◽  
Peak Systolic Velocity ◽  
Gonadal Vein ◽  
Critical Stenosis ◽  
Vein Stenosis

The article presents the results of color Doppler ultrasonography of the left renal vein and gonadal vein with the determination of the peak systolic velocity of blood flow and abnormal blood reflux in patients with left-sided varicocele. The objective of the research was to compare preoperative ultrasound characteristics of the left renal vein, left gonadal vein, peak systolic velocity of blood flow and the presence of abnormal blood reflux, the formation of ultrasound criteria for the selection of patients for surgical correction of phlebohypertension. Results. Ultrasound signs of aorta mesenteric compression were absent in 24 (24.5%) patients; the signs of aorta mesenteric compression without critical left renal vein stenosis were observed in 64 (65.3%) patients; critical stenosis of the left renal vein was diagnosed in 10 (10.2 %) patients. The patients with critical stenosis of the left renal vein underwent left renal vein transposition. Conclusions. Ivanissevich surgery with prognostically low risk of relapse is recommended for the patients with left-sided varicocele without any signs of aorta mesenteric compression. Patients with the signs of aorta mesenteric compression require clear determination of the degree of left renal vein stenosis. We consider the transposition of the left renal vein to be indicated in case of critical stenosis when the correlation of the diameters of the distal and proximal segments of the left renal vein is ≥ 3 and the ratio of peak systolic velocities in the proximal and distal segments is ≥ 6. Thus, the diagnosis of phleborenohypertension in the patients with varicocele by means of color Doppler ultrasonography with the determination of blood flow velocity indicators in the left renal vein circulation and the determination of the critical stenosis of the left renal vein is decisive in choosing the surgical method of treatment. This provides an opportunity to evaluate the cause of varicocele occurrence and choose the optimal method of surgical treatment.  

scholarly journals Ultrasonografic monitoring of hemodynamic parameters in symptomatic and asymptomatic patients with high-grade carotid stenosis prior and following carotid endarterectomy

2012 ◽  
Vol 69 (5) ◽  
pp. 399-404 ◽  
Author(s):  
Anka Mitrasinovic ◽  
Jovo Kolar ◽  
Sandra Radak ◽  
Dragoslav Nenezic ◽  
Ivana Kupresanin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Carotid Endarterectomy ◽  
Carotid Stenosis ◽  
Diagnostic Tool ◽  
Doppler Ultrasonography ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Hemodynamic Parameters ◽  
Diagnostic Modality ◽  
Asymptomatic Patients

Background/Aim. Doppler ultrasonography is now a reliable diagnostic tool for noninvasive examination of the morphology and hemodynamic parameters of extracranial segments of blood vessels that participate in the brain vascularisation. This diagnostic modality in recent years become the only diagnostic tool prior to surgery. The aim of the study was to determine hemodynamic status in symptomatic and asymtomatic patients with severe carotid stenosis prior to and after carotid endarterectomy (CEA). Methods. A total of 124 symptomatic and 94 asymptomatic patients who had underwent CEA at the Clinic for Cardiovasculare Disease ?Dedinje? in Belgrade were included in this study. Doppler ultrasonography examinations were performed one day before CEA and seven days after it. The peak systolic velocity (PSV), end-dyastolic velocity (EDV), time-averaged maximum blood flow velocity (MV), resistance index (RI) and the blood flow volume (BFV) of the ipsilateral and the contralateral internal carotid artery (ICA) were measured. Results. Diabetes was the only risk factor found significantly more frequent in symptomatic patients. There were significantly more occluded contralateral ICAs in the group of symptomatic patients. There was a significant increase in PSV, EDV, MV and BFV of the ipsilateral ICA after CEA and a significant decrease in PSV, EDV, MV and BFV of the contralateral ICA after CEA. RI is the only hemodynamic parameter without significant changes after CEA in both groups of patients. Comparing the values of hemodynamic parameters after CEA between the group of symptomatic and the group of asymptomatic patients no significant differences were found. Conclusion. The occlusion of the contralateral ICA is an important factor differentiating between symptomatic and asymptomatic patients with severe carotid stenosis. Successful surgery provides good recovery of cerebral hemodynamics in both symtomatic and asymptomatic patients.

