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  • 1
    Electronic Resource
    Electronic Resource
    Octreotide treatment in patients with necrotizing pancreatitis and pulmonary failure (1996)
    Springer
    Intensive care medicine 22 (1996), S. 909-915 
    Details
    ISSN: 1432-1238
    Keywords: Key words Acute pancreatitis ; Necrotizing pancreatitis ; Octreotide ; Treatment ; Systemic complications ; SIRS ; ARDS ; Circulatory shock
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract   Objective: To determine the efficiency of intravenous infusion of octreotide in the treatment of patients with severe pancreatitis and pulmonary failure. Design: Prospective, case–control study. Setting: Intensive care unit of a university hospital. Patients: Treatment group: 39 patients with necrotizing pancreatitis were selected for the study. In all, pulmonary failure developed under conservative treatment and surgical intervention had been necessary because of local (abscess, necrosis) or systemic (systemic inflammatory response syndrome) complications. The outcome was prospectively followed up until death or discharge from the hospital. Control group: 54 case–control matched patients with acute necrotizing pancreatitis and pulmonary failure, who had not been treated with octreotide. Intervention: Each patient in the treatment group received 100 μg intravenous octreotide three times daily for 10 days, in addition to the standard intensive care therapy. Results: The groups (octreotide group, control group) were highly comparable with regard to age (mean age: 54, 51 years), sex, severity of illness (Acute Physiology and Chronic Health Evaluation II score: 27, 27), etiology of pancreatitis, and pretreatment at the time of admission to the intensive care unit. There was no difference in the development of renal, hepatic, gastrointestinal, hemostatic, neurologic, or local complications. But the frequency of the adult respiratory distress syndrome (18 vs 40%; p〈0.05) and circulatory shock (51 vs 87%; p〈0.05) was significantly lower in the treatment group. Furthermore, mortality was 26% (10 of 39 patients) in the octreotide group and 61% (33 of 54 patients) in the control group (p〈0.01). Conclusion: The results of our case–control study showed a beneficial effect of octreotide in patients with severe necrotizing pancreatitis and pulmonary failure. Based on these data, a prospective, double-blind, placebo-controlled study should be performed to evaluate these results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340050186
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  • 2
    Electronic Resource
    Electronic Resource
    Octreotide treatment in patients with necrotizing pancreatitis and pulmonary failure (1996)
    Springer
    Intensive care medicine 22 (1996), S. 909-915 
    Details
    ISSN: 1432-1238
    Keywords: Acute pancreatitis ; Necrotizing pancreatitis ; Octreotide ; Treatment ; Systemic complications ; SIRS ; ARDS ; Circulatory shock
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To determine the efficiency of intravenous infusion of octreotide in the treatment of patients with severe pancreatitis and pulmonary failure. Design Prospective, case-control study. Setting Intensive care unit of a university hospital. Patients Treatment group: 39 patients with necrotizing pancreatitis were selected for the study. In all, pulmonary failure developed under conservative treatment and surgical intervention had been necessary because of local (abscess, necrosis) or systemic (systemic inflammatory response syndrome) complications. The outcome was prospectively followed up until death or discharge from the hospital. Control group: 54 case-control matched patients with acute necrotizing pancreatitis and pulmonary failure, who had not been treated with octreotide. Intervention Each patient in the treatment group received 100 μg intravenous octreotide three times daily for 10 days, in addition to the standard intensive care therapy. Results The groups (octreotide group, control group) were highly comparable with regard to age (mean age: 54, 51 years), sex, severity of illness (Acute Physiology and Chronic Health Evaluation II score: 27, 27), etiology of pancreatitis, and pretreatment at the time of admission to the intensive care unit. There was no difference in the development of renal, hepatic, gastrointestinal, hemostatic, neurologic, or local complications. But the frequency of the adult respiratory distress syndrome (18 vs 40%;p〈0.05) and circulatory shock (51 vs 87%;p〈0.05) was significantly lower in the treatment group. Furthermore, mortality was 26% (10 of 39 patients) in the octreotide group and 61% (33 of 54 patients) in the control group (p〈0.01). Conclusion The results of our case-control study showed a beneficial effect of octreotide in patients with severe necrotizing pancreatitis and pulmonary failure. Based on these data, a prospective, double-blind, placebo-controlled study should be performed to evaluate these results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02044115
