Staging of bladder carcinoma: MRI-CT-surgical correlation

Amendola, MA; Glazer, G M; Grossman, H. Barton; Aisen, AM; Francis, I R

doi:10.2214/ajr.146.6.1179

Cited by 99 publications

(25 citation statements)

References 9 publications

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“…Also, TUUS has limitations in differentiating tumour stages because acoustic shadows are produced by tumour surface calci®cation or ultrasound is absorbed by large tumours. Conventional MRI is ineffective for bladder tumour staging, being unable to separate not only T1 from T2a, but also T2a from T2b [1,16]. Pavone et al [17] compared the clinical staging accuracy of these three imaging methods and concluded that TUUS was better than the other two methods for local staging.…”

Section: Discussionmentioning

confidence: 99%

“…While super®cial bladder tumour (fT1) can be cured by transurethral resection (TUR) in most cases, invasive bladder tumour (oT2a) requires radical cystectomy with pelvic lymphadenectomy. Imaging modalities such as CT, ultrasonography and conventional MRI often fail in local tumour staging; CT does not accurately determine the degree of invasion into the bladder wall and many reports indicate that MRI probably has the same limitations [1,2], because the spatial and contrast resolution obtained by MRI are insuf®cient to separate the individual layers of the bladder wall. A wide range has been reported for the accuracy of staging by CT (40±92%) [1±5] and for conventional and contrast material-enhanced MRI (50± 96%) [1±8].…”

Section: Introductionmentioning

confidence: 99%

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A new staging criterion for bladder carcinoma using gadolinium‐enhanced magnetic resonance imaging with an endorectal surface coil: a comparison with ultrasonography

Hayashi¹,

Tochigi

Shiraishi³

et al. 2000

BJU International

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Objective To evaluate the accuracy of a new staging criterion, submucosal linear enhancement (SLE) on gadolinium-diethylenetriamine-pentaacetic acidenhanced T1-weighted magnetic resonance imaging (MRI) using an endorectal surface coil (endorectal enhanced MRI), and to compare the accuracy of this method with that of transurethral ultrasonography (TUUS). Patients and methods The study included 71 patients with bladder tumours (63 men and eight women, mean age 65.5 years, range 31±85). The SLE coincided with abundant submucosal vascular beds, as reported in a previous study. When the SLE beneath the tumour maintained continuity, the tumour was diagnosed as super®cial (fT1), but if the SLE was interrupted by the tumour, the disease was considered invasive (oT2a). Super®cial muscle invasion (less than half the muscle layer) and deep muscle invasion (more than half the muscle layer) were classi®ed as T2a and T2b, respectively. When the tumour formed an extravesical mass, the tumour was classi®ed as T3b. Results The staging accuracy for bladder tumours using SLE on endorectal-enhanced MRI or TUUS was 83% and 60%, respectively (P<0.01). Using the SLE, muscle invasion of bladder tumour was diagnosed with an accuracy of 87%, a sensitivity of 91% and a speci®city of 87%; this was signi®cantly better than with TUUS (P<0.01). Conclusion The criterion of SLE on Gd-DTPA enhanced T1-weighted MRI using an endorectal surface coil is useful for staging bladder tumour, and the staging accuracy is signi®cantly better than with TUUS.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new staging criterion for bladder carcinoma using gadolinium‐enhanced magnetic resonance imaging with an endorectal surface coil: a comparison with ultrasonography

Hayashi¹,

Tochigi

Shiraishi³

et al. 2000

BJU International

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“…However, these studies were performed with low field-strength scanners (0.5 Tesla) and contained a small sample size [22,24,28]. In addition, Buy et al reported a staging accuracy of 60% for non-enhanced MR images [23], and in this study under-staging (at a rate of 33%) was the most common error.…”

Section: Initial Results For Bladder Tumor Stagingmentioning

confidence: 69%

“…An accurate preoperative staging of disease is the key to assuring a correct treatment regimen, and in this regard, prognosis largely depends on clinical and radiological staging at presentation [4]. "-" indicate that there's no article on that aspect.…”