scholarly journals A Doppler ultrasonographic study of cyclic changes of ovarian perfusion in the Beagle bitch

Reproduction ◽  
2001 ◽  
pp. 453-461 ◽  
Author(s):  
K Koster ◽  
C Poulsen Nautrup ◽  
AR Gunzel-Apel
Keyword(s):  
Blood Flow ◽  
Luteal Phase ◽  
Doppler Ultrasonography ◽  
Resistance Index ◽  
Arterial Blood Flow ◽  
Pulsed Doppler ◽  
Arterial Blood ◽  
Pulsed Doppler Ultrasonography ◽  
Diastolic Velocity ◽  
Cyclic Changes

Changes in intraovarian arterial blood flow were monitored by means of colour-coded and pulsed Doppler ultrasonography in Beagle bitches during the normal oestrous cycle (n = 11) and pregnancy (n = 3), and at PGF(2alpha)-induced luteolysis (n = 4). The ultrasonographic findings were related to the reproductive stage of the bitch, as determined by vaginoscopical and cytological criteria, and by the concentrations of oestradiol, LH and progesterone in peripheral blood plasma. Colour-coded Doppler ultrasonography was used to visualize and estimate intraovarian vascularization, and pulsed Doppler ultrasonography was used to measure the arterial blood flow. The systolic and diastolic peak velocities, the end-diastolic velocity, and the pulsatility index and resistance index were calculated for quantitative analysis of the Doppler waveforms. Intraovarian perfusion increased gradually during pro-oestrus. A marked enhancement of intraovarian colouring and blood flow velocities, and a decline in the indices for pulsatility and resistance were observed in the preovulatory period. Maximum perfusion was observed at ovulation and during the early luteal phase. Significant differences (P < 0.05) were detected for the values of all calculated Doppler parameters 2 days before and 2 days after ovulation. Intraovarian blood flow decreased gradually in accordance with luteal regression. Treatment with PGF(2alpha) caused a distinct decline in luteal activity and a concomitant reduction in intraovarian perfusion. The values of blood flow parameters found during the luteal phase of pregnant bitches were comparable to those of the normocyclic bitches. Doppler ultrasonography of the intraovarian arteries in bitches provides complementary information about cyclic changes of ovarian function.

FEATURES OF RENAL BLOOD FLOW IN PATIENTS WITH MULTIPLE MYELOMA AT DIFFERENT STAGES OF TUMOR PROGRESSION

2016 ◽  
Vol 1 (61) ◽  
pp. 52-58 ◽  
Author(s):  
Макарова ◽  
Natalya Makarova
Keyword(s):  
Multiple Myeloma ◽  
Blood Flow ◽  
Tumor Progression ◽  
Vascular Resistance ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Renal Hemodynamics ◽  
Renal Arteries ◽  
Diastolic Velocity ◽  
Segmental Arteries

