Infrared Spectroscopy in the Clinical Analysis of Renal Stones

2015 ◽  
pp. 231-236
Author(s):  
J. Grieve ◽  
P. M. Zarembski
2015 ◽  
pp. 237-246 ◽  
Author(s):  
J. Bellanato ◽  
L. Cifuentes Delatte ◽  
A. Hidalgo ◽  
M. Santos

1995 ◽  
Vol 49 (4) ◽  
pp. 432-436 ◽  
Author(s):  
Zhengfang Ge ◽  
Chris W. Brown ◽  
Harold J. Kisner

A rapid method for the analysis of Pap smears has been developed with the use of near-infrared spectroscopy. Spectra of Pap smears from 50 female patients including 30 with normal cells, 9 with atypical cells, and 11 with cervical cancer were measured in the near-IR region of 4000 to 10,000 cm−1. Both the original spectra and the second-derivative spectra of Pap smears were subjected to data analysis. The malignant samples displayed abnormal spectra compared with the corresponding normal cervical samples; the atypical samples have spectral features characteristic of both normal and abnormal samples. With the use of principal component analysis (PCA) and discriminant analysis, the samples were grouped in patterns that were consistent with clinical analysis. Since obtaining near-infrared spectra of human tissues is a rapid and inexpensive process, the results suggest that the near-infrared spectra of human tissues may be of diagnostic value for cancer diagnosis.


2018 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Yansi Xue ◽  
Lei Xu ◽  
Xiaojun Xu ◽  
Dukun Wang ◽  
Guocheng Wang ◽  
...  

The objective of the study is to evaluate the clinical value of ureteroscopic holmium laser lithotripsy for the treatment of nephrolithiasis. Clinical data of 44 patients treated for renal stones with polyscope modular flexible ureter- oscopic holmium laser lithotripsy from May 2014 to April 2015 were retrospectively analysed. Following the operation, F4.7 D-J stents were routinely indwelled for 4 weeks and catheterization for 1-3 days. A plain kidney, ureter, and blad- der (KUB) X-ray was performed on postoperative days too. A total of four success cases were determined following the first treatment. The remaining 40 cases were first placed with double-J stent and the surgery was performed one week later. Stone sizes between 0.8-4.0 cm in diameter were defined. The operation time for the treatment was 80-180 minutes. Patients were discharged within 3-5 days, and the double-J stent was removed within 1-3 months. 39 patients were found to be completely stone-free at approximately three months postoperatively. However, five patients were shown to have 11.1% of residual stones after treatment. No blood transfusion, septic shock, ureteral injury, or other complications were reported. Flexible ureteroscopic holmium laser lithotripsy is safe and effective for the treatment of nephrolithiasis. This approach could be a valuable choice for the treatment of patients with renal stones.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Jacopo Gervasoni ◽  
Aniello Primiano ◽  
Pietro Manuel Ferraro ◽  
Andrea Urbani ◽  
Giovanni Gambaro ◽  
...  

Daudon et al. have developed a complex morphoconstitutional classification of renal stone in six different morphological types and several subtypes. According to this classification, a precise correspondence exists between causes of renal stones and subtypes with a great clinical relevance and can be considering a sort of shortcut for the metabolic diagnosis in renal stone patients. Now the diagnosis of causes of renal stones generally requires repeated biochemical investigations on urine and blood samples and usually remains presumptive. We analyzed 150 urinary stones both by stereoscopic microscopy and Fourier transform infrared spectroscopy. The comparison of 150 stones did not reveal any disagreement. We have only 20 partial agreement, and clinicians agreed that the imprecise information obtained with morphological analysis alone would have missed an important clinical finding only in 3 cases. In conclusion, in our opinion, the analysis of urinary stone must combine two different analytical techniques: morphological analysis by stereomicroscope and biochemical analysis with the FT-IR.


2018 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Yansi Xue ◽  
Lei Xu ◽  
Xiaojun Xu ◽  
Dukun Wang ◽  
Guocheng Wang ◽  
...  

The objective of the study is to evaluate the clinical value of ureteroscopic holmium laser lithotripsy for the treatment of nephrolithiasis. Clinical data of 44 patients treated for renal stones with polyscope modular flexible ureter- oscopic holmium laser lithotripsy from May 2014 to April 2015 were retrospectively analysed. Following the operation, F4.7 D-J stents were routinely indwelled for 4 weeks and catheterization for 1-3 days. A plain kidney, ureter, and blad- der (KUB) X-ray was performed on postoperative days too. A total of four success cases were determined following the first treatment. The remaining 40 cases were first placed with double-J stent and the surgery was performed one week later. Stone sizes between 0.8-4.0 cm in diameter were defined. The operation time for the treatment was 80-180 minutes. Patients were discharged within 3-5 days, and the double-J stent was removed within 1-3 months. 39 patients were found to be completely stone-free at approximately three months postoperatively. However, five patients were shown to have 11.1% of residual stones after treatment. No blood transfusion, septic shock, ureteral injury, or other complications were reported. Flexible ureteroscopic holmium laser lithotripsy is safe and effective for the treatment of nephrolithiasis. This approach could be a valuable choice for the treatment of patients with renal stones.


2004 ◽  
Vol 171 (4S) ◽  
pp. 502-503
Author(s):  
Mohamed A. Gomha ◽  
Khaled Z. Sheir ◽  
Saeed Showky ◽  
Khaled Madbouly ◽  
Emad Elsobky ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document