Section: Introduction Current Issues In Understanding Bladder Tumorsmentioning

confidence: 99%

Urinary Bladder Cancer: The Current and Potential Role of MR Imaging in Non-Distant Metastatic Lesions

Wang¹,

Guo²,

Zhou³

et al. 2013

JCT

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Urinary bladder cancer is the second most common genitourinary malignancy in Westernized countries. A number of emerging imaging techniques have recently been reported in the literature for use in imaging bladder cancer. While the explicit application of MR imaging in bladder cancer especially in non-distant bladder cancer or bladder cancer localized in pelvic remains uncertain and awaits a thorough evaluation. Therefore, this article aims to make a systematic review of previous literature and provide a complete assessment of the value of MR as an evolving imaging tool in localized urinary bladder cancer application. Studies were conducted by searching the MEDLINE and PubMed databases up to 2012 using both medical subject heading (Mesh) and a free text method like "urinary bladder cancer", "magnetic resonance imaging" or "MRI", "diffusion weighted imaging" or "DWI". About 53 articles were selected and analyzed which were considered to be associated with the objective of this systematic review ( Table 1). Results showed that MRI especially the newer functional imaging technique like DWI may has a great potential role in localized bladder cancer like early detection, staging, evaluation of tumor aggressiveness and therapeutic responsiveness of patients in the assessment of urinary bladder cancer and so forth. Newer MRI has already proceeded promising results in bladder cancer application; and the explicit role of newer MRI in bladder cancer patients still needs further research and awaits to be thoroughly evaluated.

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“…A magnetic resonance imaging scan, on the other hand, may have detected the abnormalities surrounding the left donor kidney in this case. 16,17 Whether it was a wise decision by the surgeon to continue with the laparoscopic approach despite increasing surgical difficulties, instead of reverting to the open approach in time, cannot be decided here. A gas embolus is a potential hazard in any laparoscopic surgery, this is why the anesthesia team has to be vigilant at all times and should avoid ventilation with nitrous oxide.…”

Section: Objectif : Présenter Le Cas D'une Néphrectomie Laparoscopiqumentioning

confidence: 99%

Unexpected surgical difficulties leading to hemorrhage and gas embolus during laparoscopic donor nephrectomy: a case report

Martay

Dembo

Vater

et al. 2003

Can J Anesth/J Can Anesth

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P Pu ur rp po os se e: : To report the case of a laparoscopic donor nephrectomy in which the preoperative evaluation of the patient gave no indication of the surgical difficulties that were encountered intraoperatively, resulting in substantial bleeding, a suspected gas embolism, and emergency conversion of the procedure from laparoscopic to open donor nephrectomy.C Cl li in ni ic ca al l f fe ea at tu ur re es s: : A 59-yr-old man -height: 175 cm, weight: 85.5 kg, American Society of Anesthesiologists physical status I -presented as kidney donor for laparoscopic donor nephrectomy. He was healthy, on no medication, and had no previous abdominal surgery or diseases of the urinary tract. The preoperative computed tomography (CT) scan evaluation of his kidneys confirmed this by reporting a normal bilateral renal and renal vascular anatomy. In contradiction to the preoperative CT scan findings, the surgeon discovered abnormalities in the operative field. This included extensive scarring surrounding the left kidney, adenopathy near the right hilum, and a large branch lumbar vein entering the renal vein. The large branch lumbar vein was clipped but the clips dislodged, causing significant blood loss, and a suspected gas embolus. The procedure was converted to an emergency open donor nephrectomy. Postoperatively the patient made a full recovery.

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Staging of bladder carcinoma: MRI-CT-surgical correlation

Cited by 99 publications

References 9 publications

A new staging criterion for bladder carcinoma using gadolinium‐enhanced magnetic resonance imaging with an endorectal surface coil: a comparison with ultrasonography

A new staging criterion for bladder carcinoma using gadolinium‐enhanced magnetic resonance imaging with an endorectal surface coil: a comparison with ultrasonography

Urinary Bladder Cancer: The Current and Potential Role of MR Imaging in Non-Distant Metastatic Lesions

Unexpected surgical difficulties leading to hemorrhage and gas embolus during laparoscopic donor nephrectomy: a case report

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