40 research outputs found
Diagnosis of hepatoma using grayscale and Doppler ultrasound in patients with chronic liver disease
No full textWasim A Memon, Zishan Haider, Mirza Amanullah Beg, Muhammad Idris, Tanveer-ul-Haq, Waseem Akhtar, Sidra IdrisRadiology Department, Aga Khan University Hospital, Karachi, Pakistan Every author contributed equally to the workObjective: To determine the diagnostic accuracy of liver ultrasound for the detection of hepatoma in chronic liver disease (CLD) patients by either taking histopathology or serum α-fetoprotein levels or a biphasic computed tomography (CT) scan (whichever is available) as the gold standard.Study design: Cross-sectional.Place and duration of study: Radiology Department, The Aga Khan University Hospital, Karachi, Pakistan, from January 2007 to January 2010.Methods: A total of 239 patients (156 males and 83 females) with clinical suspicion or surveillance of hepatoma in CLD referred to the radiology department for ultrasound evaluation followed by either liver biopsy and histopathology or serum α-fetoprotein level or biphasic CT scan.Results: The sensitivity of ultrasound for hepatoma detection in CLD was 65%, specificity was 85%, and accuracy was 70%, and positive predictive value and negative predictive value were 92% and 45%, respectively.Conclusion: Ultrasound is a relatively quick, safe, reasonably accurate, and noninvasive imaging modality for the detection of hepatoma in CLD and can be complemented with clinical assessment of screening high-risk patients.Keywords: hepatoma, ultrasound, radiology, chronic liver diseas
Far infrared studies of diatomic cubic crystals by dispersive Fourier transform spectroscopy
No full textThe far infrared optical properties and complex dielectric response functions of two alkali halide crystals (CsT and KI) and two III-V compound semiconductor crystals (InAs and InP) have been studied using the technique of dispersive Fourier transform spectroscopy. The values of the transverse optic and longitudinal optic phonon frequencies at wave vector q=0 determined from these results agree quite well with published values, and the dielectric functions were used to calculate the imaginary parts of the an harmonic self-energies (oj,V) of the q=0 transverse optic modes. These are the first reported measurements on Csl by dispersive Fourier transform spectroscopy, and reasonable agreement is obtained between the frequencies of measured features in (oj,V ) and published two-phonon frequencies. In the case of KI the present measurements have been made at a higher resolution than any reported previously, and they provide a sensitive test of the validity of various theoretical calculations available in publications. Also, in the case of KI some two-phonon difference bands have been observed and assigned in the, spectrum of (oj,V) for the first time. No measurements of the optical constants of InP in the far infrared region using this technique have been reported before, and, for both In Lambdas and InP, these are the first reported experimental determinations of the imaginary part of the frequency dependent damping function. A number of features in the spectra of (oj 'V ) for In Lambdas and InP are revealed and attributed to two-phonon decay processes with the aid of a critical point analysis based on published data for these materials. Since the performance of the dispersive reflection interferometer was limited by the specimen size a prototype focused beam interferometer was constructed, and its performance has been demonstrated by recording a water vapour absorption spectrum at a resolution of 2 cm using end mirrors 5mm in diameter.<p
Colovesical fistula: an unusual complication of prostatomegaly
No full textColovesical fistula as a sequela to long-term bladder outflow obstruction is to our knowledge a previously unreported complication. We report a case in which single stage colonic resection and anastomosis with bladder repair and transurethral resection of the prostate resolved the condition
Therapeutic efficacy of Dornier MPL 9000 for prevesical calculi as judged by efficiency quotient
No full textPurpose: To study the efficacy and safety of the Dornier MPL 9000 lithotripter in the treatment of prevesical calculi using real-time ultrasound monitoring and to see if efficacy is adequately judged by the efficiency quotient (EQ). Patients and Methods: Seventy-six patients underwent ultrasound-guided extracorporeal shockwave lithotripsy (SWL) for prevesical calculi over a period of 43 months. Their age ranged from 8 to 68 (mean 37.6) years, and the male:female ratio was 2.6:1. The size of the stones, measured in two dimensions, ranged from 4 to 25 mm (mean 9.3 mm) and 2 to 15 mm (mean 6.0 mm). No general or regional anesthesia or ureteral stents were used, and all patients were treated in the prone position. The EQ was calculated using the formula: Stone free (%) x 100/(100 + retreatment rate (%) + auxiliary procedures (%).Results: Seventy patients