In Vivo Analysis of Urinary Stones With Dual-Energy Computed Tomography
In Vivo Analysis of Urinary Stones With Dual-Energy Computed Tomography
Erdogan, Hasan; Temizoz, Osman; Koplay, Mustafa; Ozturk, Bahadir
2019-01-01 00:00:00
Objective
Formation mechanisms and treatment of the urinary stones are different, depending on their chemical structure. Therefore, determining the stone type plays a key role in planning treatment and preventive measures. Computed tomography (CT), with the use of dual-energy technology in recent years, has made it possible to do in vivo analysis of urinary stones. In this study, we aimed to evaluate the diagnostic efficacy of dual-energy CT (DECT) and compare its results with in vitro analysis, which is accepted as a gold standard for analysis of urinary stones.
Materials and Methods
The DECT examinations were performed on 373 patients using 128-slice dual-source CT scanner. Analysis of attenuation ratios in the high and low kilovoltage peak values of the stone was performed at workstation, and stones were classified as hydroxyapatite, calcium oxalate, cystine, and uric acid. On follow-up, the stone was obtained in 35 patients as a result of surgery or passed spontaneously. The DECT analysis and in vitro analysis results were compared and statistically evaluated.
Results
In all patients, 136 hydroxyapatite, 160 calcium oxalate, 57 uric acid, and 20 cystine stones were detected with DECT. In vitro analyses of the stones were performed in 35 patients, and 8 hydroxyapatite, 18 calcium oxalate, 6 uric acid, and 3 cystine stones were revealed. When DECT analysis results were compared with in vitro analysis results, stone types were detected correctly in 32 (91.4%) patients and incorrectly in 3 (8.6%) patients. Especially all uric acid and cystine stones were correctly detected with DECT.
Conclusions
With advanced postprocess analysis methods, DECT is able to analyze urinary stones. The DECT is found superior especially in detecting uric acid and cystine stones. Its success in detecting hydroxyapatite and calcium oxalate stones is also high. When in vivo analyses of the stones are performed with DECT, it will be possible to make a contribution to the personalization and optimization of the treatment.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngJournal of Computer Assisted TomographyWolters Kluwer Healthhttp://www.deepdyve.com/lp/wolters-kluwer-health/in-vivo-analysis-of-urinary-stones-with-dual-energy-computed-3500BoFI4L
In Vivo Analysis of Urinary Stones With Dual-Energy Computed Tomography
Objective
Formation mechanisms and treatment of the urinary stones are different, depending on their chemical structure. Therefore, determining the stone type plays a key role in planning treatment and preventive measures. Computed tomography (CT), with the use of dual-energy technology in recent years, has made it possible to do in vivo analysis of urinary stones. In this study, we aimed to evaluate the diagnostic efficacy of dual-energy CT (DECT) and compare its results with in vitro analysis, which is accepted as a gold standard for analysis of urinary stones.
Materials and Methods
The DECT examinations were performed on 373 patients using 128-slice dual-source CT scanner. Analysis of attenuation ratios in the high and low kilovoltage peak values of the stone was performed at workstation, and stones were classified as hydroxyapatite, calcium oxalate, cystine, and uric acid. On follow-up, the stone was obtained in 35 patients as a result of surgery or passed spontaneously. The DECT analysis and in vitro analysis results were compared and statistically evaluated.
Results
In all patients, 136 hydroxyapatite, 160 calcium oxalate, 57 uric acid, and 20 cystine stones were detected with DECT. In vitro analyses of the stones were performed in 35 patients, and 8 hydroxyapatite, 18 calcium oxalate, 6 uric acid, and 3 cystine stones were revealed. When DECT analysis results were compared with in vitro analysis results, stone types were detected correctly in 32 (91.4%) patients and incorrectly in 3 (8.6%) patients. Especially all uric acid and cystine stones were correctly detected with DECT.
Conclusions
With advanced postprocess analysis methods, DECT is able to analyze urinary stones. The DECT is found superior especially in detecting uric acid and cystine stones. Its success in detecting hydroxyapatite and calcium oxalate stones is also high. When in vivo analyses of the stones are performed with DECT, it will be possible to make a contribution to the personalization and optimization of the treatment.
Journal
Journal of Computer Assisted Tomography
– Wolters Kluwer Health
Published: Jan 1, 2019
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References
Kidney stones: a global picture of prevalence, incidence, and associated risk factors
Romero, V; Akpinar, H; Assimos, DG
Determination of urinary stone composition using dual-energy spectral CT: initial in vitro analysis
Li, XH; Zhao, R; Liu, B
In vivo evaluation of the chemical composition of urinary stones using dual-energy CT
Manglaviti, G; Tresoldi, S; Guerrer, CS
Differentiating calcium oxalate and hydroxyapatite stones in vivo using dual-energy CT and urine supersaturation and pH values
Liu, Y; Qu, M; Carter, RE
Ureteral stones clinical guidelines panel summary report on the management of ureteral calculi
Segura, JW; Preminger, GM; Assimos, DG
Etiology and management of cystine lithiasis
Gupta, M; Bolton, DM; Stoller, ML
Mechanisms of differing stone fragility in extracorporeal shockwave lithotripsy
Zhong, P; Preminger, GM
Treatment of renal stones by extracorporeal shockwave lithotripsy: an update
Rassweiler, JJ; Renner, C; Chaussy, C
Stone fragility: its therapeutic implications in shock wave lithotripsy of upper urinary tract stones
Ansari, MS; Gupta, NP; Seth, A
Renal calculi: percutaneous management
Ramakumar, S; Segura, JW
In vivo characterization of urinary calculi on dual-energy CT: going a step ahead with sub-differentiation of calcium stones
Acharya, S; Goyal, A; Bhalla, AS
Shock wave lithotripsy: advances in technology and technique
Lingeman, JE; McAteer, JA; Gnessin, E
Hounsfield unit density in the determination of urinary stone composition
Motley, G; Dalrymple, N; Keesling, C
Genitourinary applications of dual-energy CT
Vrtiska, TJ; Takahashi, N; Fletcher, JG
Renal stone assessment with dual-energy multidetector CT and advanced postprocessing techniques: improved characterization of renal stone composition—pilot study
Boll, DT; Patil, NA; Paulson, EK
Urinary stone detection and characterisation with dual-energy CT urography after furosemide intravenous injection: preliminary results
Botsikas, D; Hansen, C; Stefanelli, S
Characterization of urinary stones with dual-energy CT: improved differentiation using a tin filter
Stolzmann, P; Leschka, S; Scheffel, H
Dual energy CT of the chest: how about the dose?
Schenzle, JC; Sommer, WH; Neumaier, K
Dual-energy CT: radiation dose aspects
Henzler, T; Fink, O; Schoenberg, SO
In vivo comparison of radiation exposure of dual-energy CT versus low-dose CT versus standard CT for imaging urinary calculi
Jepperson, MA; Cernigliaro, JG; Ibrahim, el-SH
Dose levels at coronary CT angiography—a comparison of dual energy–, dual source– and 16-slice CT
Kerl, JM; Bauer, RW; Maurer, TB
Quantification of head and body CTDI(VOL) of dual-energy x-ray CT with fast-kVp switching
Li, B; Yadava, G; Hsieh, J
Dual-energy computed tomographic pulmonary angiography: a pilot study to assess the effect on image quality and diagnostic confidence
Sangwaiya, MJ; Kalra, MK; Sharma, A
Dose and image quality at CT pulmonary angiography: comparison of first and second generation dual energy CT and 64-slice CT
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