mp-615 - mp-615 - Medical Policies
Magnetic Resonance Imaging (MRI) Targeted Biopsy of the Prostate
Policy Number: MP-615
Latest Review Date: August 2019
Policy Grade: B
Effective for dates of service on or after August 15, 2017:
Magnetic resonance imaging-targeted biopsy of the prostate may be considered medically necessary for diagnosis and active surveillance of prostate cancer.
Magnetic resonance imaging- targeted biopsy of the prostate using CPT code 55706 for saturation biopsy is considered not medically necessary and investigational.
For information on saturation biopsy, please refer to medical policy #396: Saturation Biopsy for Diagnosis and Staging of Prostate Cancer Policy.
Effective for dates of service prior to August 15, 2017:
Magnetic resonance imaging-targeted biopsy of the prostate is considered not medically necessary and investigational.
DESCRIPTION OF PROCEDURE OR SERVICE:
Prostate cancer is the most commonly diagnosed cancer and the third leading cause of cancer deaths among men in the U.S., with an estimated 161,360 new cases and 26,730 deaths in 2017.
The diagnosis and grading of prostate cancer are performed by taking a biopsy of the prostate gland. A prostate biopsy typically is performed in men who have an elevated prostate-specific antigen (PSA) level or who present with symptoms. The purpose of the biopsy is to determine whether cancer is present and to determine tumor grade. Tumor grade (Gleason score) is a major determinate in whether a patient is eligible for active surveillance (lower grade tumors) or factor for determining definitive intervention (higher-grade tumors). Patients on active surveillance undergo periodic follow-up prostate biopsies for assessment of cancer progression (upgrading of Gleason score).
Prostate biopsies are currently performed using transrectal ultrasound (TRUS) guidance with a 12-core sampling strategy. TRUS was introduced in the late 1980s; with this technique, tissue cores are obtained systematically under ultrasound guidance throughout the whole prostate, although this approach still represents blind biopsy of the prostate as to the location of possible cancer. Prior to the 12-core sampling, 6-core (sextant) sampling was thought to miss too many cases of cancer. However, the 12-core sampling method may over-diagnose clinically insignificant disease and underdiagnose clinically significant disease. Compared with subsequent prostatectomy, TRUS underestimates tumor grade up to 40% of the time and too often detects clinically insignificant disease.
Therefore, the ideal biopsy strategy would only identify men with prostate cancer of clinical significance to direct interventional therapy, and to minimize the detection of clinically insignificant prostate cancer and the risk of consequent overtreatment.
For men undergoing an initial biopsy for an elevated PSA, the systematic 12-core TRUS biopsy detection rate for prostate cancer is approximately 40% to 45%. If an initial 12-core biopsy is negative, and there is still a clinical suspicion of cancer, subsequent serial 12-core biopsies may detect cancer, or, other biopsy techniques such as transperineal template‒guided saturation biopsy (in which 30-80 cores are typically obtained) may be used (See medical policy #396: Saturation Biopsy for Diagnosis and Staging of Prostate Cancer Policy). Saturation biopsy, which is considered investigational, allows for anterior and apical sampling and may detect significant cancer, but also results in oversampling of insignificant cancers. In addition, transperineal biopsy requires general anesthesia and is associated with increased morbidity.
Multiparametric Magnetic Resonance Imaging
Multiparametric MRI includes anatomic T2-weighted imaging for localization of the normal gland and cancer foci and two functional imaging techniques: diffusion-weighted and perfusion imaging. The mpMRI evaluation permits identifying tumor location and extent, oversampling areas of interest, undersampling or not sampling nontarget areas, and sampling of clinically significant disease (higher grade tumor). T2-weighted images reflect the water content of tissues and can define the zonal anatomy of the prostate and the presence of prostate cancer as focal areas of low-signal intensities. Degree of intensity decrease differs with Gleason score; higher Gleason score prostate cancer shows lower signal intensities. False-positive findings can occur with benign abnormalities, including prostatitis, atrophy, fibrosis, gland hyperplasia, or irradiation or hormonal treatment effects. Diffusion-weighted images measure the random motion of water molecules. Low diffusion coefficients are associated with prostate cancer, and there is an inverse correlation between these values and Gleason score; however, confidence intervals overlap. Perfusion imaging allows assessment of contrast kinetics in focal lesions; prostate cancer typically enhances faster and to a greater extent than the surrounding prostate; however, non-specificity of patterns limits the usefulness of this technique in isolation.