The features of renal hemodynamics in 90 patients with multiple myeloma (MM) at different stages of tumor progression have been studied. The signs of renal hemodynamics disorder by ultrasound Dopplermetry data are already revealed at the first stages of MM. In the I and IIA stages there were diagnosed the following changes: the increase in average blood flow velocity (Vave) at the level of the interlobular arteries (20%); the reduction of peak systolic velocity (Vmax) at the level of arteries arc (11.4%); the drop of Vmax (24.5%), of Vave (11%), of diastolic velocity (Vmin) by 26% on interlobular arteries; the decrease of Vmin (26%) on segmental and main renal arteries. There was also revealed an increase in the indices of vascular resistance index (IR by 11%, IP by 13%) and main renal arteries (IR by 12%, IP by 16%). Under disease progression in IIIA stage there was: the growth of Vmax (21.5%), Vave (24.9%), Vmin (42.7%) on interlobular arteries; the decrease of Vave (24.8%), Vmin (51.5%) on interlobular renal arteries. The decrease of IR on interlobular arteries (9%) and its increase at the level of segmental and main renal arteries (11%) were diagnosed. The biggest changes in the blood flow by Dopplermetry data were diagnosed in MM patients at chronic renal disease (IІ and IIIB stages): the reduction of speed indicators on interlobular arteries – Vmax (26%), Vave (42%), Vmin (44%); on arc arteries – Vmax (29%), Vave (21%), Vmin (38%); on interlobar arteries – Vmax (30%), Vave (39%), Vmin (46%); on segmental arteries – Vmax (17%), Vave (22%), Vmin (42%); on the main renal artery – Vmax (11%), Vmin (33%). An increase in the indices of vascular resistance was revealed: IR on interlobular arteries (11%), the arc arteries (12%), interlobular arteries (11%), segmental arteries (13%), the main renal arteries (11%); IP on interlobular arteries (13%), the arc arteries (12%), interlobular arteries (13%), segmental arteries (12%), the main renal arteries (12%). These parameters correspond to Doppler criteria of chronic renal insufficiency of compensated stage.

scholarly journals Effect of occipitoatlantal decompression on cerebral blood flow dynamics as evaluated by Doppler ultrasonography

2021 ◽  
Vol 121 (2) ◽  
pp. 171-179
Author(s):  
Bryan Roberts ◽  
Andrew E. Makar ◽  
Ryan Canaan ◽  
Vanessa Pazdernik ◽  
Tatyana Kondrashova
Keyword(s):  
Blood Flow ◽  
Medical Students ◽  
Doppler Ultrasonography ◽  
Treatment Time ◽  
Peak Systolic Velocity ◽  
Post Treatment ◽  
Tissue Pressure ◽  
Treatment Interventions ◽  
Diastolic Velocity ◽  
College Of Osteopathic Medicine

Abstract Context Osteopathic manipulative treatment reduces symptoms in patients with headache disorders, but the underlying mechanisms are unclear. Objective To evaluate blood flow in the intracranial and extracranial vasculature before and after occipitoatlantal decompression (OAD) using Doppler ultrasonography. Methods Healthy, first-year osteopathic medical students from A.T. Still University’s Kirksville College of Osteopathic Medicine participated in a randomized, single-blinded, two-period, two-treatment crossover study. The participants were randomly assigned to 1 of 2 treatment interventions: OAD or sham touch. After one week, participants returned to have the other intervention performed. Blood flow parameters—peak systolic velocity (PSV) and end-diastolic velocity (EDV)—in the middle cerebral artery (MCA), internal carotid artery (ICA), and vertebral artery (VA) were evaluated before, immediately after, 5 minutes after, and 10 minutes after treatment. Differences in PSV, EDV, heart rate (HR), and blood pressure (BP) for both interventions were analyzed for the four time points using mixed-effects models. Results Thirty healthy medical students (11 men, 19 women; mean age, 24 years) participated in this study. EDV increased after OAD in the MCA, ICA, and VA (all p<0.001); no change occurred after sham touch (all p>0.05). EDV was greater for all post-treatment timepoints after OAD in the MCA, ICA, and VA than after sham touch (all p<0.001). Although baseline PSV in the MCA measured before treatment was different between treatment interventions (p=0.01), no difference was found between interventions at any post-treatment time point (all p>0.59). Changes in PSV in the ICA and VA and for HR and BP did not depend on treatment intervention (p>0.06). Conclusion Increases in EDV occurred in major cranial arteries after OAD but not after sham touch, indicating that OAD improves blood flow to the brain. The exact mechanism of this increase is unknown; however, it can be explained by either parasympathetic stimulation through the secretion of vasodilating neurotransmitters or by a decrease in external tissue pressure on ICA and VA, with the resulting flow causing further dilation in the MCA.

scholarly journals Pulsed-wave doppler ultrasound in canine reproductive system – Part 1: technical aspects

