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NUO 2702 Power doppler ultrasound with echo contrast agent in the evaluation of normal cortical vascularity in renal trasplant
NEPHRO-UROLOGY
NU02702
NUO2704
POWER DOPPLER ULTRASOUND WITH ECHO CONTRAST AGENT IN THE EVALUATION OF NORMAL CORTICAL VASCULARITY TN RENAt TRASPLANT Raffaela Poe&G, Fabio Manganaro, Albert0 Di Filippo. Federica Trenta, Luigi Novelli, Francesco M. Drudi. Elsa Iannicelli. Department .of Radiology, II Chair, “La Sapienza” University, Rome, Italy.
CONTRAST MEDIUM ENHANCEMENT IN PROSTATIC PATBOLOGY. PRELIMINARY EXPERIENCE Libero Barozzi, Pietro Pavlica, Ilario Men&i Department of Radiology, Hospital MMalpighi, Bologna, Italy. Istituto Leonardo Da Vinci, Firenze, Italy
Aim of this study was to demostrate the role of power Doppler US with contrast agent in the arterioles in visualization of interlobular normally functioning renal allografts. MATERIALS AND METHODS From OCtober 1996 to Jannuary 1997, 20 palienls were studied by Power doppler US before and after slow ir!jection ( 70-120 set) of 10 cc Echo contrast agent ( Levovist SHU-508-A. concentration 300 111 g I 111I ) RESULTS Before contrast agent Power Doppler US permitted a correct evaluation of the interlobular arterioles after injection of US i n all patients. however a better view. contrast agent, we obtained of the peripheral part of these especially arterioles. CONCLUSION The use of US contrast agent in the evaluation 01 interlobular arterioles can improve the view of these arterioles in their full length.
s55
PURPOSE. Few are the reported experienceson the clinical usefulness of the new US contrastmedia. The aim of the studywas to analysea group of patients with prostatic pathology, all confirmed by biopsy. MATERIAL AND METHODS. The studywas performed prospectivelyin 2Opatientswho complained lower urinary tract symptoms.The final diagnosis was: prostatic carcinoma in 13, chronic prostatitis in 3, BPH in 3 and 1 prostatic abscess.An EsaoteEidos color-Doppler US machine @nova, Italy) was employedwith a biplane endorectal probe of 5 MHz frequency. Color Doppler (CD) and Power-Doppler (PwD) was utilized with a constant scanning setting: PRF 350 Hz and Color Gain 5. After the basal scanning, in aI1 patients an intravenousinjection of contrast medium (Lzvovist) at the concentration of 300 mg/ml was performed and the samescans repeated. RESULTS. In patients with carcinoma mild or evident contrast enhancementwas observedin 11113patients at CD and in lo/13 at PwD. In chronic prostatitis contrast enhancementwas present in 2/3 at CD and in 3/3 at PwD. No variation was observedin 3 pts with BPH. In the only one pt with abscessthere was an evident contrast enhancementaround the intraglandular collection. CONCLUSION. Prostatic lesions show a good contrast enhancement at CD and PwD and this was clearly observedin carcinoma and chronic prostatitis. In our experience we havenot obtained an evident clinical utility, becausethe contrast medium did not improve sigticativelly the diagnostic accuracy.There are nv more extensivedinical studiesbefore we can define the role of contrast media in ultrasonography.