Several methods of MRI guidance are available for prostate biopsy: cognitive (or visual), direct (“in-bore”), and MRI-ultrasound (US) fusion (visual targeted or software-based targeted). Image fusion is the process of combining information from more than one image into a single image, which may be more informative than any of the images separately. Based on MRI, suspicious areas are identified (i.e., regions of interest) and subjected to targeted biopsy.
With the visual method, the ultrasound operator simply aims the biopsy needle at the area of the prostate where prior MRI indicated the lesion. This method requires the MRI unit, a conventional TRUS facility, and an ultrasound operator with no additional training beyond TRUS biopsy. The disadvantage is the potential for human error in the extrapolation from MRI to TRUS without an overlay of the images.
Direct (in-bore) MRI-targeted biopsy requires the MRI tube, a fusion of a prior MRI demonstrating a lesion with a contemporaneous MRI to confirm biopsy needle location, and needles introduced into the regions of interest. Serial MRI scans are performed to confirm the biopsy needle placement. Studies have demonstrated that in-bore MRI-targeted biopsies have a median cancer detection rate significantly higher than random biopsies; however, this technique is time-consuming and costly, including the in-bore time and the two MRI sessions necessary. In addition, only suspicious lesions are sampled, because tissues with a “normal” appearance on MRI are not obtained.
MRI-TRUS fusion biopsy, done visually or using software, superimposes preprocedure (stored) MRI over an intra-procedure (real-time) ultrasound to direct the biopsy needle to an ultrasound region of interest defined by the mpMRI.
Table 1. Techniques for MRI-Guided Prostate Biopsy
US operator targets the biopsy needle at the area of the prostate where prior MRI indicated a lesion during TRUS
Fusion of a prior MRI demonstrating a lesion with a contemporaneous MRI to confirm biopsy needle location, and needles introduced into the regions of interest
MRI-US fusion (visual targeted or software-based targeted)
Prior MR image superimposed over an intra-procedure (real-time) US to direct the biopsy needle during TRUS
MR: magnetic resonance; MRI: magnetic resonance imaging; TRUS: transrectal ultrasound; US: ultrasound.
Currently, there is available evidence comparing these three techniques in terms of their ability to detect overall or clinically significant prostate cancer.
Proposed clinical indications for use of MRI-guided prostate biopsy include: (1) as initial biopsy, (2) rebiopsy after a first negative standard biopsy in men with persistent suspicion of disease, including those with persistently increased PSA, suspicious digital rectal exam, previous biopsy with an atypical focus on histology, or extensive high-grade prostatic intraepithelial neoplasia, (3) follow-up for active surveillance to determine initial eligibility for active surveillance and assessing progression disease over time, (4) for local recurrence post radical prostatectomy, post external beam radiotherapy, or after high-intensity focused ultrasound.
The most recent literature update was performed through June 10, 2019.
For individuals who have a suspicion of prostate cancer who receive MRI-targeted diagnostic biopsy of the prostate, the evidence includes numerous prospective and retrospective studies of paired cohorts, two randomized controlled trials and systematic reviews and meta-analyses of these studies comparing MRI-targeted biopsy with TRUS biopsy in detecting overall, clinically significant and clinically insignificant prostate cancers. The relevant outcomes are overall survival, disease-specific survival, test accuracy, morbid events, and QOL. Studies on the use of MRI-targeted prostate biopsy have shown that the technology may diagnose more clinically significant cancers than TRUS biopsy and fewer clinically insignificant cancers, which may stratify patients for treatment vs active surveillance. Considering the prognostic value of risk stratification based on prostate biopsy, better diagnostic accuracy is likely to better identify patients with clinically significant prostate cancer leading to changes in management that would be expected to result in clinically meaningful outcomes in terms of survival or QOL. The evidence is sufficient to determine that the technology results in a meaningful improvement in net health outcome.
