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  • 1
    Electronic Resource
    Electronic Resource
    Portal vein velocities measured by ultrasound: usefulness for evaluating shunt functioning following TIPS placement and TIPS revision (1998)
    Springer
    Abdominal imaging 23 (1998), S. 511-514 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Portal vein velocities—TIPS—Ultrasound—Shunt.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: To assess the usefulness of following portal vein velocities by Doppler ultrasound in evaluating shunt functioning after transhepatic intrajugular portosystemic shunt (TIPS) placement and revision. Methods: We retrospectively analyzed 39 patients who underwent a TIPS procedure in the preceding 4 years. Portal vein (PV) velocities were measured by Doppler ultrasound before and after TIPS insertion and revision and were correlated with portosystemic gradients (PSG) measured at angiography. Results: Mean PV velocities increased from 18 ± 6 cm/s before TIPS placement to 50 ± 21 cm/s (p 〈 0.001) after TIPS placement, with corresponding decrease of mean PSG from 20 ± 6 to 8 ± 3 mmHg (p 〈 0.001). Mean PV velocities significantly increased from 24 ± 6 to 43 ± 14 cm/s after TIPS revision (p 〈 0.02), with decrease of PSG from 17 ± 6 to 9 ± 5 mmHg (p 〈 0.05). A significant correlation was found between all PV velocities and their corresponding PSG (Spearman r 〈 0.61, p 〈 0.001). Conclusion: PV velocities significantly correlate with changes in PSG. Following portal vein velocities by ultrasound is useful for early evaluation of shunt functioning following TIPS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900389
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  • 2
    Electronic Resource
    Electronic Resource
    Cryotherapy of metastatic carcinoid tumors (1998)
    Springer
    Abdominal imaging 23 (1998), S. 314-317 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Cryotherapy—Carcinoid—Liver neoplasms—Liver neoplasms, US.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To describe the use of hepatic cryotherapy to treat patients with symptomatic carcinoid metastates. Methods: Hepatic cryotherapy was performed on five patients with carcinoid syndrome resulting from metastatic carcinoid tumors. Intraoperative ultrasound was used to guide the cryotherapy and to assess the adequacy of freezing. Results: All five patients had relief of the carcinoid syndrome after treatment. In four of the five patients, the relief was prolonged (〉3 months); in one patient, the relief of symptoms was transient (2 months). Four of five patients had a transient reduction in hormonal tumor markers (the fifth patient did not have hormonal-level follow-up). During a follow-up period of 2.5 years, four of the five patients died. The 6-month survival rate was 80%, the 1-year survival rate was 60%, the 2-year survival rate was 40%, and the 2.5-year survival was 20%. One patient is alive 30 months after treatment. Conclusion: Hepatic cryotherapy can provide symptomatic relief for patients with hepatic metastates producing the carcinoid syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900348
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Liver transplant rejection: value of hepatic vein Doppler waveform analysis (1998)
    Springer
    Abdominal imaging 23 (1998), S. 427-430 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Hepatic veins, US—Liver, transplantation—Liver, US.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To determine whether abnormal hepatic vein Doppler tracings can be used to predict liver transplantation rejection. Methods: A total of 158 hepatic vein Doppler tracings were obtained on 93 postliver transplant patients (63 patients without rejection and 30 patients with biopsy-proven rejection). Hepatic vein Doppler tracings were scored according to an established grading system (0 = normal triphasic waveform, 1 = dampened waveform, with loss of flow reversal, 2 = completely flat waveform). The hepatic vein Doppler tracings were then correlated with biopsy findings. Results: In the group of 63 patients without rejection, 124 Doppler examinations were performed and graded as follows: 0 = 87 (70%), 1 = 31 (25%), and 2 = 6 (5%). In the group of 30 patients with biopsy-proven rejection, 34 Doppler examinations were performed and graded as follows: 0 = 16 (47%), 1 = 14 (41%), and 2 = 4 (12%). The sensitivity of abnormal hepatic vein Doppler tracings for detection of rejection was 53% and the specificity was 70%. The positive predictive value of an abnormal hepatic vein Doppler tracing was 33% and the negative predictive value of a normal Doppler tracing was 84%. Conclusions: Abnormal hepatic vein Doppler tracings are observed in patients with and without liver transplant rejection. Abnormal tracings cannot be used to predict liver transplant rejection.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900373
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Magnetic resonance appearance in a case of lipoblastomatosis (1996)
    Springer
    Pediatric surgery international 11 (1996), S. 286-287 
    Details
    ISSN: 1437-9813
    Keywords: Lipoblastoma ; Lipoblastomatosis ; Magnetic resonance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Lipoblastoma-lipoblastomatosis represents a rare, benign tumorous proliferation of adipocytes and their mesenchymal precursor cells. Seen almost exclusively in early childhood, it should be considered in the differential diagnosis of any rapidly expanding soft-tissue mass. We present a case of lipoblastomatosis and its magnetic resonance appearance, which has not been previously described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00178442
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    MRI features in de Quervain’s tenosynovitis of the wrist (1996)
    Springer
    Skeletal radiology 25 (1996), S. 63-65 
    Details
    ISSN: 1432-2161
    Keywords: Key words De Quervain’s ; Tenosynovitis ; Wrist ; MRI features ; Tendon thickness ; Edema
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  De Quervain’s stenosing tenosynovitis of the first dorsal extensor component is traditionally diagnosed clinically but may be encountered when performing MRI of the wrist. A retrospective review of wrist MR images was performed in cases where the diagnosis of de Quervain’s synovitis was sugggested (n=5). Imaging findings were correlated with clinical findings in four cases and with wrist arthroscopy in one case. Increased thickness of the extensor pollicus brevis and abductor pollicis longus tendons was the most reliable finding on MRI, being present in all cases. Peritendinous edema was also a reliable finding. Surrounding subcutaneous edema and increased intratendinous signal were less reliable findings in confirmed cases of de Quervain’s disease. De Quervain’s tenosynovitis may be encountered when performing MRI of the wrist. Increased tendon thickness and peritendinous edema are the most reliable imaging findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002560050033
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    Paper (German National Licenses)
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