2021 ◽  
Vol 10 (5) ◽  
pp. e52510515348
Author(s):  
Camila Franco de Carvalho ◽  
Jéssica Ribeiro Magalhães ◽  
Andreia Moreira Martins ◽  
Kyrla Cartynalle das Dores Silva Guimarães ◽  
Reiner Silveira de Moraes ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Reproductive System ◽  
Pulse Repetition Frequency ◽  
Power Doppler ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Technical Aspects ◽  
Hemodynamic Pattern ◽  
Diastolic Velocity ◽  
Pulsed Wave Doppler

The purpose of this article is to review the literature on the essential technical aspects of implementing the pulsed Doppler, as part of the teachings to their use in the diagnosis of changes in the canine reproductive system. A narrative review was carried out, using scientific articles, monographs, theses and dissertations published and available in online databases: Periodical Capes (Coordination for the Improvement of Higher Education Personnel), SciELO (Scientific Electronic Library Online) and Google Scholar, in addition to specific books on the topic. Two-dimensional ultrasound has been widely used in medicine since 1942, leading to advancements in disease identification and subsequent prognosis. In terms of vascular assessment, Doppler ultrasound is used to evaluate the blood flow inside the vessel, its direction, and hemodynamic pattern. Among all types of Doppler ultrasound, the Color Doppler (CD), Power Doppler (PD), and the Pulsed-wave Doppler (PW) are commonly used in the identification of abnormalities through ultrasound flow imaging and the analysis of hemodynamic indices: peak systolic velocity (PSV), end diastolic velocity (EDV), resistance index (RI), and pulsatility index (PI). To accurately estimate these hemodynamic indices, however, it is essential to know the technical adjustments and parameters such as the pulse repetition frequency (PRF), size of the sample volume (Gate), angle of insonation, gain, baseline, and wall filter, which need to be corrected to avoid technician derive artifacts such as aliasing, signal absence, and mirror imaging. In medicine, the use of Doppler Mode in reproductive functions is already well established, but its use in veterinary medicine is still a subject of recent studies.

scholarly journals Post-exercise pulsatility index indicates treatment effects in peripheral arterial occlusive disease (PAOD)

2021 ◽  
Author(s):  
Andrej Udelnow ◽  
Maria Hawemann ◽  
Ivo Buschmann ◽  
Frank Meyer ◽  
Zuhir Halloul
Keyword(s):  
Repeated Measures ◽  
Pulsatility Index ◽  
Treatment Effects ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Arterial Tree ◽  
Post Exercise ◽  
Diastolic Velocity ◽  
Before And After ◽  
Healthy Persons

Summary Background Hypothesis: Post-exercise measurements better discriminate PAOD-patients from healthy persons and they more sensitively detect hemodynamic improvements after treatment procedures than resting measurements. Methods A total of 19 healthy volunteers and 23 consecutive PAOD-patients underwent measurements of peak systolic velocity (PSV), end-diastolic velocity (EDV), minimal diastolic velocity (MDV), time-averaged maximum velocities (TAMAX), resistance index (RI) and pulsatility index (PI) before and after a standard exercise test (at 1, 2, 3, 4 and 5 min) before and after treatment (incl. epidemiological data, PAOD risk factors and comorbidities). Results In resting values, healthy persons and PAOD-patients did not differ significantly in any of the hemodynamic parameters. PSV increased after treatment in PAOD-patients by 5 cm/s (paired t‑test, p: 0.025); however, when the amplitude of autoregulatory changes related to the resting values were calculated, PAOD-patients showed clearly less hemodynamic changes after exercise than healthy persons (p: 0.04; 0.002; <0.001 for PSV, TAMAX and PI, resp.). The time course after exercise was compared by repeated measures of ANOVA. Healthy persons differed significantly in PI, RI and PSV from PAOD patients before and after treatment (p<0.001 each). The PAOD-patients revealed a significantly improved PI after treatment (p: 0.042). The only factor contributing significantly to PI independently from grouping was direct arterial vascularization as compared to discontinuous effects by an obstructed arterial tree. Conclusion Healthy persons cannot be well differentiated from PAOD-patients solely by hemodynamics at rest but by characteristic changes after standard exercise. Treatment effects are reflected by higher PI-values after exercise.