For individuals who have prostate cancer and are on active surveillance, who receive MRI-targeted biopsy the evidence includes a systematic review and observational studies of paired cohorts comparing MRI-targeted biopsy with TRUS biopsy in detecting pathological progression of prostate cancer in terms of Gleason score and detection of higher grade (Gleason score ≥7) cancer. The relevant outcomes are overall survival, disease-specific survival, test accuracy, morbid events, and QOL. Currently available evidences suggest that compared to TRUS biopsy MRI-targeted biopsy is better in detecting patients on active surveillance who have progressed and need definitive intervention. With the greater ability to detect Gleason score ≥7 prostate cancer, which is a critical parameter for definitive therapy in prostate cancer, use of this biopsy guidance technique is likely to translate into positive clinically meaningful outcomes in terms of survival or QOL in this population. The evidence is sufficient to determine that the technology results in a meaningful improvement in the net health outcome.
PRACTICE GUIDELINES AND POSITION STATEMENTS
National Comprehensive Cancer Network
National Comprehensive Cancer Network (v.2.2019) on prostate cancer makes the following statements on the use of multiparametric magnetic resonance imaging (MRI) in the staging of prostate cancer:
“Multiparametric MRI (mpMRI) can be used in the staging and characterization of prostate cancer.”
“mpMRI may be used to better risk stratify men who are considering active surveillance. Additionally, mpMRI may detect large and poorly differentiated prostate cancer (Grade Group ≥2) and detect extracapsular extension (T staging). mpMRI has been shown to be equivalent to CT scan for pelvic lymph node evaluation.”
American College of Radiology
The American College of Radiology issued appropriateness criteria (last reviewed in 2016) that stated:
MRI-targeted biopsy of the prostate… promises to dramatically alter the current approach to prostate cancer diagnosis. MRI-targeted biopsy may be used for baseline diagnosis in patients who are biopsy naïve, for diagnosis of cancer (often in the central gland) in patients who have had a negative TRUS guided systematic biopsy but who continue to have an elevated PSA or other cause for clinical concern, for reevaluation of tumor grade in patients on active surveillance, and for diagnosis of local recurrence in patients who have undergone prior therapy.
National Institute for Health and Care Excellence
The National for Health and Care Excellence (2019) published guidelines on the diagnosis and management of prostate cancer with the following recommendations:
· “Do not routinely offer multiparametric MRI to people with prostate cancer who are not going to be able to have radical treatment.”
· “Offer multiparametric MRI as the first-line investigation for people with suspected clinically localised prostate cancer. Report the results using a 5-point Likert scale.”
· “Offer multiparametric MRI-influenced prostate biopsy to people whose Likert score is 3 or more.”
· “Consider omitting a prostate biopsy for people whose multiparametric MRI Likert score is 1 or 2, but only after discussing the risks and benefits with the person and reaching a shared decision. If a person opts to have a biopsy, offer systematic prostate biopsy.”
American Urological Association
The American Urological Association published guidelines in 2016 on prostate MRI and MRI-targeted biopsy in patients with prior negative biopsy. The Association recommended:
If a biopsy is recommended, prostate MRI and subsequent MRI-targeted cores appear to facilitate the detection of CS disease over standardized repeat biopsy. Thus, when high-quality prostate MRI is available, it should be strongly considered in any patient with a prior negative biopsy who has persistent clinical suspicion for prostate cancer and who is undergoing a repeat biopsy.
American Urological Association
The American Urological Association (2017) published a position statement on multiparametric MRI for diagnosis, staging, and management of prostate cancer. While noting that multiparametric MRI is used increasingly to guide initial biopsy in biopsy-naive men, to confirm presumed localized prostate cancer, and to select a definitive therapy, the Association concluded that the evidence was insufficient to recommend MRI for screening, staging, or surveillance of prostate cancer. Indications for population-based screening using MRI were deemed investigational, and the Association recommended that individual patients review risks and benefits with their caregivers to make a shared decision.