were stone free in a mean time of 15 +/- 14.11 days. The average number of shockwaves used was 2,831 +/- 1,612, and the average number of sessions per patient was 1.7. About 92% of the patients were rendered stone free using in situ SWL alone. No major complication was encountered, and none of the patients required an inpatient stay after SWL. The EQ was 65. Five patients with failed SWL subsequently were rendered stone free, four with salvage ureteroscopy and pneumatic lithotripsy and one with cystolitholapaxy for a symptomatic fragment in the bladder. One patient was lost to follow-up.Conclusion: In situ SWL is a safe and effective treatment for prevesical calculi. It should be used as a first-line treatment for most such stones. Efficiency can be assessed objectively by the EQ
Acute urinary retention: A primary manifestation of chronic lymphocytic leukemia and organ confined prostate cancer
No full textCandidal infections as a cause of recurrent uretero-ileal anastomotic dehiscence
No full textFungal infections are common in immunocompromised patients. The presentation is often subtle and therefore treatment is delayed. Uretero-ileal anastomotic dehiscence due to candidal infection has never been reported before. This case represents an uncommon but potentially life-threatening complication in reconstructive surgery; that is, anastomotic dehiscence due to a unique etiology
Abdominoperineal excision of male lower urinary tract for synchronous adenocarcinoma of urethra and urinary bladder
No full textUrethral adenocarcinoma is the least common histologic subtype of a rare primary carcinoma of the male urethra. Its site of origin remains speculative. The scarcity of reported cases in the literature makes it difficult to define the optimal management. This report is of a 40-year-old morbidly obese man with synchronous adenocarcinoma of the bulbar urethra and bladder, treated surgically by en bloc abdominoperineal penoprostatocystectomy. The pleural recurrence, after a disease-free period of 2 years, responded well to platinum-docetaxel-based systemic chemotherapy. Synchronous occurrence of adenocarcinoma of the urethra and bladder has not been previously reported. This case also highlights the possible role of upcoming adjuvant chemotherapeutic agents
Analisis Kisi-kisi Soal Ujian Akhir Semester Ganjil Mata Pelajaran Bahasa Indonesia Kelas VIII SMP YLPI Pekanbaru Tahun Ajaran 2017/2018
No full textThe grid is a reference or a guide used by each teacher when making questions, so the grid is used by the teacher as a tool or guide when making question items. This phenomenon raises whether the question grid is a teacher’s guide to making question items. The problem of this research is (1) Does the grating of the final semester goal of the Indonesia subjects in class VIII of YLPI Pekanbaru in the 2017/2018 academic year already meet the lattice component?, (2) Does the gril about the end of the semester objectives even the Indonesia language class VIII of YLPI Pekanbaru in the 2017/2018 school year already meet the requirements of the lattice?. The source of this research data is grid of the questions about the end of the semester for even Indonesia subjects in class VIII of SMP YLPI Pekanbaru in the academic year 2017/2018, amounting to 50 grids. The approach, while the method used is the content analysis method. In the data analysis section the author uses several relevant theories namely Arikunto 2012, Sudijono 2013, Hamalik 2013, Sukardi 2012, Purwanto 2013, Isjoni 2003, Direktorat Pembinaan 2018, Nursal 2007. The results of this study conclude that questions about the goal end of the semester even Indonesia subjects class VIII YLPI Pekanbaru school year 2017/2018, there are 17 that are not in accorfance with the components and the terms of the lattice, then the corresponding number is 33 questions
Multi-variant Sorption Optimization for the Uptake Of Pb(II) Ions by Jamun Seed Waste
No full textIn the present study, jamun seed waste has been explored for the removal of Pb(II) ions from aqueous solution. The multi-variant sorption optimization was achieved by the factorial design approach. 99.91% of Pb(II) ions was removed from aqueous solution. The results predicted by the model were in good agreement with the experimental results (the values of R2 and R2 adj. were found to be 99.89% and 99.95%, respectively). Langmuir and D-R isotherm studies were carried out to fi nd adsorbent's capacities (183.9 š 0.31 mg/g and 184.5 š 0.16 mg/g respectively), sorption free energy 13.17 š 0.16 and RL values in the range of 0.05-0.77, suggested the favorable chemical and/or ion exchange nature of the sorption process. The FT-IR study was carried out for unloaded and Pb(II) ions loaded jamun seed, indicated, Pb(II) ions associated with nitrogen and oxygen of jamun seed containing moieties during the adsorption process. The proposed method was successfully validated and applied for the treatment of Pb(II) ions contaminating drinking water