NU02703
NU02901
QUANTITATION OF ENHANCED TRANSRECTAL ULTRAOSOUND OF THE PROSTATE USING THE ECHO-ENHANCING AGENT BRl MJK. Blomle , D.O. Cos rove, V. Jayamm, RJ.Eckersley, ~Desouza, f .waxman Hammersmlth Hospital, London, UK
DETECTION OF THE ADRENAL GLANDS BY ENDOSCOPIC AND TRANSABDOMINAL ULTRASOUND Christouh F. Dietrich, Till Wehrmann, Christine Hoffmann, Gtinter Herrmann, Wolfgang F. Caspq, Hans Seifert Dept. Internal Medicine II, UniversityHospital, Frankfurt, Germany
Aim: To investigate formal auantitation of enhanced color Power Dop Icr Jhrasound of the prostate. Patients anFl Methods: To date we have studied 6 men with untreated prostatic carcinoma, 1 with trcatcd carcinoma and 1 with beni n prostatic hypertrophy using 2 out of 4 intravenous d oses (0.3, 0.6, 1.2 or 2.4 ml of Smg/ml) of BRI (Bracco SpA, Italy). Color Power Do pler ultrasound (US) has been performed on a single ax1‘3 section through the prostate using a tmnsrectal probe and ultrasound system (Acuson XPlO, Acuson Inc). All studies have been performed using scanning parameters maintained as identical as possible, includin minimal color gain and transmit power settm s. 4 o the men have undergone additional dynamic ga&linium$hanced prostatic MR us2 an endorectal coil and the findings have been correlat Using a color videocnsiometric svstem which has been previbusly shown to accudly measure relative microbubble numbers, time-enhancement (TE) profiles have been constructed. Results: Well defined TE curves have been seen for all 16 i+ctions; the areas under these curves AUC) correlated with BRI dose (ti.82 AUC values can 6 e normalised by dividin by dose (nAU ). This value concurred with clinical prostatic cancer and 25000 in status %e.mg
The value of transabdominal (T&S) and endoscopic ultrasound (BUS) in detecting the adrenal glands is not yet established. Aim of the study was to evaluate whether these techniques can be routinely used to visualize the adrenal glands in patients without suspected adrenal pathology. Methods: TUS (3.5 MHz) was validated by examination of 10 corpses and was oerformed in 80 healthy subjects(HS). EUS (7.5 MHz) was performed in 154 consecutivepakent; referred for different rea&ns in order to visualize the left adrenal gland. Additionally, we examined 20 patients in order to visualize the right adrenal gland by EUS as well. Results:Both adrenal glands were correctly identified in all of the 10 corpsesin situ. In HS, the right adrenal gland was visualized by TUS in 79/80 (99%) and the left adrenal gland in 55/80 (69%), respectively. EUS allowed detection of the left adrenal gland in 151/154 (98%). In three patients EUS failed because of grossly distorted anatomy. In 6/20 patients we were able to detect also the right adrenal gland by EUS. Conclusion: Visualization of the right adrenal gland is possible in almost all casesby TUS, while its detection by EUS is successfulonly in some cases.The left gland is more diffkult to detectby TUS, while it can nearly always be seen using EUS. Therefore, a combined transabdominal and endoscopic ultrasonographic approach is useful for visualization of the adrenal glands and seemsto enable diagnosis of evensmall adrenal masses.
NU02702
NUO2704
POWER DOPPLER ULTRASOUND WITH ECHO CONTRAST AGENT IN THE EVALUATION OF NORMAL CORTICAL VASCULARITY TN RENAt TRASPLANT Raffaela Poe&G, Fabio Manganaro, Albert0 Di Filippo. Federica Trenta, Luigi Novelli, Francesco M. Drudi. Elsa Iannicelli. Department .of Radiology, II Chair, “La Sapienza” University, Rome, Italy.
CONTRAST MEDIUM ENHANCEMENT IN PROSTATIC PATBOLOGY. PRELIMINARY EXPERIENCE Libero Barozzi, Pietro Pavlica, Ilario Men&i Department of Radiology, Hospital MMalpighi, Bologna, Italy. Istituto Leonardo Da Vinci, Firenze, Italy
Aim of this study was to demostrate the role of power Doppler US with contrast agent in the arterioles in visualization of interlobular normally functioning renal allografts. MATERIALS AND METHODS From OCtober 1996 to Jannuary 1997, 20 palienls were studied by Power doppler US before and after slow ir!jection ( 70-120 set) of 10 cc Echo contrast agent ( Levovist SHU-508-A. concentration 300 111 g I 111I ) RESULTS Before contrast agent Power Doppler US permitted a correct evaluation of the interlobular arterioles after injection of US i n all patients. however a better view. contrast agent, we obtained of the peripheral part of these especially arterioles. CONCLUSION The use of US contrast agent in the evaluation 01 interlobular arterioles can improve the view of these arterioles in their full length.