U.S. PREVENTIVE SERVICES TASK FORCE RECOMMENDATIONS
No U.S. Preventive Services Task Force recommendations for MRI-guided or MRI/ultrasound fusion biopsy of the prostate have been identified.
MRI/US fusion, MRI/TRUS fusion, fusion MRI, prostate cancer, prostate biopsy, MRI targeted biopsy
APPROVED BY GOVERNING BODIES:
Magnetic resonance imaging (MRI)‒guided or MRI/ultrasound (US) fusion biopsy is a medical procedure that uses MRI and ultrasound devices previously approved by the U.S. Food and Drug Administration (FDA). Prostate biopsy is a surgical procedure and, as such, it is not subject to regulation by FDA.
FDA product code, ultrasound devices: IYN, ITX, IYO. FDA product code, MRI devices: LNH, LNI, MOS.
Several MRI-US fusion software-based targeted prostate biopsy platform specifications have been cleared from marketing by FDA through the 510(k) marketing process. Fusion software and (manufacturers) include: Artemis™ (Eigen), BioJet™ (D&K Technologies), BiopSee® (MedCom), Real-time Visual Sonography (Hitachi), UroNav™ (Invivo/Philips), Urostation® (Koelis), and Virtual Navigator (Esaote).
Coverage is subject to member’s specific benefits. Group specific policy will supersede this policy when applicable.
ITS: Home Policy provisions apply.
FEP: Special benefit consideration may apply. Refer to member’s benefit plan. FEP does not consider investigational if FDA approved and will be reviewed for medical necessity.
There is no specific CPT code for this procedure. It would likely be reported with a prostate biopsy code (55700-55705) and the MRI guidance code 77021.
For information on saturation biopsy, please refer to medical policy #396: Saturation Biopsy for Diagnosis and Staging of Prostate Cancer.
- American College of Radiology (ACR). ACR Appropriateness Criteria; Prostate Cancer -Pretreatment Detection, Staging, and Surveillance. 2012; acsearch.acr.org/docs/69371/Narrative/. Accessed July 25, 2018.
- Antonarakis ES, Feng Z, Trock BJ, et al. The natural history of metastatic progression in men with prostate specific antigen recurrence after radical prostatectomy: long-term follow-up. BJU Int. Jan 2012; 109(1):32-39.
- Arsov C, Rabenalt R, Blondin D, et al. Prospective randomized trial comparing magnetic resonance imaging (MRI)-guided in-bore biopsy to MRI-ultrasound fusion and transrectal ultrasound-guided prostate biopsy in patients with prior negative biopsies. Eur Urol. Oct 2015; 68(4):713-720.
- Baco E, Rud E, Eri LM, et al. A Randomized Controlled Trial To Assess and Compare the Outcomes of Two-core Prostate Biopsy Guided by Fused Magnetic Resonance and Transrectal Ultrasound Images and Traditional 12- core Systematic Biopsy. Eur Urol. Jan 2016; 69(1):149-156.
- Bjurlin MA, Meng X, Le Nobin J, et al. Optimization of prostate biopsy: the role of magnetic resonance imaging targeted biopsy in detection, localization and risk assessment. J Urol. Sep 2014; 192(3):648-658.
- Da Rosa MR, Milot L, Sugar L, et al. A prospective comparison of MRI-US fused targeted biopsy versus systematic ultrasound-guided biopsy for detecting clinically significant prostate cancer in patients on active surveillance. J Magn Reson Imaging. Jan 2015; 41(1):220-225.
- Eggener SE, Scardino PT, Walsh PC, et al. Predicting 15-year prostate cancer specific mortality after radical prostatectomy. J Urol. Mar 2011; 185(3):869-875.
- Filson CP, Natarajan S, Margolis DJ, et al. Prostate cancer detection with magnetic resonance-ultrasound fusion biopsy: The role of systematic and targeted biopsies. Cancer. Mar 15 2016; 122(6):884-892.