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  • 3
    Electronic Resource
    Electronic Resource
    Standardized uptake values of fluorine-18 fluorodeoxyglucose: the value of different normalization orocedures (1996)
    Springer
    European journal of nuclear medicine 23 (1996), S. 571-574 
    Details
    ISSN: 1619-7089
    Keywords: Positron emission tomography ; Fluorine-18 fluorodeoxyglucose ; Standardized uptake value ; Semiquantitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract While the evident advantages of absolute metabolic rate determinations cannot be equalled by static image analysis of fluorine-18 fluorodeoxyglucose positron emission tomographic (FDG PET) studies, various algorithms for the normalization of static FDG uptake values have been proposed. This study was performed to compare different normalization procedures in terms of dependency on individual patient characteristics. Standardized FDG uptake values (SUVs) were calculated for liver and lung tissue in 126 patients studied with wholebody FDG PET. Uptake values were normalized for total body weight, lean body mass and body surface area. Ranges, means, medians, standard deviations and variation coefficients of these SUV parameters were calculated and their interdependency with total body weight, lean body mass, body surface area, patient height and blood sugar levels was calculated by means of regression analysis. Standardized FDG uptake values normalized for body surface area were clearly superior to SUV parameters normalized. for total body weight or lean body mass. Variation and correlation coefficients of body surface area-normalized uptake values were minimal when compared with SUV parameters derived from the other normalization procedures. Normalization for total body weight resulted in uptake values still dependent on body weight and blood sugar levels, while normalization for lean body mass did not eliminate the positive correlation with lean body mass and patient height. It is concluded that normalization of FDG uptake values for body surface area is less dependent on the individual patient characteristics than are FDG uptake values normalized for other parameters, and therefore appears to be preferable for FDG PET studies in oncology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00833394
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  • 4
    Electronic Resource
    Electronic Resource
    Comparison of fluorine-18 fluorodeoxyglucose positron emission tomography and technetium-99m methoxyisobutylisonitrile scintimammography in the detection of breast tumours (1997)
    Springer
    European journal of nuclear medicine 24 (1997), S. 1138-1145 
    Details
    ISSN: 1619-7089
    Keywords: Fluorine-18 fluorodeoxyglucose ; Positron emission tomography ; Technetium-99m methoxyisobutylisonitrile ; Scintimammography ; Breast cancer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study was to compare, in breast cancer patients, the diagnostic accuracy of positron emission tomography (PET) using fluorine-18 fluorodeoxyglucose (FDG) and scintimammography (SMM) using technetium-99m methoxyisobutylisonitrile (MIBI). A total of 20 patients (40 breasts with 22 lesions) were evaluated serially with MIBI and, on the following day, with FDG. For SMM, planar and single-photon emission tomography imaging in the prone position was performed starting at 10 min following the injection of MIBI (740 MBq). For PET, scans were acquired 45–60 min after the injection of FDG (370 MBq) and attentuation correction was performed following transmission scans. Results from SMM and PET were subsequently compared with the histopathology results. True-positive results were obtained in 12/13 primary breast cancers (mean diameter=29 mm, range 8–53 mm) with both FDG and MIBI. False-negative results were obtained in two local recurrences (diameter 〈9 mm) with both FDG and MIBI. In benign disease, FDG and MIBI did not localize three fibrocystic lesions, two fibroadenomas and one inflammatory lesion (true-negative), but both localized one fibroadenoma (false-positive). Collectively, the results demonstrate a sensitivity of 92%, and a specificity of 86%, for primary breast cancer regardless of whether FDG or MIBI was used. In contrast to MIBI scintigraphy, FDG PET scored the axillae correctly as either positive (metastatic disease) or negative (no axillary disease) in all 12 patients. The tumour/non-tumour ratio for MIBI was 1.97 (range 1.43–3.1). The mean standard uptake value (SUV) for FDG uptake was 2.57 (range 0.3–6.2). The diagnostic accuracy of SMM was equivalent to that of FDG PET for the detection of primary breast cancer. For the detection of in situ lymph node metastases of the axilla, FDG seems to be more sensitive than99mTc-MIBI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01254246
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  • 5
    Electronic Resource
    Electronic Resource
    Optimal scan time for fluorine-18 fluorodeoxyglucose positron emission tomography in breast cancer (1999)