195 Are the Spectral Doppler Indices of the Ovarian Arteries Predictive of Ovulatory Responses and Embryo Yields in Superovulated Ewes?

2018 ◽  
Vol 30 (1) ◽  
pp. 238
Author(s):  
M. E. F. Oliveira ◽  
Y. Tarasevych ◽  
W. R. R. Vicente ◽  
P. M. Bartlewski
Keyword(s):  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Ovarian Response ◽  
Embryo Viability ◽  
Mean Velocity ◽  
Ovarian Artery ◽  
Diastolic Velocity ◽  
Spectral Doppler ◽  
Left And Right ◽  
Doppler Indices

Increased uterine and ovarian blood flow seems to be related to the effectiveness of ovarian response to hormonal superstimulation in mares (Witt et al. 2012 Theriogenology 77, 1406-1414). Similar studies do not exist for sheep. Nineteen Santa Inês ewes were subjected to a 9-day CIDR® priming and superovulatory (SOV) treatment with 200 mg of porcine (p)FSH per ewe given twice daily for 4 consecutive days in decreasing doses and initiated 6 days after CIDR® insertion. Ten ewes received an IM injection of oestradiol benzoate (EB, 350 μg) at the time of CIDR® insertion (group E); the remaining animals served as controls (group C). The ewes were placed in a pen with rams for 3 days after CIDR® removal. The embryos were recovered surgically 6 days after the CIDR® removal. Transrectal ultrasonographic examinations (Doppler mode) using MyLab VET 30 scanner (Esaote, Genoa, Italy) equipped with a linear-array (6- to 8-MHz) transducer were performed once a day throughout the SOV treatment (Days 1 to 4) to determine the velocimetric indices of the left and right ovarian arteries: flow velocity integral (FVI); peak systolic velocity (SVp); mean velocity (Vm); end-diastolic velocity (EDV); vascular resistance index [RI = (SVp – EDV)/SVp]; and pulsatility index [PI = (SVp – EDV)/Vm]. All spectral data were obtained from a longitudinal subovarian segment of the ovarian artery using a gate ranging from 2 to 3 mm (~two-thirds of the vessel’s diameter) and insonation angle ≤60°. There were no differences (P > 0.05) in ovarian responses and embryo yields/quality between left and right ovaries/uterine horns flashed or between EB-treated and control ewes. Mean EDV and Vm were greater (P < 0.05) in group C compared with group E on Days 1 and 2, and mean Vp was greater (P < 0.05) in group C ewes on Day 3 of the SOV treatment. In group E, there were 5 significant correlations between the spectral Doppler indices (RI, PI, and EDV) of the ovarian arteries recorded on Days 2 and 4 and SOV responses (numbers of degenerated embryos, unfertilized eggs, and luteinized unovulated follicles characterised by a lack of ovulatory stigmata). In group C, 7 significant correlations were found between Vp, EDV, Vm, and RI on Days 1, 2, and 3 and numbers/percentages of degenerated embryos, numbers of prematurely regressed luteal structures (pale, ≤5 mm in diameter), and embryo viability rates (percentage of transferrable quality embryos). When ultrasonographic and SOV data were analysed separately for the left and right ovarian artery/uterine horn, multiple significant correlations were found between the velocimetric indices and SOV responses but they varied among days, the 2 ovaries, and the 2 groups of animals studied. These results may be interpreted to suggest that intrinsic gonadal factors remain a significant barrier precluding the prediction of SOV outcomes from haemodynamic changes in ovine ovarian arteries. Velocimetric indices determined in the ovarian arteries appear to have limited prognostic value during the application of different SOV protocols in ewes.

scholarly journals 298 Effects of parity on late gestational uterine blood flow and hemodynamics in beef cattle