- Frye TP, George AK, Kilchevsky A, et al. Magnetic Resonance Imaging-Transrectal Ultrasound Guided Fusion Biopsy to Detect Progression in Patients with Existing Lesions on Active Surveillance for Low and Intermediate Risk Prostate Cancer. J Urol. Mar 2017; 197(3 Pt 1):640-646.
- Fulgham PF, Rukstalis DB, Turkbey IB, et al. AUA policy statement on the use of multiparametric magnetic resonance imaging in the diagnosis, staging and management of prostate cancer. J Urol. May 5 2017 198(4):832-838.
- Gordetsky JB, Saylor B, Bae S, et al. Prostate cancer management choices in patients undergoing multiparametric magnetic resonance imaging/ultrasound fusion biopsy compared to systematic biopsy. Urol Oncol. Mar 8 2018 36(5):241.e247-241.e21
- Hricak H, White S, Vigneron D, et al. Carcinoma of the prostate gland: MR imaging with pelvic phased-array coils versus integrated endorectal--pelvic phased-array coils. Radiology. Dec 1994; 193(3):703-709.
- Kasivisvanathan V, Rannikko AS, Borghi M, et al. MRI-Targeted or Standard Biopsy for Prostate-Cancer Diagnosis. N Engl J Med. Mar 18 2018 378(19):1767-1777.
- Klotz L, Vesprini D, Sethukavalan P, et al. Long-term follow-up of a large active surveillance cohort of patients with prostate cancer. J Clin Oncol. Jan 20 2015; 33(3):272-277.
- Ma TM, Tosoian JJ, Schaeffer EM, et al. The Role of Multiparametric Magnetic Resonance Imaging/Ultrasound Fusion Biopsy in Active Surveillance. Eur Urol. Feb 2017; 71(2):174-180.
- Maxeiner A, Kittner B, Blobel C, et al. Primary magnetic resonance imaging/ultrasonography fusion-guided biopsy of the prostate. BJU Int. Mar 22 2018.
- National Comprehensive Cancer Network (NCCN). Prostate Cancer V1.2015. www.nccn.org/professionals/physician_gls/pdf/prostate.pdf.
- National Comprehensive Cancer Network (NCCN). NCCN clinical practice guidelines in oncology: Prostate Cancer. Version 2.2018. www.nccn.org/professionals/physician_gls/pdf/prostate.pdf. Accessed July 23, 2018.
- National Comprehensive Cancer Network. Prostate Cancer. Version 2.20 https://www.nccn.org/professionals/physician_gls/pdf/prostate.pdf. Accessed 1 July 2019.
- National Institute for Clinical Health and Care Excellence. Prostate Cancer: Diagnosis and Treatment, CG175. 2014. www.nice.org.uk/guidance/cg175/chapter/1-recommendations.Accessed July 23, 2018.
- National Institute for Health and Care Excellence. Diagnosis and Management of Prostate Cancer. https://www.nice.org.uk/guidance/ng131. Accessed 30 June 2019.
- Pierorazio PM, Walsh PC, Partin AW, et al. Prognostic Gleason grade grouping: data based on the modified Gleason scoring system. BJU Int. May 2013; 111(5):753-760.
- Porpiglia F, Manfredi M, Mele F, et al. Diagnostic pathway with multiparametric magnetic resonance imaging versus standard pathway: results from a randomized prospective study in biopsy-naive patients with suspected prostate cancer. Eur Urol. Aug 27 2016.
- Rosenkrantz AB, Verma S, Choyke P, et al. Prostate magnetic resonance imaging and magnetic resonance imaging targeted biopsy in patients with a prior negative biopsy: a consensus statement by AUA and SAR. J Urol. Dec 2016;196(6):1613-1618.
- Schoots IG, Petrides N, Giganti F, et al. Magnetic resonance imaging in active surveillance of prostate cancer: a systematic review. Eur Urol. Apr 2015; 67(4):627-636.