    Springer
    European journal of nuclear medicine 26 (1999), S. 226-230 
    Details
    ISSN: 1619-7089
    Keywords: Key words: Breast cancer ; Fluorine-18 fluorodeoxyglucose ; Positron emission tomography ; Tumour-to-non-tumour ratio ; Contrast parameters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Fluorine-18 fluorodeoxyglucose positron emission tomography (FDG PET) has proven useful in the differentiation of various tumour entities, including breast cancer. In patients with primary breast cancer we performed a 3-h imaging protocol to examine possible improvements in tumour detectability and image contrast. Twenty-nine patients with primary breast cancer with a diameter of ≥2 cm that was demonstrated to be malignant by biopsy or surgery were injected with 370–740 MBq 18F-FDG and scanned in the prone position. Data were acquired 0–40 min, 1.5 h and 3.0 h after injection. After correction for measured attenuation, decay and scatter and iterative reconstruction, standardised uptake values (SUVs) and tumour-to-non-tumour and tumour-to-organ ratios were calculated. Visual analysis was performed using transverse, sagittal and coronal slices as well as 3D reprojection images. Tumour-to-non-tumour and tumour-to-organ ratios were significantly higher for the 3-h images than for the 1.5-h images. SUVs did not increase to the same extent. Lesion detectability was 83% in 1.5-h images compared to 93% in 3-h images. We conclude that tumour contrast in breast cancer is improved by starting the PET acquisition at 3 h p.i. rather than at 1.5 h p.i.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002590050381
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  • 6
    Electronic Resource
    Electronic Resource
    Detection of somatostatin receptor-positive tumours using the new 99mTc-tricine-HYNIC-d-Phe1-Tyr3-octreotide: first results in patients and comparison with 111In-DTPA-d-Phe1-octreotide (2000)
    Springer
    European journal of nuclear medicine 27 (2000), S. 628-637 
    Details
    ISSN: 1619-7089
    Keywords: Key words: 99mTc-tricine-HYNIC-d-Phe1-Tyr3-octreotide ; 111In-DTPA-d-Phe1-octreotide ; Receptor scintigraphy ; Octreotide ; Somatostatin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Indium-111 labelledDTPA-d-Phe1-octreotide (DTPA-OC, OctreoScan) has been introduced into clinical routine for the detection of somatostatin receptor (SSTR)-positive tumours, which are predominantly of neuroendocrine origin. Potential further applications in other SSTR-positive cancers (e.g. small cell lung cancer, breast cancer, melanoma) have been limited mainly by the restricted availability and the high radionuclide costs. Previous attempts to introduce technetium-99m labelled analogues of octreotide have not been very successful in terms of the labelling procedure, in vivo biodistribution and/or tumour detection capabilities. The aim of this study was to assess the performance of the new 99mTc-labelled analogue HYNIC-d-Phe1-Tyr3 -octreotide (HYNIC-TOC), using tricine as co-ligand, for the detection of SSTR-positive tumours in patients in comparison with 111In-DTPA-OC. Overall, 13 patients were examined using 99mTc-tricine-HYNIC-TOC. Twelve patients had proven SSTR-positive tumours, while one patient presented with an SSTR-negative tumour. In 9 of the 13 patients both tracers (99mTc-tricine-HYNIC-TOC and 111In-DTPA-OC) were used. Serial whole-body scans, spot views and/or single-photon emission tomography studies were performed. Images were qualitatively and semi-quantitatively (ROI analyses) evaluated. The biodistribution of 99mTc-tricine-HYNIC-TOC in patients showed high physiological uptake in kidneys, moderate uptake in liver and spleen and little uptake in the gut. The tracer showed predominantly renal and negligible hepatobiliary excretion. Known SSTR-positive tumour sites showed rapid and intense tracer accumulation. 99mTc-tricine-HYNIC-TOC demonstrated rapid tissue uptake within the first hour after injec- tion and had basically no significant clearance (〈20%) from normal or tumour tissue thereafter. In contrast, 111In-DTPA-OC showed continuous clearance from normal tissues as well as renal and very little hepatobiliary excretion. Nevertheless, the patterns of accumulation of 99mTc-tricine-HYNIC-TOC in tumours and normal organs were comparable to those of 111In-DTPA-OC. A lesion-by-lesion comparison showed comparable tumour detection capabilities in intrahepatic tumour sites and superior capabilities of 99mTc-tricine-HYNIC-TOC in respect of extrahepatic lesions. In conclusion, 99mTc-tricine-HYNIC-TOC shows promise as a tracer for SSTR imaging, given its favourable clinical characteristics (specific and high receptor affinity, good biodistribution, renal excretion, low radiation exposure, high imaging quality, on-demand availability) and cost-effectiveness. 99mTc-tricine-HYNIC-TOC allows earlier diagnosis (10 min–4 h) compared with 111In-DTPA-OC (4–24 h).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002590050556
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