Intrarenal Doppler Indices in Acute Ureteric Obstruction
Context: Urolithiasis remains a major health problem despite advances in therapy. Obstruction results in an increase in pressure within the urinary tract, causing structural and physiologic changes. This study aimed to calculate the intra renal Resistivity Index (RI) of acutely obstructed kidney...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2014-12-01
|
| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/5239/8969_CE(Ra)_F(Sh)_PF1(PU_Sh)_PFA(Sh).pdf |
| _version_ | 1819028122905870336 |
|---|---|
| author | Umamageswari Amirthalingam |
| author_facet | Umamageswari Amirthalingam |
| author_sort | Umamageswari Amirthalingam |
| collection | DOAJ |
| description | Context: Urolithiasis remains a major health problem despite
advances in therapy. Obstruction results in an increase in
pressure within the urinary tract, causing structural and
physiologic changes. This study aimed to calculate the intra
renal Resistivity Index (RI) of acutely obstructed kidney, to
determine the significance of Resistivity Index Ratio (RIR) and
difference in Resistivity Index of obstructed and contralateral
non obstructed kidney.
Materials and Methods: Prospective study with renal Doppler
for patients presenting with acute unilateral ureteric obstruction.
Seventy two patients between the age group 20-45 y presenting
to the Department of Radiodiagnosis, between January –
December 2006 with acute unilateral ureteric obstruction were
included in the study. Gray scale and Doppler evaluation of the
kidneys done; with assessment of the ureteric calculus. Renal
Doppler indices calculated and follow up of the same done after
relief of obstruction.
Statistical Analysis: Statistical analysis was done using SPSS
Software V13 and p-value <0.05 was considered as statistically
significant.
Results: Forty two patients (58.33%) had mild, 28 (38.89%)
moderate and 2 (2.78%) severe hydronephrosis. The mean RI of
the obstructed kidney was 0.66±0.88 and that of contralateral
non obstructed kidney was 0.569±0.05. Delta RI between
the obstructed and contralateral non obstructed kidney was
0.08±0.03. The mean RIR between the obstructed and non
obstructed kidney was 1.12±0.04 and the same after relief of
obstruction was 1.03±0.06.
Conclusion: The intrarenal Resistivity indices are less sensitive
indicators in predicting the diagnosis of acute ureteric
obstruction, although Resistivity Index Ratio appears to be a
better parameter. The indices within the normal range do not
rule out the absence of obstruction. Hence these parameters
should not be interpreted in isolation. |
| first_indexed | 2024-12-21T05:53:21Z |
| format | Article |
| id | doaj.art-ee8e98cc1e774d45b12a3963a1db1090 |
| institution | Directory Open Access Journal |
| issn | 2249-782X 0973-709X |
| language | English |
| last_indexed | 2024-12-21T05:53:21Z |
| publishDate | 2014-12-01 |
| publisher | JCDR Research and Publications Private Limited |
| record_format | Article |
| series | Journal of Clinical and Diagnostic Research |
| spelling | doaj.art-ee8e98cc1e774d45b12a3963a1db10902022-12-21T19:13:55ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2014-12-01812RC11RC1310.7860/JCDR/2014/8969.5239Intrarenal Doppler Indices in Acute Ureteric ObstructionUmamageswari Amirthalingam0Assistant Professor, Department of Radiodiagnosis, Sri Manakula Vinayagar Medical College and Hospital, Madagadipet, Puducherry, India.Context: Urolithiasis remains a major health problem despite advances in therapy. Obstruction results in an increase in pressure within the urinary tract, causing structural and physiologic changes. This study aimed to calculate the intra renal Resistivity Index (RI) of acutely obstructed kidney, to determine the significance of Resistivity Index Ratio (RIR) and difference in Resistivity Index of obstructed and contralateral non obstructed kidney. Materials and Methods: Prospective study with renal Doppler for patients presenting with acute unilateral ureteric obstruction. Seventy two patients between the age group 20-45 y presenting to the Department of Radiodiagnosis, between January – December 2006 with acute unilateral ureteric obstruction were included in the study. Gray scale and Doppler evaluation of the kidneys done; with assessment of the ureteric calculus. Renal Doppler indices calculated and follow up of the same done after relief of obstruction. Statistical Analysis: Statistical analysis was done using SPSS Software V13 and p-value <0.05 was considered as statistically significant. Results: Forty two patients (58.33%) had mild, 28 (38.89%) moderate and 2 (2.78%) severe hydronephrosis. The mean RI of the obstructed kidney was 0.66±0.88 and that of contralateral non obstructed kidney was 0.569±0.05. Delta RI between the obstructed and contralateral non obstructed kidney was 0.08±0.03. The mean RIR between the obstructed and non obstructed kidney was 1.12±0.04 and the same after relief of obstruction was 1.03±0.06. Conclusion: The intrarenal Resistivity indices are less sensitive indicators in predicting the diagnosis of acute ureteric obstruction, although Resistivity Index Ratio appears to be a better parameter. The indices within the normal range do not rule out the absence of obstruction. Hence these parameters should not be interpreted in isolation.https://jcdr.net/articles/PDF/5239/8969_CE(Ra)_F(Sh)_PF1(PU_Sh)_PFA(Sh).pdfdoppler indicesureteric obstruction |
| spellingShingle | Umamageswari Amirthalingam Intrarenal Doppler Indices in Acute Ureteric Obstruction Journal of Clinical and Diagnostic Research doppler indices ureteric obstruction |
| title | Intrarenal Doppler Indices in Acute Ureteric Obstruction |
| title_full | Intrarenal Doppler Indices in Acute Ureteric Obstruction |
| title_fullStr | Intrarenal Doppler Indices in Acute Ureteric Obstruction |
| title_full_unstemmed | Intrarenal Doppler Indices in Acute Ureteric Obstruction |
| title_short | Intrarenal Doppler Indices in Acute Ureteric Obstruction |
| title_sort | intrarenal doppler indices in acute ureteric obstruction |
| topic | doppler indices ureteric obstruction |
| url | https://jcdr.net/articles/PDF/5239/8969_CE(Ra)_F(Sh)_PF1(PU_Sh)_PFA(Sh).pdf |
| work_keys_str_mv | AT umamageswariamirthalingam intrarenaldopplerindicesinacuteuretericobstruction |