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 137-138
Author(s):  
Allison M Meyer ◽  
Natalie B Duncan ◽  
Katy S Stoecklein ◽  
Emma L Stephenson
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Birth Weight ◽  
Pulsatility Index ◽  
Uterine Artery ◽  
Color Doppler ◽  
Peak Systolic Velocity ◽  
Late Gestation ◽  
Artery Blood Flow ◽  
Diastolic Velocity

Abstract To determine parity effects on late gestational uteroplacental blood flow, uterine artery hemodynamics were measured in 13 primiparous and 11 multiparous (parity 3 and 4) non-lactating, fall-calving crossbred females beginning 109 d prepartum. Females were nutritionally managed as one group to meet or exceed nutrient requirements. Transrectal color Doppler ultrasonography of the both uterine arteries was conducted 3 to 6 times per female across late gestation, ending at approximately 20 d prepartum. Data were analyzed with parity (primiparous vs. multiparous), day prior to calving, and their interaction in the model; day was a repeated effect. Dam BW was greater (P &lt; 0.001) for multiparous than primiparous females, and increased (P = 0.004) as gestation progressed. Calf birth weight was unaffected (P = 0.87) by parity. The parity x day interaction tended to affect (P = 0.06) ipsilateral uterine artery blood flow (L/min), where multiparous cows had a greater increase per day. Total and contralateral uterine artery blood flow were unaffected (P ≥ 0.11) by parity, but increased (P &lt; 0.001) with day of gestation. When expressed relative to dam BW, total and contralateral blood flow were greater (P ≤ 0.04) in primiparous than multiparous females; ipsilateral blood flow was unaffected (P ≥ 0.13) by parity, however. Ipsilateral pulsatility index and both resistance indices were unaffected (P ≥ 0.28) by parity and day, but day tended to affect (P = 0.07) contralateral pulsatility index. Parity did not affect (P ≥ 0.11) cross-sectional area, mean velocity, peak systolic velocity, and end diastolic velocity of either uterine artery, but all increased (P &lt; 0.001) as gestation progressed. Heart rate was greater (P = 0.03) in primiparous than multiparous females. Data suggest that uterine artery blood flow and heart rate may be altered in primiparous females, even when birth weight is unaffected by parity.

Intratumoral blood flow in cervical cancer as assessed by transvaginal color doppler ultrasonography: Correlation with tumor characteristics

2003 ◽  
Vol 13 (4) ◽  
pp. 510-514 ◽  
Author(s):  
J. L. Alcázar ◽  
G. Castillo ◽  
M. Jurado ◽  
G. LÓPEZ-GARCÍA
Keyword(s):  
Cervical Cancer ◽  
Blood Flow ◽  
Doppler Ultrasonography ◽  
Color Doppler ◽  
Resistance Index ◽  
Color Doppler Ultrasonography ◽  
Advanced Stage ◽  
Histologic Type ◽  
Subjective Impression ◽  
Poorly Differentiated

The objective of this study was to evaluate whether intratumoral blood flow as assessed by transvaginal color Doppler ultrasonography (TVCD) correlates with some tumor features in cervical cancer. Clinical, sonographic, and histologic data on 49 women (mean age: 50.3 years, range: 25–85 years) diagnosed as having a carcinoma from the uterine cervix were reviewed. Intratumoral blood flow was assessed by TVCD in all cases. Subjective impression of the amount of flow (scanty, moderate, or abundant) as well as the lowest resistance index (RI) and highest peak systolic velocity (PSV, cm/s) were used for analysis. These data were correlated with some tumoral features such as histologic type, histologic grade, tumor volume, and tumor stage. Intratumoral blood flow was found in all cases. Abundant blood flow was found more frequently in squamous carcinoma, moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.0001). Significantly lower RI was found in moderately or poorly differentiated tumors and advanced stage tumors (P < 0.01) and significantly higher PSV was found in moderately or poorly differentiated tumors, tumors with larger volume, and advanced stage tumors (P < 0.01). No correlation was found between RI and PSV and histologic type. Our data indicate that intratumoral blood flow as assessed by TVCD correlates well with some tumor features in cervical cancer.

Sign in / Sign up

Export Citation Format

Share Document