- Schoots IG, Roobol MJ, Nieboer D, et al. Magnetic resonance imaging-targeted biopsy may enhance the diagnostic accuracy of significant prostate cancer detection compared to standard transrectal ultrasound-guided biopsy: a systematic review and meta-analysis. Eur Urol. Sep 2015; 68(3):438-450.
- Siddiqui MM, Rais-Bahrami S, Turkbey B, et al. Comparison of MR/ultrasound fusion-guided biopsy with ultrasound-guided biopsy for the diagnosis of prostate cancer. JAMA. Jan 27 2015; 313(4):390-397.
- Siegel RL, Miller KD, Jemal A. Cancer Statistics, 2017. CA Cancer J Clin. Jan 2017; 67(1):7-30.
- Tang Y, Liu Z, Tang L, et al. Significance of MRI/transrectal ultrasound fusion three-dimensional model-guided, targeted biopsy based on transrectal ultrasound-guided systematic biopsy in prostate cancer detection: a systematic review and meta-analysis. Urol Int Oct 30 2018;100(1):57-65.
- Turkbey B, Merino MJ, Gallardo EC, et al. Comparison of endorectal coil and nonendorectal coil T2W and diffusion-weighted MRI at 3 Tesla for localizing prostate cancer: correlation with whole-mount histopathology. J Magn Reson Imaging. Jun 2014; 39(6):1443-1448.
- Valerio M, Donaldson I, Emberton M, et al. Detection of clinically significant prostate cancer using magnetic resonance imaging-ultrasound fusion targeted biopsy: a systematic review. Eur Urol. Jul 2015; 68(1):8-19.
- Walton Diaz A, Shakir NA, George AK, et al. Use of serial multiparametric magnetic resonance imaging in the management of patients with prostate cancer on active surveillance. Urol Oncol. May 2015;33(5):202 e201-202 e207.
- Wegelin O, van Melick HH, Hooft L, et al. Comparing three different techniques for magnetic resonance imaging targeted prostate biopsies: a systematic review of in-bore versus magnetic resonance imaging-transrectal ultrasound fusion versus cognitive registration. Is there a preferred technique? Eur Urol. Apr 2017; 71(4):517-531.
- Wu J, Ji A, Xie B, et al. Is magnetic resonance/ultrasound fusion prostate biopsy better than systematic prostate biopsy? An updated meta- and trial sequential analysis. Oncotarget. Dec 22 2015; 6(41):43571-43580.
Medical Policy Panel, October 2015
Medical Policy Group, December 2015 (4): Adopted new policy for prostate biopsy using MRI.
Medical Policy Administration Committee, January 2016
Available for comment December 21, 2015 through February 5, 2016
Medical Policy Panel, August 2017
Medical Policy Group, August 2017 (4): Updates to Description, Policy, Key Points, Coding and References. The Policy section was updated to reflect coverage of MRI-targeted biopsy of the prostate. A statement was also added to clarify that saturation biopsy using MRI guidance is considered investigational. The Coding section was updated by removing CPT code 55706 from the coding range and a statement regarding saturation biopsy was added.
Medical Policy Administrative Committee, September 2017
Available for comment August 18 through October 1, 2017
Medical Policy Panel, August 2018
Medical Policy Group, August 2018 (4): Updates to Description, Key Points, and References. No change to policy statements.
Medical Policy Panel, August 2019
Medical Policy Group, August 2019 (5): Updates to Description, Key Points, and References. No change to Policy Statement.
This medical policy is not an authorization, certification, explanation of benefits, or a contract. Eligibility and benefits are determined on a case-by-case basis according to the terms of the member’s plan in effect as of the date services are rendered. All medical policies are based on (i) research of current medical literature and (ii) review of common medical practices in the treatment and diagnosis of disease as of the date hereof. Physicians and other providers are solely responsible for all aspects of medical care and treatment, including the type, quality, and levels of care and treatment.
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3. The technology must improve the net health outcome;
4. The technology must be as beneficial as any established alternatives;
5. The improvement must be attainable outside the investigational setting.
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