s55
PURPOSE. Few are the reported experienceson the clinical usefulness of the new US contrastmedia. The aim of the studywas to analysea group of patients with prostatic pathology, all confirmed by biopsy. MATERIAL AND METHODS. The studywas performed prospectivelyin 2Opatientswho complained lower urinary tract symptoms.The final diagnosis was: prostatic carcinoma in 13, chronic prostatitis in 3, BPH in 3 and 1 prostatic abscess.An EsaoteEidos color-Doppler US machine @nova, Italy) was employedwith a biplane endorectal probe of 5 MHz frequency. Color Doppler (CD) and Power-Doppler (PwD) was utilized with a constant scanning setting: PRF 350 Hz and Color Gain 5. After the basal scanning, in aI1 patients an intravenousinjection of contrast medium (Lzvovist) at the concentration of 300 mg/ml was performed and the samescans repeated. RESULTS. In patients with carcinoma mild or evident contrast enhancementwas observedin 11113patients at CD and in lo/13 at PwD. In chronic prostatitis contrast enhancementwas present in 2/3 at CD and in 3/3 at PwD. No variation was observedin 3 pts with BPH. In the only one pt with abscessthere was an evident contrast enhancementaround the intraglandular collection. CONCLUSION. Prostatic lesions show a good contrast enhancement at CD and PwD and this was clearly observedin carcinoma and chronic prostatitis. In our experience we havenot obtained an evident clinical utility, becausethe contrast medium did not improve sigticativelly the diagnostic accuracy.There are nv more extensivedinical studiesbefore we can define the role of contrast media in ultrasonography.
NU02703
NU02901
QUANTITATION OF ENHANCED TRANSRECTAL ULTRAOSOUND OF THE PROSTATE USING THE ECHO-ENHANCING AGENT BRl MJK. Blomle , D.O. Cos rove, V. Jayamm, RJ.Eckersley, ~Desouza, f .waxman Hammersmlth Hospital, London, UK
DETECTION OF THE ADRENAL GLANDS BY ENDOSCOPIC AND TRANSABDOMINAL ULTRASOUND Christouh F. Dietrich, Till Wehrmann, Christine Hoffmann, Gtinter Herrmann, Wolfgang F. Caspq, Hans Seifert Dept. Internal Medicine II, UniversityHospital, Frankfurt, Germany
Aim: To investigate formal auantitation of enhanced color Power Dop Icr Jhrasound of the prostate. Patients anFl Methods: To date we have studied 6 men with untreated prostatic carcinoma, 1 with trcatcd carcinoma and 1 with beni n prostatic hypertrophy using 2 out of 4 intravenous d oses (0.3, 0.6, 1.2 or 2.4 ml of Smg/ml) of BRI (Bracco SpA, Italy). Color Power Do pler ultrasound (US) has been performed on a single ax1‘3 section through the prostate using a tmnsrectal probe and ultrasound system (Acuson XPlO, Acuson Inc). All studies have been performed using scanning parameters maintained as identical as possible, includin minimal color gain and transmit power settm s. 4 o the men have undergone additional dynamic ga&linium$hanced prostatic MR us2 an endorectal coil and the findings have been correlat Using a color videocnsiometric svstem which has been previbusly shown to accudly measure relative microbubble numbers, time-enhancement (TE) profiles have been constructed. Results: Well defined TE curves have been seen for all 16 i+ctions; the areas under these curves AUC) correlated with BRI dose (ti.82 AUC values can 6 e normalised by dividin by dose (nAU ). This value concurred with clinical prostatic cancer and 25000 in status %e.mg
The value of transabdominal (T&S) and endoscopic ultrasound (BUS) in detecting the adrenal glands is not yet established. Aim of the study was to evaluate whether these techniques can be routinely used to visualize the adrenal glands in patients without suspected adrenal pathology. Methods: TUS (3.5 MHz) was validated by examination of 10 corpses and was oerformed in 80 healthy subjects(HS). EUS (7.5 MHz) was performed in 154 consecutivepakent; referred for different rea&ns in order to visualize the left adrenal gland. Additionally, we examined 20 patients in order to visualize the right adrenal gland by EUS as well. Results:Both adrenal glands were correctly identified in all of the 10 corpsesin situ. In HS, the right adrenal gland was visualized by TUS in 79/80 (99%) and the left adrenal gland in 55/80 (69%), respectively. EUS allowed detection of the left adrenal gland in 151/154 (98%). In three patients EUS failed because of grossly distorted anatomy. In 6/20 patients we were able to detect also the right adrenal gland by EUS. Conclusion: Visualization of the right adrenal gland is possible in almost all casesby TUS, while its detection by EUS is successfulonly in some cases.The left gland is more diffkult to detectby TUS, while it can nearly always be seen using EUS. Therefore, a combined transabdominal and endoscopic ultrasonographic approach is useful for visualization of the adrenal glands and seemsto enable diagnosis of evensmall adrenal masses.